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EPSON AcuLaser C8500

Revision C

Operating Principles

2-72

2.8 Controller Operating Principles

This section describes C311MAIN board which is the MAIN CONTROLLER of
LP-8500C/LP-8500CPD.

The main functions of the C311MAIN board are as follows:

Processing print commands and print data sent form the host
computer.

Producing image video signals.

Controlling and driving each mechanism in the engine to print image
on paper by synchronizing the signals with the engine controller side
(MCU PWB).

The printer uses a data bus 64-bit RISC CPU “R5000-2000MHz” for the
processor. A 168-pin SDRAM module (CLK: 66.6666MHz), which is one of the
major modules used for desk top personal computers, for memory. Combining
those equipments, the printer has succeeded in processing data on the
C287MAIN board at a high speed.

To run one page of color image, the printer generally processes more than 4
times as large data as for monochrome image. This printer, however, has a
high speed image processor ASIC(E05B64) on the C287MAIN board. Since
the ASIC allows the printer to give less duty to the PC as well as to the CPU on
the C287MAIN board, the printer manages to process color image data at a
higher speed than ever.

For communication with the host, the printer has a built-in parallel interface and
network interface (10BASE-T/100BASE-TX).

See 2-69 for the circuit board and Figure 2-70 for the C287MAIN board circuit
diagram.

As for LP-8500CPD, Script 3 International Font ROM module is installed to
socket B, and for socket C, PostScript 3 Japanese Font ROM module.

LP-8500CPD/LP-8300CPD and LP-8300C/LP-8300CPD have different part’s
codes for the MAIN CONTROLLER PWB (C311MAIN) and a different firmware
in the C269PROG MAIN BOARD.

Figure 2-70. Circuit Board

Table 2-11. MAIN BOARD Parts Code

Model Name

Part No.

LP-8500C/LP-8500CPD

2034672

LP-8300C/LP-8300CPD

2036599

ROM DIMM (CN3, 72-Pin)

P Bus

ROM Bus

Control Panel

Parallel I/F

Network I/F

Type B

Cooling Fan

CN17

2-Pin

CN16

32-Pin

CN6

80-Pin

CN11

20-Pin

CN10

36-Pin

CN18

8-Pin

CN12

36-Pin

Engine Controller

ROM DIMM (CN3, 72-Pin)

ROM DIMM (CN4, 72-Pin)

ROM DIMM (CN4, 72-Pin)

ROM DIMM (CN5, 72-Pin)

ROM DIMM (CN5, 72-Pin)

CODE DIMM (CN2, 72-Pin)

CODE DIMM (CN2, 72-Pin)

SDRAM DIMM (CN7, 168-Pin)

SDRAM DIMM (CN7, 168-Pin)

CN1

50-Pin

CN1

50-Pin

CN17

2-Pin

CN16

32-Pin

CN6

80-Pin

CN11

20-Pin

CN10

36-Pin

CN18

8-Pin

CN12

36-Pin

SDRAM DIMM (CN7, 168-Pin)

SDRAM DIMM (CN8, 168-Pin)

SDRAM DIMM (CN7, 168-Pin)

SDRAM DIMM (CN9, 168-Pin)

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Summary of Contents for AcuLaser C8500

Page 1: ...EPSON AcuLaserC8500 Color Laser Page Printer SEPG00 006 SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL ...

Page 2: ...ject to change without notice All effort have been made to ensure the accuracy of the contents of this manual However should any errors be detected SEIKO EPSON would greatly appreciate being informed of them The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof EPSON is a registered trademark of SEIKO EPSON CORPORA...

Page 3: ... NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS WARNING 1 REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN 2 MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE LISTED ON THE SERIAL NUMBER RATING P...

Page 4: ...of Epson approved lubricants and adhesives required for servicing the product APPENDIX Provides the following additional information for reference Connector pin assignments Electric circuit boards components layout Exploded diagram Electrical circuit boards schematics Symbols Used in this Manual Various symbols are used throughout this manual either to provide additional information on a specific ...

Page 5: ...or Identification L Left L H Left Hand L P Low Paper LD Laser Diode LEF Long Edge Feed LVPS Low Voltage Power Supply M Magenta MAG Magnetic MCU Machine Control Unit MECH Mechanical MOT Motor MSI Multi Sheet Inserter N F Normal Force N P No Paper NVM Non Volatile Memory O H Option Hinge OHP Overhead Projector In this manual OHP means OHP film OPC Organic Photo Conductor P H Paper Handling P R Press...

Page 6: ...es that are dangerous Be aware of these when you are working with the printer Power Supply Before starting any service procedure switch off the printer power and unplug the power cord from the wall outlet If you must service the printer when the power is applied be aware of the potential for electrical shock and do all tasks by following the procedures in this manual W A R N I N G Do not touch any...

Page 7: ...utput 5VDC LD circuit from the power supply and stops the laser beam emission This switch consists of the following two switches A switch that cuts off the power supply 24VDC 5VDC LD to the control circuits and related parts A switch that directly cuts off the power supply circuit 5VDC LD to the laser beam output circuit Front Cover Switch L This is a safety switch This switch is turned off when t...

Page 8: ...Assembly pull out type unit on the right side of the printer is pulled out cutting off the output 24VDC 5VDC LD from the power supply and stopping the printer operation without control units P J71 Connector that connects the Fuser Connector and Fuser Harness Assembly This is an interlock connector that cuts off the power supply 24VDC 5VDC LD to the control circuit and related parts This connector ...

Page 9: ...long distances Because of its convergence characteristic the laser beam converges into one point causing high density and high temperature A laser beam is harmful to the human body NOTE The laser beam in this printer is invisible W A R N I N G Do not expose yourself to the laser beam to prevent injury blindness Do not open the cover that has the laser beam warning label If you disassemble or assem...

Page 10: ...t move or place parts Be careful not to injure yourself with the sharp edges of the parts Do not work with wet or oily hands you may drop a part or injure yourself Dry your hands first When pulling out a part including a harness do not use too much force Pull out the part carefully and slowly step by step W A R N I N G The high temperature Assembly is very hot immediately after any printer operati...

Page 11: ...g or inhaling those materials Be careful to protect the eyes at all times Place a sheet inside or under the printer so that the floor or workbench is protected If the Developer or Fuser Oil gets on your clothing dry it with a cloth and wash with clean water NOTE The printer has the following consumable parts Drum Cartridge Waste Toner Box Oil Roll Assembly Toner Cartridge Y Toner Cartridge M Toner...

Page 12: ......

Page 13: ...Manual Contents Chapter 1 Product Descriptions Chapter 2 Operating Principles Chapter 3 Disassembly and Assembly Adjustment Chapter 4 Diagnostics Chapter 5 Troubleshooting Chapter 6 Maintenance Appendix ...

Page 14: ...her information on 1 5 2 Support Mode is added Chapter 5 A LCD warning message Worn Fuser is added In 5 1 4 4 Service Call Error Messages FIPs are added to the relating tables and some error messages are changed C December 7th 2000 Chapter 3 A caution message is added to 3 2 12 2 MAIN FUSER ASSY PL9 1 2 Removal ...

Page 15: ...1 37 1 5 5 Formatting the Flash ROM Module 1 37 1 5 6 Program ROM Update 1 37 1 5 7 ROM Module Copy 1 37 1 5 8 Maintenance Mode 1 37 1 5 9 Error Recovery Operation CPU Reset 1 37 1 6 Panel Setting 1 38 1 6 1 Setting Methods 1 38 1 6 1 1 OneTouch mode 1 38 1 6 1 2 SelecType mode 1 39 1 6 2 SelecType Setting Menu List 1 39 1 6 3 Details of Menus and Settings 1 46 1 6 3 1 Printing Menu 1 46 1 6 3 2 T...

Page 16: ...DRUM CARTRIDGE Life Detection Control 2 56 2 7 7 3 WASTE TONER BOX Full Detection Control 2 57 2 7 8 DEVE Control 2 59 2 7 8 1 Home Position Detection Operation 2 59 2 7 8 2 Toner Cartridge Presence Detection Position 2 60 2 7 8 3 Toner Cartridge New Old Detection Position 2 60 2 7 8 4 Developing Position 2 60 2 7 8 5 Detection Method Accompanying DEVE Control 2 61 2 7 9 IBT Control 2 63 2 7 9 1 P...

Page 17: ...val 3 36 3 2 8 7 BOTTOM PLATE SENSOR PL4 2 10 Removal 3 36 3 2 8 8 LIFT UP FRAME ASSY PL4 2 20 Removal 3 37 3 2 8 9 EMPTY SENSOR PL4 3 5 Removal 3 37 3 2 8 10 PITCH SENSOR PL4 3 6 Removal 3 38 3 2 8 11 MSI FEED FRAME ASSY PL4 3 20 Removal 3 38 3 2 8 12 LEVEL SENSOR PL4 3 23 Removal 3 39 3 2 8 13 P REGI ROLL ASSY PL4 4 3 Removal 3 40 3 2 8 14 PRE REGI CLUTCH ASSY PL4 4 49 Removal 3 40 3 2 8 15 REGI...

Page 18: ...11 1 6 Removal 3 96 3 2 14 6 PROCESS DRIVE ASSY PL11 1 10 Removal 3 96 3 2 14 7 ROTARY MOTOR ASSY PL11 1 20 Removal 3 97 3 2 14 8 ROTARY MOTOR DRIVE PWB PL11 1 21 Removal 3 97 3 2 14 9 DISPENSE CLUTCH ASSY PL11 1 22 Removal 3 98 3 2 14 10 DEVE CLUTCH ASSY PL11 1 23 Removal 3 98 3 2 15 Frame 3 99 3 2 15 1 DEVE TIE PLATE PL12 1 3 Removal 3 99 3 2 16 Electrical 3 100 3 2 16 1 LVPS PL13 1 1 Removal 3 ...

Page 19: ...ks 5 2 5 1 3 1 3 Precautions When Performing Work 5 3 5 1 4 Self Diagnostic Function by LCD Message 5 4 5 1 4 1 Status Message 5 7 5 1 4 2 Error Message 5 9 5 1 4 3 Warning Message 5 15 5 1 4 4 Service Call Error Messages 5 19 5 2 Level 1 FIP Fault Isolation Procedure 5 21 5 2 1 Precautions When Using FIP Fault Isolation Procedure 5 21 5 2 2 FIP Entry Chart 5 22 5 3 Level 2 FIP Fault Isolation Pro...

Page 20: ...7 4 2 Wiring and Signal Descriptions between Components 7 30 7 4 2 1 Configuration 7 30 7 4 3 Notation on the Diagrams for the Wiring and Signal Descriptions be tween Components 7 32 7 5 Component Layout 7 59 7 6 Circuit Diagrams 7 61 ...

Page 21: ...C H A P T E R 1 PRODUCTDESCRIPTIONS ...

Page 22: ...ard paper output can output 250 sheets Face down and 150 sheets Face up CONTROLLER FEATURES 1 Newly designed High Speed Controller A new 64 bit RISC CPU R5000 266 MHz 64 bit high speed memory SDRAM DIMM The same RAM as in the EPSON EPL C8200 can be used Standard RAM is 64 MB By installing additional RAM 3 slots the maximum memory size can be expanded to 768 MB Note keep the standard RAM 64MB insta...

Page 23: ...ode can be equipped 9 Job management functions available only for the job received from Network I F 10 Transfer voltage adjustment function 11 The default value for Gamma is changed to 1 8 Figure 1 1 Exterior View of the EPSON AcuLaser C8500 1 2 Specifications This section describes specifications for EPSON AcuLaser C8500 1 2 1 Basic Specifications Method Semi conductive laser beam scanning and dr...

Page 24: ... toward the paper feed direction Standard tray cassette Optional paper cassettes 4 4 500 Sheet Paper Cassette Unit Large Capacity Paper Unit Standard tray cassette Optional paper cassettes Monochrom print mode Standard mode Single sided print 26 1 PPM 24 8 PPM 13 8 PPM 13 5 PPM Duplex print 20 2 PPM 19 8 PPM 11 0 PPM 10 8 PPM Half speed mode Single sided print 4 0 PPM 2 0 PPM Color print mode Stan...

Page 25: ...justed by the users 2 Each cassette is equipped with the paper out sensor and paper near empty sensor Paper near empty condition is defined as follows 40 sheets 30 sheets FXL paper 64g m2 250 26mm A3W 64 105g m2 Recommended paper Normal paper 500 Sheet Paper Cassette Unit 500 53mm B5 LT A4 B4 A3 LG B LD EXE 64 105g m2 Recommended paper Normal paper Large Capacity Paper Unit 500 53mm B5 LT A4 B4 A3...

Page 26: ...Available I B5 176 x 250 LEF Available Unavailable LT 8 5 x 11 215 9 x 279 4mm LEF LEF LEF Available Available HLT 5 5 x 8 5 139 7 x 215 9mm LEF Available Unavailable LG 8 5 x l4 215 9 x 355 6mm SEF SEF SEF Unavailable Available EXE 7 25 x 10 5 184 15 x 266 7mm LEF LEF LEF Available Available GLG 8 5 x 13 215 9 x 330 2mm SEF Unavailable Available GLT 8 x 10 5 203 2 x 266 7mm LEF Available Availabl...

Page 27: ... Availability Paper Size Paper setting orientation 1 1 LEF Long Edge Feed SEF Short Edge Feed 2UP mode availability 2 2 2UP is available only for paper size of LT LEF or smaller For custom size paper paper length along the loading direction must be 210 mm 8 5 inch or shorter As for envelopes the total length with its flap opened must be 8 5 inch or shorter Duplex print availability Standard Option...

Page 28: ...XE Available A5 Unavailable GLG Available B4 Available GLT Available B5 Available B LD Available LT Available F4 Available I B5 Unavailable Special paper OHP sheet FU C10 FU Postcard FU DL FU MON FU C6 FU Table 1 8 Dimensions Description Dimension W x D x H mm 1 1 Tolerance is 1 mm Printer main body Standard condition 2 3 2 When the standard tray MSI and Output tray FU are stored 3 Printer dimensi...

Page 29: ...to the Energy Star program RATED CURRENT 100 V version 11A or less at rated voltage 115V version 10A or less at rated voltage 240V version 5A or less at rated voltage Product life Printer including the standard tray Approximately 180 000 printed pages 450 000 images on A4 LEF or five years whichever comes first Note one full color print is formed with four images So the printer can prints 180 000 ...

Page 30: ...1 10 Energy Save mode 38 3dB A or less Lower power mode 35 0dB A or less Ozone density 0 01 ppm time waited average value or less TOXICITY Photo conductor toner carrier plastic material have no effect on human body DUST EMISSION Dust concentration is less than 0 1 mg m3 ...

Page 31: ...at has been lubricated too smooth or slippery Paper whose texture is different on the front and back Paper with holes for binders and perforations Paper with irregular shape or not cut with right angles Paper with labels that come off and stick easily Paper with glue staples or paper clips attached Special ink jet paper Super Fine Paper glossy film and so on OHP sheets for other color laser printe...

Page 32: ...igure 1 3 1 Standard Tray MSI A3W Cassette Figure 1 3 Printable Area Standard Tray A3W Cassette 4 mm 4 mm 4 mm 4 mm Guaranteed print area Guaranteed print area Figure 1 2 Guaranteed Print Area Area with a margin of 4 mm from each side Applied to paper size up to 297 mm 11 7 in width and 444 5 mm 17 5 in length 330 2 mm 320 mm 297 mm 4 mm 5 mm 4 mm 431 8 mm 457 2 mm Paper Feed Direction Side guide ...

Page 33: ...r Feed Direction Side guide is here for paper whose width is up to 304 8 mm Maximum paper size 304 8 mm W x 457 2 mm L Printable area 296 8 mm W x 449 2 mm L Guaranteed print area 296 8 mm W x 431 8 mm L Guaranteed print area Guaranteed print area 4 mm 304 8 mm 296 8 mm 423 8 mm 431 8 mm 4 mm Paper Feed Direction Side guide is here for paper whose width is up to 304 8 mm Maximum paper size 304 8 m...

Page 34: ...ined when printed on the front side under a normal temperature only print on a back side is not guaranteed Envelopes that are adherent due to high temperature are excluded Paper jam rate single sided print 1 1000 or less 1 500 or less 1 100 Paper jam rate Duplex print 1 600 or less 1 300 or less Multiple feeding rate 1 1000 or less 1 1000 or less 1 50 Table 1 12 Standard Universal Cassette Rate Re...

Page 35: ... and Table 1 15 MAINTAINABILITY MTTR Within 30 minutes average 95 is completed within 50 minutes Curl height at ejection Less than 15mm Color printing with the image ratio of 5 in non aligned condition which varies depending on the image rate and aligning pattern Table 1 15 Paper Skew Direction A4 landscape A3 Main scan direction c d 1 5mm f 196mm 3 0mm f 406mm Sub scan direction a b 2 0mm e 271mm...

Page 36: ... mm or less within 644 mm Right left direction on the table 10 mm or less within 560 mm LUMINOSITY 3000 lx or less not to be exposed to direct sunlight SURROUNDING ENVIRONMENT Be sure to leave enough space around the printer for proper printer use and operation See Figure 1 7 Figure 1 7 Space Requirement 728 mm 1 780 mm 828 mm 1 735 mm 2 435 mm 835 mm 150 mm 590 mm 635 mm 2 1 With the Duplex Unit ...

Page 37: ...ach face total 5 faces Edge drop Height 457 mm 18 Test times Once for each edge Total 4 edges Optional units Test method 1 corner 3 edges 6 surfaces Drop height Duplex Unit 760 mm 500 Sheet Paper Cassette Unit 760 mm Large Capacity Paper Unit 760 mm A3W Cassette 920 mm Resistance to vibration Frequency 2 500 Hz Acceleration 12 6 m s2 on the vibration board Direction Three directions X Y Vertical Z...

Page 38: ... any error which affects on print quality under the following conditions Atmospheric discharging 8KV Contact discharging 6KV Rush current 1 2 cycle 100A or less 10 msec or less Insulation resistance 10M Ω or more Dielectric strength There is no breakdown when the following voltages are applied for one minute 100V 120V model AC 2000V Between primary and secondary sides AC 1000V Between primary side...

Page 39: ...950 A3 by VDE with GS mark SAFETY REGULATIONS LASER RADIATION 100V 120V version FDA21CFR Chapter 1 Subchapter J Section 1010 1040 220V 240V version IEC825 Class I Laser Product NOTE Laser power 5mW rated Wave length 785nm 15 15nm at 25 C EMI US FCCPart15 SubpartB ClassB ANSI 63 4 11 4D Europe EN55022 CISPR Pubilication22 ClassB Also the printer main body meets the following standards EN61000 3 2 H...

Page 40: ...tation 5300 C850142 850143 Color Copy Station 8500 32KB Serial Interface Card C82307 32KB Parallel Interface Card C83610 Coax Interface Card C82314 Twinax Interface Card C82315 GPIB Interface Card C82313 10 Base T 100 Base TX C82363 10 Base 2 10 Base T C82362 IEEE1394 C82372 Table 1 18 Consumable Products Product Code Toner Cartridge Yellow S050039 Toner Cartridge Magenta S050040 Toner Cartridge C...

Page 41: ... X Y Z Duration 50 minutes single way for each direction PHOTOCONDUCTOR UNIT SPECIFICATIONS NOTE Toner Photoconductor unit for the AcuLaser C8500 and EPL C8000 8200 are not compatible Formation PHOTOCONDUCTOR DRUM CLEANER WASTE TONER BOX Life 20 000 sheets 1 The waste toner box has the same life Dimension and weight 2 Unpacked Dimension W x D x H 213 mm x510 mm x 181 mm Weight 2 4 kg Table 1 19 To...

Page 42: ...BOX SPECIFICATIONS NOTE Waste Toner Boxes for the AcuLaser C8500 and EPL C8000 8200 are compatible Formation WASTE TONER BOX and others Life 20 000 sheets 1 Dimension and weight 2 Unpacked Dimension W x D x H 75 5 mm x 444 mm x 131 mm Wight 0 45 kg Packed Dimension W x D x H 149 mm x 495 mm x 192 mm Weight 0 87 kg Environmental condition for storage and transportation Same as for Toner Cartridge 1...

Page 43: ...over d FRONT COVER v Paper cassette 2 LC2 Option e Face Up Tray w Paper cassette 3 LC3 Option f Standard tray MSI Tray MP Tray x Cover E FEEDER CHUTE ASSY g Standard Universal Cassette Standard lower cassette y Unit B DUP TRANSPORT ASSY h RIGHT COVER z INVERTER ASSY i Unit C MSI ASSY Paper path unit A Cover F INVERTER ASSY j Parallel I F Connector B Unit G DUPLEX UNIT k Ground screws C DUP TRANSPO...

Page 44: ...EPSON AcuLaser C8500 Revision C PRODUCT DESCRIPTIONS Specifications 1 24 Figure 1 9 Exterior Parts Printer Main Body Front View Right View Back View Left View ...

Page 45: ...EPSON AcuLaser C8500 Revision C PRODUCT DESCRIPTIONS Specifications 1 25 Figure 1 10 Exterior Parts Options Front View Right View Back View Left View ...

Page 46: ...68MB when a 256MB ROM is installed instead of the standard RAM With the standard RAM used the maximum memory size is 576MB 3 RAM slots including 1 for standard RAM Standard 64MB Expansion 32MB 64MB 128MB 256MB ROM 32 bit wide Program 4MB ROM DIMM Font 4MB EXPANSION ROM 3 slots ROM DIMM slots Slots A B Font ROM module PostSccipt3 module EPSON RIP Station 5300 module CM table Slot C Exclusively used...

Page 47: ...JL mode RCC mode DIAG mode SUPPLEMENTARY SOFTWARE Status sheet Network Status Sheet Option I F Status Sheet 1 PS3 Status Sheet 2 Font Sample each mode Hex dump Support mode Maintenance mode Engine Status Sheet for engine 1 Only when Type B level 3 is installed 2 Only when a PostScript3 module is installed INSTALLATION Installed to the main printer body 1 2 13 Controller Configuration The controlle...

Page 48: ...ace are equipped Figure 1 11 Host Interface Slots 1 3 1 Parallel Interface Specifications INTERFACE TYPE IEEE 1284 High Speed Bi directional Parallel I F OPERATING MODES Compatibility Nibble ECP SYNCHRONIZATION STROBE pulse CONNECTOR TYPE 57RE 40360 830B D7A DDK or equivalent PLUG Amphenol equivalent DATA TRANSMISSION TIMING Refer to Table 1 22 and Figure 1 12 PIN ASSIGNMENT Refer to Table 1 24 Ty...

Page 49: ...o the host that indicates the data from the host computer has been received 11 BUSY O HIGH status indicates the printer is not ready to accept data 12 PE O Indicates paper empty status in paper tray or cassette selected 13 SELOT O Always HIGH 14 AUTOX I When the signal is LOW the printer automatically feeds a line as CR is input The CR is detected when the printer is turned on or the interface sel...

Page 50: ...ts a user defined character string MFG CMD PJL EJL ESCPL2 ESCP9 PRPXL24 01 PCL HPGL2 01 ESCPAGE CMD PJL EJL ESCPL2 ESCP9 PRPXL24 01 PCL HPGL2 01 ESCPAGE 04 ESCPAGECOLOR 01 2 MDL CLS PRINTER DES CID 1 3 2 Ethernet Interface INTERFACE TYPE 10BaseT 100BaseTX Half Duplex Full Duplex Switched at power on COMMUNICATION PROTOCOL 1 IPX SPX IPX SPX NCP RIP SAP PrintServer RemotePrinter NDS SNMP ENPC 2 NetB...

Page 51: ...pped from the factory PRODUCT NAME Brand Name AL C8500 OEM Name ESC Page Printer EMULATION TYPE ENTITY TYPE Table 1 24 Pin Configuration for the Ethernet I F Pin Signal Name I O 1 Tx O 2 Tx O 3 Rx I 4 N C 5 N C 6 Rx I 7 N C 8 N C Table 1 25 Emulation Type Entity Type Emulation Emulation Type Entity Type PS 1 1 Added when a PostScript3 module is installed POSTSCRIPT 00 1 LaserWriter 1 ESC Page Colo...

Page 52: ...consists of the LCD 8 buttons and 6 LEDs See Figure 1 13 and Table 1 26 for the control panel appearance and its descriptions respectively Figure 1 13 Control Panel Appearance On Line Form Feed Continue SelecType Paper Source Paper Size Manual Feed Orientation RITech Copies MP Tray Size Menu Item Value Enter Reset Alt Toner Save Mode On Line Form Feed Continue SelecType Paper Source Paper Size Man...

Page 53: ...ecType Alt button Also serves as the Shift button E OneTouch Mode 2 LED L Menu Select button F OneTouch Mode 1 LED M Item Select button G SelecType Mode LED N Value Select button O Enter button Table 1 26 LEDs and switches on the Control Panel LED Button Location Name Remarks Location Name Remarks ...

Page 54: ...Paper Size Manual Feed Orientation OneTouch Mode 2 LED F On OneTouch mode 2 is enabled The following 4 items can be set in this mode RITech Copies Mp Tray Size Toner Save Mode SelecType Mode G On SelecType mode is enabled All LEDs All LEDs come on when a service call error has occurred 1 4 2 Button Functions On Line button H When the printer is on line pressing this button puts the printer in off ...

Page 55: ... used to select the value for Copies In SelecType mode this button is used to select the setting item NOTE If this button is pressed with the Shift button held down setting values and items scroll backward Value button N Pressing this button enables the item that was last selected In OneTouch mode 1 used to select the value for Manual Feed In OneTouch mode 2 used to select the value for MP Tray Si...

Page 56: ...alization Buttons On Line Continue Menu Power on Functions Clears the EEPROM to 00h and writes factory default values In this printer however the Fuser counter and Total pages are not cleared by this operation Color pages is cleared Color Pages is stored in the controller The fuser counter and Total Pages are stored on the engine side Termination After initializing the printer performs warm boot a...

Page 57: ...tes 1 5 8 Maintenance Mode Buttons On Line Form Feed Continue Power on Functions Adds the Maintenance menu to the setting menu After this operation the printer automatically performs warm boot and the Maintenance menu is enabled To eliminate this menu from the setting menus turn the printer off and back on Note that all engine related Service Call Errors Service Call Error e f f f are ignored No S...

Page 58: ...n in the panel design matrix SelecType mode The SelecType mode has the following two levels 1 Setting menu Panel setting items fall into numbers of categories called setting menus 2 Setting item This is the lowest level of the panel setting mode Some items have values to be selected and others are just executed directly 1 6 1 Setting Methods 1 6 1 1 OneTouch mode NOTE OneTouch mode is effective wh...

Page 59: ...u Emulation Menu Printing Menu Step Button 1 Changing the setting menu 1 1 The trailing means the current setting value Menu 2 Changing the setting item 1 Item 3 Changing the setting value 1 Value 4 Changing the setting value 1 Value 2 2 Using the Alt button Menu Item Value button it is possible to cycle through the lists backward 5 Enter the value Executes the operation Enter 6 To the next settin...

Page 60: ...EXE 4 MP Type Plain Letterhead Recycled Color Trnsprncy Labels LC1 Type Plain Letterhead Bond Recycled Color LC2 Type 5 Plain Letterhead Recycled Color LC3 Type 6 Plain Letterhead Recycled Color Item Value RITech On Off Toner Save Off On Top Offset 30 0 0 0 30 0 mm step 0 5 mm Left Offset 30 0 0 0 30 0 mm step 0 5 mm T Offset B 7 30 0 0 0 30 0 mm step 0 5 mm L Offset B 7 30 0 0 0 30 0 mm step 0 5 ...

Page 61: ...step1 Date 1 31 step1 Hour 0 23 step1 Minute 0 59 step1 Item Value Parallel I F On Off Speed Fast Normal Bi D Nibble ECP Off Buffer Size Normal Maximum Minimum Item Value Network I F On Off Network Config 28 No Yes Get IPAddress 15 Panel Auto PING IP Byte 1 15 0 192 255 IP Byte 2 15 0 168 255 IP Byte 3 15 0 192 255 IP Byte 4 15 0 168 255 SM Byte 1 15 0 255 SM Byte 2 15 0 255 SM Byte 3 15 0 255 SM ...

Page 62: ...8 4 00 12 00 999 75 pt step 0 25 pt SymSet IBM US Roman 8 Roman 9 ECM94 1 8859 2 ISO 8859 9 ISO 8859 10ISO 8859 15ISO PcBlt775 IBM DN PcMultiling PcE Europe PcTk437 PcEur858 Pc1004 WiAnsi WiE Europe WiTurkish WiBALT DeskTop PsText VeInternati VeUS MsPublishin Math 8 PsMath VeMath PiFont Legal UK ANSI ASCII Swedis2 Italian Spanish German Norweg1 French2 Windows McText PcIcelandic 30 PcLt774 30 PcTu...

Page 63: ...ont Courier Prestige Roman Sans serif Roman T Orator S Sans H Script OCR A OCR B Pitch 10 cpi 12 cpi 15 cpi Prop Condensed Off On T Margin 0 40 0 50 1 50 inch step 0 05 inch Text 1 62 2 66 1 available Max 105 Lines CGTable PcUSA Italic PcMultilin PcPortugue PcCanFrenc PcNordic PcTurkish2 PcE Europe BpBRASCII BpAbicomp 8859 15ISO PcEur858 PcSl437 PcTurkish1 Pclcelandic 8859 9 ISO Mazowia CodeMJK Pc...

Page 64: ... Level3 is installed CGTable PcUSA Italic PcMultilin PcPortugue PcCanFrenc PcNordic PcTurkish2 PcE Europe BpBRASCII BpAbicomp Roman 8 8859 15ISO PcEur858 ISO Latin1 Country USA France Germany UK Denmark Sweden Italy Spain1 Japan Norway Denmark2 Spain2 LatinAmeric Auto CR On Off Auto LF Off On Bit Image Dark Light Barcode ZeroChar 0 0 Item Value Font Courier Prestige Gothic Orator Script Presentor ...

Page 65: ...panel and Status Sheet It can be set in EJL It is not open to users 23 Not displayed in the panel and Status Sheet It can be set in EJL or PJL 24 This item is display only and setting value cannot be changed 25 STANDBYTIME command in EJL is also supported The default value is 60 minutes 26 When Interface setting is changed printing on the status sheet for themselves and status read back with EJL a...

Page 66: ...ANTITY Number of copies can be set for collating Since it has priority over the setting made for Copies the value set for Copies is ignored when the selected number of copies for Quantity is two or more This setting is made only by the PJL EJL ESC Page or ESC PageColor mode only The setting value is not stored If one job data is too large the printer indicates Collate was disabled and prints one c...

Page 67: ...ve messages when detecting the corresponding conditions On The above mentioned messages are not shown In this case make sure the image should not be larger than the page size NOTE When this item is set to on the printer prints in 1 UP mode PAPER TYPE Specifies the paper type to which the printer refers to determine the printing speed and CM 1 6 3 4 Setup Menu C M Y K TONER Shows the remaining leve...

Page 68: ...nitialization is executed HDD initialization takes much time and the initializtion progress is displayed as HDD Format in each 1 Roboot is ececuted after the initialization completes Any interfaces cannot be connected at this time 1 6 3 6 Toner Transfer Menu The setting menue is displayed and selection enabled only when the Support Mode has been activated by hidden operation when the power is turn...

Page 69: ...ets the IBT Cleaner counter The maintenance engineer must reset this counter after replacing the IBT Cleaner with a new one When the reset operation is done the printer reboots Then be sure to open the Front Cover and close it to make the operation effective IBT BELT CLEANER Resets the IBT Belt Cleaner counter The maintenance engineer must reset this counter after replacing the IBT Belt Cleaner wi...

Page 70: ...eset this counter after replacing the Fuser Unit with a new one When the reset operation is done the printer reboots Then be sure to open the Front Cover and close it to make the operation effective TOTAL COUNTER CLEAR Resets the Total Pages to 0 The engine s printer 1 and printer 2 counters are reset This operation also clears Color Pages When the reset operation is done the printer reboots Then ...

Page 71: ...e try taking any of the actions below See Table 1 29 For B W print lower the resolution to 300 dpi See Table 1 30 For color print use a non reciprocal compression format See Table 1 31 Reduce the size of the data buffer See Table 1 32 Fix the interface See Table 1 33 To avoid these errors without fail however adding memory is recommended 1 8 Dimensions The dimention of EPSON AcuLaser C8500 is show...

Page 72: ...ons The engine restrictions are classified as follows Refer to the following tables for more details Restrictions on the period from powering on to printing enable See Table 1 29 Restrictions on the period from the print command is received Density adjustment at Cycle up See Table 1 30 Restrictions on continuous printing See Table 1 31 Restrictions on the period from printing finished to mechanism...

Page 73: ...ty error at the last time Recovering operation from the toner empty error Calibrating when new photoconductor unit is installed 7 A new photoconductor unit is installed Draws patches on both ends on the photoconductor and supplies toner to the cleaner Print quality adjustment IBT ghost measures 12 When the IBT rotations are more than 1000 and printed 200 pages or more additionally 65Rh Humidity 35...

Page 74: ...ature is 94C or less 2 Every 20 pages 40 pages when 2 up printing9 3 After Error or Jam 4 The first printing after the amount of toner is adjusted Addmix Sweep Out After Empty Reset operation is executed Decide the BCR and laser output value During the operation the printer becomes APQ mode Calibrating when a new toner is detected Rotary2 3 When a new toner is detected at powering turned on or a c...

Page 75: ...ntinuous printing restriction Approx 5 Corresponds to A3 50 pages A4 LEF 2 up 100 pages since printing started Interrupt continuous printing to keep toner density Cycle down is done after the printing currently executed is finished It may reach A3 6pages A4 LEF 2 up 12 pages during Toner Near Empty Detects low density Approx 5 In case that low density is detected while density adjustment in Cycle ...

Page 76: ... coverage measures not necessary Near Toner Empty is detected Addmix supply toner During the operation the printer becomes APQ mode Density adjustment sweeps toner out 6 12 High density is detected during the density adjustment Sweep Out sweep toner out During the operation the printer becomes APQ mode Print quality adjustment Rotary idles 1 Max 10 Rotary revolutions When the total number of rotar...

Page 77: ...s rotation 1 minute before warm up completed Measures for fixing inferior at start up Photoconductor does not rotate P H motor rotation during standby 0 5 to 1 sec at 15 to 30 min intervals P H motor operates momentary when the printer is on standby To prevent the Fuser Nip from leaving marks when P H motor left heated Photoconductor does not rotates P H motor operates momentary when the printer i...

Page 78: ...C H A P T E R 2 OPERATINGPRINCIPLES ...

Page 79: ...lowing basic steps 1 Electrification The drum surface is charged with electricity 2 Exposure The image area is exposed by laser radiation 3 Developing The image area is developed with toner 4 Primary transfer Toner image on the drum is transferred to the belt 5 Cleaning The drum is cleaned 6 Repeat When in the YMCBk mode steps 1 5 are repeated for each of the 4 toner colors and the complete toner ...

Page 80: ...SSY C and DEVELOPER ASSY BK are hereinafter referred to by the generic term Developer Assy NOTE TONER CARTRIDGE Y TONER CARTRIDGE M TONER CARTRIDGE C and TONER CARTRIDGE BK are hereinafter referred to by the generic term Toner Cartridge The schematic diagram of the entire print process is as shown below Figure 2 2 Total Print Process Schematic Diagram ...

Page 81: ...s together with the drum The BCR is a conductive roll that receives a supply of discharge voltage from the HVPS and discharges by negative DC voltage combined with AC voltage BCR discharge is carried out in minute intervals near where contact is made with the drum The drum surface is provided with a uniform negative charge by DC bias voltage The drum surface is a photoconductor insulator in the da...

Page 82: ...ide the ROS ASSY The drum surface is scanned lengthwise from end to end using a rotating polygon mirror stationary mirror and lens attached to the Scanner Assy of the ROS ASSY The laser radiation exposed to the drum surface generates a electron hole inside the photoconductive layer Electrons are excited in the photoconductive band thus producing a hole in the valence band Attracted to the electric...

Page 83: ...et Roll where a uniform layer is formed by passing of the Trimmer Blade The surface of the Magnet Roll is coated with a thin semiconductor sleeve which is supplied DB Developing Bias voltage from the HVPS DB voltage is negative DC voltage coupled with AC voltage DC voltage keeps the Magnet Roll at a certain negative voltage relative to the photoconductive layer of the drum Potential is lower for t...

Page 84: ...loping For more information on each position see 2 7 8 DEVE Control in this chapter Figure 2 7 Exposure 2 The developing charge characteristics of the developer gradually deteriorate due to dirt on the surface produced by toner and smashing of the surface due to mixing Small amounts of carrier are added to the toner in the Cartridge in order to maintain the charge characteristics and carrier is di...

Page 85: ...l The 1ST BTR is a conductive roll that receives a supply of positive high voltage from the HVPS The IST BTR touches the back surface of the Belt and turns with the Belt to provide the back surface of the Belt with a positive charge The toner image negatively charged on the drum is attracted by the positive charge of the back surface of the Belt and is transferred from the drum to the Belt Figure ...

Page 86: ...e in contact with the drum The toner scraped off the drum is carried off by the Auger inside the DRUM CARTRIDGE and is collected in the WASTE TONER BOX Figure 2 11 Cleaning 1 Electrical drum cleaning A charge remains on the drum surface even after the excess toner is scraped off by the Cleaning Blade If the charge is allowed to remain on the drum surface it will interfere with subsequent steps in ...

Page 87: ... 3 6 Repeat Complete Toner Image Forming This is the step where the complete toner image consisting of 4 colors is formed on the Belt by sequentially transferring toner images of each color on the drum surface to the Belt Figure 2 13 Repeat 1 Figure 2 14 Repeat 2 ...

Page 88: ...provides the BACK UP ROLL with electric potential Along with neutralizing the positive charge on the back surface of the Belt the negative potential conveyed to the BACK UP ROLL induces a positive charge to the 2ND BTR via the Belt and paper The BACK UP ROLL Belt and 2ND BTR each have resistance Because the paper can act as a capacitor a positive charge is induced for the 2ND BTR Neutralizing the ...

Page 89: ...image to paper advance Advance and retract are switched by the BTR CAM SOLENOID Figure 2 16 Secondary Transfer 2 2 1 3 8 Electrical Discharge This is the step where the paper charge is neutralized eliminated by allowing the DC voltage to escape to the surface of the backside of the paper from the Detack Saw discharge plate The Detack Saw receives a supply of high voltage from the HVPS Image qualit...

Page 90: ...mage Formation step During this time the toner image in the process of being formed on the Belt will be destroyed if the Cleaning Blade touches the Belt The Cleaning Blade therefore must be moved away from the Belt retract except for when transferring the image to paper advance Advance and retract are switched by the BTR CAM SOLENOID Figure 2 17 Cleaning 2 1 3 10 Fixing This is the step where tone...

Page 91: ...ser radiation is turned ON OFF in accordance with electric signals VIDEO signal Expresses image data according to high low voltage level from the printer controller A single color image secondary dot image is completed by scanning 1 screen of the image To get a full color image a secondary dot image is formed for each of the 4 colors respectively Resolution is determined as follows No of dots in m...

Page 92: ...ute 2 3 1 PROCESS DRIVE ASSY Rotation force of the PROCESS DRIVE ASSY is conveyed by the following flow Figure 2 21 Process Drive Assay 2 3 2 FUSER MOTOR ASSY Rotation force of the FUSER MOTOR ASSY is conveyed via the FUSER DRIVE ASSY by the following flow Figure 2 22 Fuser Motor Assy ...

Page 93: ...3 3 P H MOTOR ASSY Rotation force of the P H MOTOR ASSY is conveyed via the P H DRIVE ASSY by the following flow Figure 2 23 P H Motor Assy 2 3 4 ROTARY MOTOR ASSY Rotation force of the ROTARY MOTOR ASSY drives the ROTARY FRAME ASSY Figure 2 24 Rotary Motor Assy ...

Page 94: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 17 2 3 5 INV MOTOR ASSY Option Duplex Rotation force of the INV MOTOR ASSY is conveyed by the following flow Figure 2 25 INV Motor Assy ...

Page 95: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 18 2 3 6 Gear Layout 2 3 6 1 Printer Figure 2 26 Gear Layout Printer ...

Page 96: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 19 2 3 6 2 Option Duplex Figure 2 27 Gear Layout Option Duplex ...

Page 97: ... Paper Feed Path When no options are installed NOTE The paper feed at the bottom of the printer is called Cassette 1 the first level of the optional FEEDER UNIT is called Cassette2 and the second level is called Cassette 3 Figure 2 28 Paper Feed Path When no options are installed ...

Page 98: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 21 2 4 2 Paper Feed Path Option Duplex Figure 2 29 Paper Feed Path Option Duplex ...

Page 99: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 22 2 4 3 Paper Conveyance Path Layout Figure 2 30 Paper Conveyance Path Layout ...

Page 100: ...ia the SECTOR GEAR The SIZE ACTUATOR is turned ON by pushing in the Paper Size Switch on the SIZE SWITCH ASSY Changing the position of the SIZE ACTUATOR changes the ON OFF combination of the 4 Paper Size Switches The printer detects the paper size according to the ON OFF combination The REAR GUIDE ASS moves vertically in the paper conveyance direction and aligns the sides of the paper In order to ...

Page 101: ...SSY and LOW PAPER SENSOR gets shorter When the Magnet on the back surface of the BOTTOM PLATE ASSY approaches the LOW PAPER SENSOR the LOW PAPER SENSOR detects magnetism thus sensing that the amount of paper remaining is low FEED SOLENOID Controls operation rotation stop of the FEED ROLL ASSY by controlling rotation of the FEED GEAR FEED ROLL ASSY When the FEED SOLENOID operates the FEED GEAR and ...

Page 102: ...feeding paper discharged from the paper to the MAIN P H ASSY TURN CLUTCH The TURN CLUTCH is transmits a drive from P H MOTOR ASSY to TURN ROLL ASSY TURN CHUTE SWITCH When opening and closing of TURN CHUTE UP ASSY was detected and it opened TURN CHUTE SWITCH is a safety switch in control which makes each movement stop Figure 2 32 Paper Feeder ...

Page 103: ...on of NUDGERROLL FEED ROLL RETARD ROLL The paper sent off by NUDGER ROLL is put in FEED ROLL and RETARD ROLL and carried to P REGI ROLL ASSY A paper after the second sheet is prevented and separated respectively by one sheet when it passes between FEED ROLL and RETARD ROLL when the form of many sheet is sent off with NUDGER ROLL PICK UP CLUTCH Cut drive transmission to NUDGER ROLL temporarily and ...

Page 104: ...so transported during the time when the top edge of the paper reaches the REGI METAL ROLL and REGI ROLL ASSY and the REGI METAL ROLL and REGI ROLL ASSY turn a loop is created for the paper and paper edge skew is corrected The REGI CLUTCH ASSY transmits drive of the P H MOTOR ASSY to the REGI METAL ROLL and REGI RUBBER ROLL ASSY and matches the paper with the secondary transfer position of the IBT ...

Page 105: ...see 2 7 4 OHP Front Back Detection Control REGI MSI INTL SW The REGI MSI INTL SW detects if the MSI REGI HIGH ASSY is installed to the printer This is a safety switch for control which stops each function if the MSI REGI HIGH ASSY is not installed Figure 2 35 MSI Paper Transportation II 1 Figure 2 36 MSI Paper Transportation II 2 ...

Page 106: ...ght Control in this chapter The Scanner Assy consists of a Scanner Motor that turns at half speed and polygon mirrors mounted on the Scanner Motor shaft Laser radiation output from the LD Assy strikes the polygon mirror The polygon mirror has 12 reflecting mirror sides and reflecting angle of the laser light changes by rotation of the Scanner Motor The drum surface is scanned lengthwise by laser r...

Page 107: ... the IBT BELT ASSY by the BELT CLEANER ASSY and brought in by the AUGER HIGH ASSY ERASE LAMP ASSY The ERASE LAMP ASSY eliminates remaining charge by irradiating the surface of the drum with light prior to being electrified by the BCR WASTE TONER SENSOR The WASTE TONER SENSOR detects when the WASTE TONER BOX is full of waste toner TONER BOX SENSOR The TONER BOX SENSOR detects whether or not the WAS...

Page 108: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 31 Figure 2 38 Xerographics II ...

Page 109: ...e Toner Cartridge is not mounted when there is no reflection ROTARY SENSOR Detects home position of the ROTARY FRAME ASSY The home position is the starting point for DEVE Control For details see 2 7 8 DEVE Control in this chapter DEVELOPER ASSY Y DEVELOPER ASSY M DEVELOPER ASSY C DEVELOPER ASSY BK The Developer Assy consists of the Auger Magnet Roll Trimmer Blade and Tracking Roll The Developer As...

Page 110: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 33 Figure 2 39 Development ...

Page 111: ... the IBT BELT ASSY The positions of the each color toner image transferred must line up accurately on the IBT BELT ASSY A silver mark TRO mark is therefore applied to the rear edge of the IBT BELT ASSY as a reference for transfer position of toner images The TRO SENSOR detects the transfer reference mark once per cycle of the IBT BELT ASSY A TRO signal signal for reference point for forming YMCBk ...

Page 112: ...minates the charge of the paper 2ND BTR CAM ASSY 2ND BTR CAM ASSY consists of the following parts BTR CAM CLUTCH BTR WHEEL SENSOR BTR CAM ASSY The BTR CAM ASSY transmits drive from the P H MOTOR ASSY to the 2ND BTR CAM ASSY via the P H DRIVE ASSY and controls the advance IBT BELT ASSY and 2ND BTR CLEANER make contact and retract IBT BELT ASSY and 2ND BTR CLEANER do not make contact of the 2ND BTR ...

Page 113: ...er C8500 Revision C Operating Principles 2 36 The Auger transports the toners scraped away by the Cleaning Blade to the AUGER HIGH ASSY The AUGER HIGH ASSY transports toner to the WASTE TONER BOX Figure 2 41 IBT II ...

Page 114: ...ature at which fixing is possible The TEMP SENSOR ASSY is sensor for detecting temperature that uses a thermistor device for which resistance changes according to temperature Making constant contact with the HEAT ROLL the TEMP SENSOR ASSY detects the surface temperature of the HEAT ROLL The TEMP SENSOR ASSY turns the H R HEATER and P R HEATER ON OFF lamp on off control and prevents primary overhea...

Page 115: ...er image in the process of being formed will be destroyed if the Cleaning Blade of the BELT CLEANER ASSY touches the IBT BELT ASSY before the complete toner image is formed on the IBT BELT ASSY The Cleaning Blade of the BELT CLEANER ASSY therefore must touch the IBT BELT ASSY only immediately after transferring the image to paper secondary transfer and must not touch the IBT BELT ASSY at any other...

Page 116: ...ed in by rib of EXIT UPPER ASSY and stops operation when the EXIT UPPER ASSY is open FUSER FAN 1 Discharges heat of the FUSER ASSY to prevent the internal temperature from rising excessively EXIT CHUTE FAN Discharges heat of the FUSER ASSY to prevent the internal temperature from rising excessively TOP EXIT SENSOR The TOP EXIT SENSOR detects passage of the print after fixing by change in position ...

Page 117: ... ASSY FUSER ASSY 2ND BTR ASSY BELT CLEANER EXIT LOWER ASSY AUGER HIGH ASSY DRIVE MOTOR PWB Controls the cycle of the P H MOTOR and FUSER MOTOR ASSY and provides the power P H DRIVE ASSY Transmits drive of the P H MOTOR ASSY to the MAIN P H FRAME ASSY DRUM CARTRIDGE etc FUSER DRIVE ASSY Transmits drive of the FUSER MOTOR ASSY to the FUSER ASSY 2ND BTR ASSY Developer Assy etc DEVE CLUTCH ASSY Transm...

Page 118: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 41 Figure 2 45 Drive ...

Page 119: ...cuit the LVPS includes control circuits for the H R HEATER and P R HEATER inlet power switch etc HVPS Supplies high voltage to the following parts to perform steps of the process such as electrification developing primary transfer and secondary transfer BCR inside DRUM CARTRIDGE Magnet Roll inside Developer Assy 1ST BTR inside TRANSFER ASSY CONTACT ROLL inside TRANSFER ASSY MCU PWB Controls printi...

Page 120: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 43 Figure 2 46 Electrical ...

Page 121: ...ciples 2 44 2 5 15 Option Duplex Option Duplex consists of the three parts 1 DUP TRANSPORT ASSY 2 INVERTER ASSY 3 ALIGNER ASSY You can print the both side of paper by adding this unit Figure 2 47 Whole Drawing Figure 2 48 Both Side Whole Paper Feed ...

Page 122: ...y INVERTER ASSY to ALIGNER ASSY CAB SWITCH I L CAB SWITCH I L is a safety switch in control which makes Be sure to perform the following measures after replacing with a new MAIN FUSER ASSY Performing these procedures before replacement can lead to many types of problems DUP CONTROLLER PWB Do the control of each movement of Option Duplex FORWARD CLUTCH Transmit the drive of INV MOT ASSY to INV2 ROL...

Page 123: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 46 EXIT SENSOR EXIT SENSOR measures the end of the paper carried by DUP TRANSPORT ASSY and detect the reversal timing ...

Page 124: ...CLUTCH is taken and OUT ROLLER ASSY rotates and carries a paper to MAIN P H FRAME ASSY ALIGNER OUT SENSOR A paper inside ALIGNER ASSY detects that carriage to MAIN P H FRAME ASSY was finished with ALIGNER OUT SENSOR ALIGNER SENSOR ALIGNER SENSOR detects that a paper was carried to ALIGNER ASSY by INVERTER ASSY ALIGNER DRIVE CLUTCH ALIGNER DRIVE CLUTCH transmits the drive of P H MOTOR ASSY to IN RO...

Page 125: ...inting SLEEP MODE Mode in which the FUSER control temperature is set to low to save power DEEP SLEEP MODE Mode in which power supply to the FUSER FUSER FAN and DEVE FAN is cut off to save power DIAG TEST MODE Mode in which the printer is able to receive diagnostics or is running diagnostics ERROR MODE Mode in which the printer detects some kind of problem not including errors related to no paper t...

Page 126: ...e same one of the two is selected according to the specifications 1 mm unit specs 2 Inch unit specs Table 2 1 Paper Size Control Cassette 1 Paper size Paper Size Switch Diagnostics display data Voltage Unit VDC SW1 SW2 SW3 SW4 No paper cassette 0 0 0 0 0E 0F 0 275 0 293 B5 LEF 1 1 1 0 0 BB BE 3 671 3 715 EXECUTIVE LEF 2 A4 LEF 0 1 0 0 47 4A 1 396 1 445 LETTER LEF 1 0 1 0 9D A1 3 098 3 152 A4 SEF 1...

Page 127: ... follows Table 2 2 Paper Size Control Cassette 2 Cassette 3 Paper size Paper Size Switch Diagnostics display data Voltage Unit VDC SW1 SW2 SW3 SW4 No paper tray 0 0 0 0 EBh F0h 4 78 0 05 B5 LEF 0 1 0 0 9Ah 9Fh 3 15 0 05 EXECUTIVE LEF A4 LEF 1 0 1 1 3Bh 40h 1 24 0 05 LETTER LEF 0 1 1 1 7Ah 7Fh 2 50 0 05 A4 SEF 0 0 1 1 BAh BFh 3 79 0 05 LEGAL 14 SEF 0 0 1 1 CAh CFh 4 11 0 05 B4 SEF 0 1 1 1 8Ah 8Fh 2...

Page 128: ...3 OHP Front Back Detection Control OHP White Frame Detection Movement There is a notch of the transparency in a part of the white zone at the end of the OHP paper with the white frame and the signal level of two sensors is more different and it can be detected Table 2 3 Paper Supply Unit Selection Control Priority sequence Selected paper supply unit Selection conditions 1st priority Cassette 1 Whe...

Page 129: ...be obtained This is called APC Automatic Power Control APC EXECUTION TIMING 1 Prior to printing print job 2 When VREF signal reference voltage corresponding to target values for quantity of light is changed by potential control when target values for quantity of light are altered 3 Each line by timing of SOS light signal internal signal to output laser radiation due to SOS signal while printing AP...

Page 130: ...ain consistent printing quality Potential control controls potential on the drum by measuring by means of the ADC sensor the developing concentration of the Cin 50 patch of each color Y M C Bk formed on the drum by BCR voltage quantity of laser radiation and developing voltage of differing specifications when printing and the concentration of the part of the drum not developed calculating the prop...

Page 131: ...oncentration Control ADC In order to conduct consistent printing the actual amount of toner in developer must be detected while not being affected by laser radiation and must be maintained With ADC Automatic Density Control BIAS development bands are formed on the drum of the various colors Y M C Bk by BCR voltage and developing voltage of differing specifications when printing and the concentrati...

Page 132: ... 2 7 6 4 ADC Solenoid Operation Every 1000 counts nominal the ADC Solenoid operates twice nominal at a cycle of 0 5sec ON AND 0 5sec OFF This causes the light emission reception parts of the ADC Sensor to be cleaned by the cleaning lever NOTE Count is a cumulative total that is incremented by 1 when the length of paper in the paper transport direction is 219mm LETTER LEF or less and incremented by...

Page 133: ...the DRUM CARTRIDGE is affected by the total number of revolutions of the drum Life of the DRUM CARTRIDGE drum is detected by totaling the number of Belt revolutions that can be obtained by TRO signal Detection conditions are as follows NOTE The count given above is a cumulative value incremented by 2 by TRO signal while the PROCESS MOTOR ASSY is running The drum turns twice per revolution of the B...

Page 134: ...OR NOTE Counter A and Counter B described below count the total number of prints Counter C counts dispense time for colors Y M C and Bk NOTE The WASTE TONER SENSOR detects when the WASTE TONER BOX is full of toner The WASTE TONER BOX full warning is given while Counters A C are counting Table 2 6 WASTE TONER BOX Full Detection Control Paper size paper length in transport direction YMCBk mode B W m...

Page 135: ...t Low Toner is determined to be full when the WASTE TONER SENSOR again detects toner full before Counter B counts 1625 Case 5 Case where toner full is again detected before Counter B counts 1625 Case where Counter B counts 1625 while toner full is still not detected Counter A Counter B and Counter C are reset Case 4 Counter B is triggered simultaneously when the WASTE TONER SENSOR no longer detect...

Page 136: ...e starting point for DEVE Control The following condition is the home position of the ROTARY FRAME ASSY Position 30 from the developing position of the DEVELOPER ASSY in direction opposite rotation direction Home position is the position where the ROTARY FRAME ASSY is rotated 136 from where the ROTARY SENSOR detects the protrusion of the ROTARY FRAME ASSY Figure 2 60 Home Position Detection Operat...

Page 137: ...resence detection position 360 from home position in rotation direction TONER CARTRIDGE M presence detection position 90 from home position in rotation direction TONER CARTRIDGE C presence detection position 180 from home position in rotation direction TONER CARTRIDGE Bk presence detection position 270 from home position in rotation direction TONER CARTRIDGE Y new old detection position 345 from h...

Page 138: ...ENSOR With trickle development used developer is collected in a separate chamber in the Toner Cartridge As the reflecting surface of a reflecting seal applied inside the chamber is covered by the collected developer it gradually becomes unable to reflect The CARTRIDGE SENSOR is a photosensor that determines the following by detecting light reflected from the collection chambers of the various Tone...

Page 139: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 62 No toner reset flow Figure 2 63 No Toner Reset Flow ...

Page 140: ...ime and environment must be offset by adjusting transfer current Primary transfer current determination flow is shown on the right Figure 2 64 Primary Transfer Current Determination Flow Monitor the number of the accumulation rotation of the drum and decide compensation value by the drum cycle Monitor life counter of Developer Assy and decide compensation value by life of Developer Assy Output reg...

Page 141: ...d environment In order to obtain stable transfer characteristics variation in resistances according to time and environment must be offset by adjusting transfer voltage Secondary transfer voltage determination flow is as shown on the right NOTE 2ND BTR error is detected when monitor value of output current for the above and secondary transfer is outside the prescribed range Figure 2 65 Secondary T...

Page 142: ...s This is controlled by the BTR CAM CLUTCH and BTR WHEEL SENSOR NOTE To advance the 2ND BTR the BTR CAM CLUTCH is ON and turn off BTR CAM CLUTCH after you detect the position of the advance condition with BTR WHEEL SENSOR To retract the 2ND BTR the BTR CAM CLUTCH is ON and turn off BTR CAM CLUTCH after you detect the position of the retract condition with BTR WHEEL SENSOR Switched by operation of ...

Page 143: ... or BIAS development band created by process control Toner formed on the Belt when paper jam occurs TYPES OF BELT CLEANING Belt cleaning is basically classified as the following 3 types Ordinary cleaning Cleaning carried out for maximum printable area 18 inches in processing direction while printing is carried out Special cleaning Cleaning is carried out for 1 Belt cycle after Cin 50 patch or BIAS...

Page 144: ...f times Detect life of TRANSFER ASSY by the count added at the time of the Belt rotation Because TRANSFER ASSY is equal to the device life warning value limit value is established as the following NOTE The above count is the accumulation value made a 1 count at a TR0 signal one time IBT BELT ASSY one turn Procedures when replacing NOTE Do the following treatment when exchanging TRANSFER Assy for n...

Page 145: ...d at a rate of two sheets of paper per Belt cycle Transfer is carried out in the order of Yellow for 1ST sheet Yellow for 2nd sheet Magenta for 1ST sheet Magenta Cyan for 1ST sheet Cyan for 2nd sheet Black for 1ST sheet and Black for 2nd sheet Figure 2 68 2UP Mode Table 2 8 1UP 2UP Control Transfer layout mode Image positioning for Belt 1 cycle Applicable paper size Applicable color mode Applicabl...

Page 146: ... become a fixed paper interval regardless of the paper size when it is printed continuously The formation of the print image Complete toner figure is done to become a fixed interval for every image when it is printed continuously in the same way as the paper carriage too As for the TR0 mark a print image is formed independently Figure 2 69 TRO less Mode ...

Page 147: ...environment temperature detected by ENVIRONMENT SENSOR NOTE The Heater is continuously ON after ON OFF is repeated the prescribed number of times when FUSER warm up starts 2 7 11 3 READY LIGHT SLEEP DEEP SLEEP Modes Control ON OFF control of the H R HEATER and P R HEATER is as follows l 2 7 11 4 Control in PRINTING Mode FUSER control temperature when in PRINTING mode is established by the setting ...

Page 148: ...P mode HEAT ROLL and PRESSURE ROLL expand by the heat of H R HEATER and P R HEATER because it becomes the condition that it gains fixed pressure and the contact position of HEAT ROLL and PRESSURE ROLL is changed by doing FUSER skidding for about 0 5 seconds in about every 1 minute 2 7 11 7 MAIN FUSER ASSY Life Detection Control Life detection The life of the MAIN FUSER ASSY is affected by the numb...

Page 149: ...IN board the printer manages to process color image data at a higher speed than ever For communication with the host the printer has a built in parallel interface and network interface 10BASE T 100BASE TX See 2 69 for the circuit board and Figure 2 70 for the C287MAIN board circuit diagram As for LP 8500CPD Script 3 International Font ROM module is installed to socket B and for socket C PostScript...

Page 150: ...EPSON AcuLaser C8500 Revision C Operating Principles 2 73 Figure 2 71 C287MAIN Board Circuit Diagram Cooling fan ...

Page 151: ... directly attached 2 7 AD9561 IC7 8 bit PWM controller directly connected to E05B64 5 7 IC61C632A IC25 S RAM 1M bit Directly connected to E05B79 5 7 X25128SI IC21 128K bit EEPROM which stores vari ous printer setting information 4 7 SG 8002 CRU4 Video clock operating at 41 1698MHz E05B79 5 7 SG 8002 CRU2 Video clock operating at 80 000MHz 5 7 MA 406 CR1 Master clock operating at 66 6666MHz CPU SDR...

Page 152: ...000 MHz Network circuit 7 7 PE 68517 T1 Transistor 7 7 RTC 4543 IC50 Realtime clock 4 7 ROM bus CN6 A connector for CS 6500 Connect to E05B511 ASIC ROM Bus 2 7 P bus CN1 A connecotor for harddisk Connect to E05B51 ASIC 1 7 Table 2 12 C287MAIN Board Major Components Components Location Function Refer to ...

Page 153: ...C H A P T E R 3 DISASSEMBLY ASSEMBLY ADJUSTMENT ...

Page 154: ...ful not to get your hands and clothes caught in the rotating parts such as rollers and cooling fans 2 Never touch any electrical terminal or high voltage components such as HVPS and LVPS C A U T I O N When servicing avoid handling any parts forcibly Doing so might damage the parts and cause printer malfunction Various types of screws are used to assemble the printer and wrong usage might crush tap...

Page 155: ...k the program ROM version and update it if necessary Refer to Section 3 2 3 Print several status sheets and check print quality Send a few pages of data from the host computer and check for proper functions of the printer 3 2 Disassembly Assembly Procedures This section describes procedures for disassembling assembling the printer Unless otherwise specified assembly can be performed by reversing t...

Page 156: ...d its front side Right Right hand side viewing the printer toward its front side Screws are mentioned with descriptions including mounting location color feature thread part length and so on The number in drawing corresponds to the step number in the section Fasten the screws in the drawings using a Philips screw driver if no instruction is given If black arrows are shown with numbers they show th...

Page 157: ...own tray OPERATION PANEL Control panel FRONT COVER Front cover FRONT MID COVER Duplex Unit slot cover Universal paper cassette Paper cassette STOPPER COVER Stopper RIGHT COVER ASSY Right cover MSI ASSY MP tray EXTENSION TRAY Expansion tray MAIN P H ASSY Paper path unit Unit C Parallel I F Connector Interface card slot cover FILTER ASSY EXIT UPPER ASSY Output path cover Cover A FUSER ASSY Fuser uni...

Page 158: ...w the instructions below to update the program ROM using a standard parallel interface NOTE This method is used for updating a rcc file In case of updating a crb file refer to Section 1 5 5 PREPARATION Copy the data file program ROM source file file name RCC in the route directory HDD NOTE The personal computer to be used should be able to send binary data from DOS prompt via a parallel interface ...

Page 159: ...gram ROM source to the socket B of the CONTROLLER PWB NOTE Leave the ROM module in the socket P of the CONTROLLER PWB as it is 2 Set the ROM module in which the program is to be written in the socket A of the CONTROLLER PWB NOTE Format this ROM module in the way describe in Section 3 2 3 3 3 Turn the printer on while pressing the On Line Alt and Enter buttons Keep the buttons down until proceeding...

Page 160: ...ve the ROM module in the socket P of the CONTROLLER PWB as it is 2 Turn the printer on while pressing down the Alt Item Value and Enter buttons and keep the buttons down until instructed to release them The LCD and all the LED lamps on the control panel come on and the message bellow appears Numeric is shown in place of and starts increasing then the engine initialization begins When the printer i...

Page 161: ...nnect the printer and PC with a parallel cable 2 Turn the printer on while pressing the On Line Alt Item and Value buttons 3 Wait for the LCD to indicate the message Please sed EFU data 4 Start Windows 95 and select AL C8500 for Set as Default Then drag the mechanical controller firmwaredata to POW 5 Start MS DOS and type V1_03_12 MOT LPT1 B on the MS DOS prompt 6 When the printer LCD indicates ty...

Page 162: ...ER ASSY 3 Remove 2 screws gold with a washer 8mm securing the right and left COVER SUPPORTs 4 Remove 2 screws black tapped 10mm securing the FRONT COVER ASSY and right and left HINGE PLATES Then remove the FRONT COVER ASSY and right and left HINGE PLATES Figure 3 2 Front Cover Assy Removal 3 2 5 2 FRONT MID COVER PL1 1 6 Removal 1 Remove the UNIVERSAL CASSETTE 2 Remove 2 screws silver cup head 8 m...

Page 163: ...IVERSAL CASSETTE See Section 3 2 6 1 2 Remove 2 screws silver cup head 8mm securing the FRONT LOWER COVER and remove the FRONT LOWER COVER Figure 3 4 FRONT LOWER COVER Removal Figure 3 5 Front Lower Cover Installation C H E C K P O I N T When installing the FRONT LOWER COVER fit the front edge to 4 hooks in the frame to set the cover to the correct position ...

Page 164: ...Then lift up the rear end of the TOP COVER ASSY bring the assembly to the front rotating it clockwise while supporting it by its front left part and separate the assembly from the printer body 4 Remove the OPERATION PANEL from the TOP COVER ASSY See Section 3 2 5 12 Figure 3 6 TOP COVER ASSY Removal C H E C K P O I N T When installing the TOP COVER ASSY be sure to fasten the 2 screws at the back t...

Page 165: ...ON LEVER See Section 3 2 11 1 6 Remove the IBT INNER COVER ASSY See Section 3 2 5 6 NOTE As a result of the next step the FRONT COVER ASSY will be supported by the right hinge and right COVER SUPPORT only Therefore be careful not to add excess force to the FRONT COVER ASSY 7 Remove 1 screw gold with a washer 8mm fixing the COVER SUPPORT in the FRONT COVER ASSY to the left part of the printer body ...

Page 166: ...NER COVER ASSY PL1 1 14 Removal 1 Open the FRONT COVER 2 Remove the DRUM CARTRIDGE See Section 3 2 9 1 3 Remove the TENSION LEVER See Section 3 2 11 1 4 Remove 2 screws black cup head 6 mm securing the IBT INNER COVER ASSY Then remove the IBT INNER COVER ASSY by lifting it up Figure 3 8 IBT INNER COVER ASSY Removal ...

Page 167: ... UNDER COVER ASSY See Section 3 2 5 6 NOTE As a result of the next step the FRONT COVER ASSY will be supported by the left hinge and left COVER SUPPORT only Therefore be careful not to add excess force to the FRONT COVER ASSY 6 Remove 1 screw gold with a washer 8mm fixing the COVER SUPPORT in the FRONT COVER ASSY to the right part of the printer body 7 Remove 2 screws silver cup head 6mm securing ...

Page 168: ...crews silver cup head 8mm securing the REAR COVER ASSY and remove the REAR COVER ASSY Figure 3 10 REAR COVER ASSY Removal C H E C K P O I N T When installing the REAR COVER ASSY be sure to fasten the top 2 screws to secure the both TOP COVER ASSY and REAR COVER ASSY Pay special attention to the left screw Fasten the screw with the TOP COVER ASSY securely pressed down so that the rib in the TOP COV...

Page 169: ...and remove it by pulling it upward Figure 3 11 FILTER ASSY Removal 3 2 5 10 LEFT LOWER COVER PL1 1 40 Removal 1 Take the UNIVERSAL CASSETTE out 2 Remove the FRONT LOWER COVER See Section 3 2 5 3 3 Remove the REAR COVER ASSY See Section 3 2 5 8 4 Remove 2 screws silver knurled 8mm securing the LEFT LOWER COVER Then shift the LEFT LOWER COVER forward to remove it Figure 3 12 LEFT LOWER COVER Removal...

Page 170: ... will remain connected to the printer Therefore be careful not to move the cover too away from the printer 1 Remove the TOP COVER along with the OPERATION PANEL See Section 3 2 5 4 NOTE In the following step be careful not to break the hooks in the OPERATION PANEL 2 Using the 4 hooks in the OPERATION PANEL and remove the panel from the TOP COVER ASSY by pulling it upward 3 Disconnect the connector...

Page 171: ...bly Assembly Adjustment Disassembly Assembly Procedures 3 19 3 2 5 13 RIGHT LOWER COVER PL1 1 50 Removal 1 Remove 3 screws silver cup head 6 mm securing the RIGHT LOWER COVER and remove RIGHT LOWER COVER Figure 3 15 RIGHT LOWER COVER Removal ...

Page 172: ...L CASSETTE PL2 1 1 Removal NOTE In the following step be sure to handle the UNIVERSAL CASSETTE with the both hands so you do not drop the UNIVERSAL CASSETTE 1 Draw out the UNIVERSAL CASSETTE lift it up by its front edge and then keeping the cassette lift up take the tray all the way to remove it Figure 3 16 UNIVERSAL CASSETTE Removal ...

Page 173: ...NUBBER where paper is placed 2 Remove 2 screws black tapped 8mm securing the FRONT GUIDE ASSY and remove the FRONT GUIDE ASSY 3 Using a tool such as pliers release the hook securing the FRONT SNUBBER SUPPORT and remove the SNUBBER SUPPORT Then remove the FRONT SNUBBER Figure 3 17 FRONT SNUBBER Removal C H E C K P O I N T When installing the FRONT SNUBBER be sure to align the positioning hole of th...

Page 174: ...4 Push down the BOTTOM PLATE ASSY to lock it at the bottom 5 Turn the UNIVERSAL CASSETTE over and remove 5 screws gold tapped 8mm securing the CASSETTE BOTTOM COVER Then remove the CASSETTE BOTTOM COVER Figure 3 18 END GUIDE SECTOR GEAR Removal 1 6 Remove the SECTOR GEAR SPRING from the CASSETTE HOUSING and SECTOR GEAR 7 Release the SECTOR GEAR from the swivel peg in the UNIVERSAL CASSETTE and sli...

Page 175: ...hat the REAR GUIDE will not drop 11 Remove 1 screw gold tapped 6 mm securing the REAR GUIDE PLATE R and remove the REAR GUIDE PLATE R and the REAR GUIDE ASSY NOTE In the following step CASSETTE N F SPRINGS will spring out Therefore be careful not to lose them 12 Moving the PLATE LINK free the BOTTOM PLATE ASSY from the lock and open it Then slide the END GUIDE to the right and remove it Figure 3 2...

Page 176: ... the TURN COVER STOPPER to the main body 4 Pushing the peg at the front edge of the TURN CHUTE UP ASSY with a tool like a screw driver turn the TURN CHUTE UP ASSY to the right to release its rear peg and remove the TURN CHUTE UP ASSY 5 Remove the R H LOWER BRACKET NOTE In the next step be careful not to damage the hinge part of the TURN IN CHUTE 6 Press the hinge at the rear part of the TURN IN CH...

Page 177: ...EPSON AcuLaser C8500 Revision C Disassembly Assembly Adjustment Disassembly Assembly Procedures 3 25 Figure 3 22 TURN IN CHUTE Removal 2 4 TURN CHUTE UP ASSY R H LOWER BRACKET ...

Page 178: ...ith a washer 6 mm securing the TURN COVER STOPPER 7 Remove 2 screws silver cup head 6 mm securing the TURN CHUTE and remove it by lifting up its lower part 8 Remove the E ring fixing the TURN ROLL ASSY 9 Shift the TURN FRONT BEARING to the rear to release it from the frame 10 Shift the TURN ROLL ASSY forward to release its rear end from the TURN CLUTCH turn the rear end to the right and remove the...

Page 179: ...ver cup head 6 mm securing the TRAY SENSOR BRACKET and remove the TRAY SENSOR BRACKET NOTE In the following step be careful with the metal plate as you maybe hurt with its sharp edge 4 Insert your hand in the UNIVERSAL CASSETTE slot release the hook on the FEED ROLL and remove the FEED ROLL Figure 3 24 FEED ROLL Removal C H E C K P O I N T When installing the FEED ROLL make sure the arrow marked o...

Page 180: ...mm securing the OPTION BRACKET and separate the OPTION BRACKET from the printer body NOTE When installing the OPTION BRACKET in the following step be careful with its sharp edges Remove the bracket if necessary 3 Remove the screw silver cup head 6 mm securing the FEED SOLENOID and remove the FEED SOLENOID Figure 3 25 FEED SOLENOID Removal C H E C K P O I N T Make sure the protrusion on the FEED GE...

Page 181: ...g the TRAY SENSOR BRACKET and remove the TRAY SENSOR BRACKET 10 Bring the TURN ROLL to the bottom side shift the TURN ROLL ASSY to the front to release its rear end from the frame and remove the TURN ROLL ASSY by shifting it to the bottom rear 11 Follow the steps below to remove the FEED ROLL ASSY 11 1 Shift the FEED ROLL ASSY to the front to release its rear end from the frame 11 2 Move the rear ...

Page 182: ...ted to the printer body with a harness Therefore do not move the SIZE BRACKET ASSY away from the printer 3 Remove 2 screws silver cup head 6 mm securing the SIZE BRACKET ASSY and separate the SIZE BRACKET ASSY from the printer body 4 Disconnect the connector CN1 for the SIZE SWITCH ASSY and remove the SIZE BRACKET ASSY 5 Remove 1 screw black cup head 12 mm securing the SIZE SWITCH ASSY and remove ...

Page 183: ... Remove 1 screw silver cup head 6 mm securing the TRAY SENSOR BRACKET and remove the TRAY SENSOR BRACKET See Section 3 2 7 3 4 Disconnect the connector P J107 5 Release the hook on the CASSETTE N P SENSOR from the CASSETTE SENSOR BRACKET and remove the CASSETTE N P SENSOR Figure 3 28 CASSETTE N P SENSOR ASSY Removal C H E C K P O I N T When installing the CASSETTE N P SENSOR ASSY route the harness...

Page 184: ...ENSOR Figure 3 29 LOW PAPER SENSOR Removal 3 2 7 9 TRAY NO PAPER SENSOR PL3 1 9 Removal 1 Remove the UNIVERSAL CASSETTE See Section 3 2 6 1 2 Remove the FRONT MID COVER See Section 3 2 5 2 3 Remove CASSETTE N P SENSOR ASSY See Section 3 2 7 7 4 Disconnect the connector P J107 for the TRAY NO PAPER SENSOR and remove the harness for the TRAY NO PAPER SENSOR 5 Release the hooks securing the TRAY NO P...

Page 185: ...tally Figure 3 31 MSI REGI HIGH ASSY Removal 3 2 8 2 MSI GUIDE SWITCH PL4 1 18 Removal 1 Draw out the MSI REGI HIGH ASSY NOTE In the following step remove the MSI FEED ASSY if necessary 2 Disconnect the connector P J205 3 Using a standard screw driver push the front arm of the MSI TRAY HOUSING to the rear to free the lock for the arm from the MSI BASE FRAME 4 Release the rear arm part from the MSI...

Page 186: ...P J113B that connect the MSI ASSY and MAIN P H FRAME ASSY 3 Remove 2 screws gold tapped 8 mm securing the MSI ASSY 4 Remove 2 screws gold tapped 10 mm securing the MSI EARTH WIRE to the MAIN P H ASSY and remove the MSI ASSY Figure 3 33 MSI ASSY Removal C H E C K P O I N T When installing the MSI ASSY make sure the MSI CLUTCH gear in the MSI ASSY and PRE REGI GEAR1 in the MAIN P H ASSY are properly...

Page 187: ...rews gold tapped 8 mm securing the MSI FEED ASSY and separate the MSI FEED ASSY from the MSI BASE ASSY Figure 3 34 MSI BASE ASSY Removal 3 2 8 5 MSI FEED ASSY PL4 1 30 Removal 1 Draw out the MSI REGI HIGH ASSY 2 Remove 6 screws gold tapped 8 mm securing the MSI FEED ASSY 3 Disconnect 2 connectors P J201 and P J202 connecting the MSI FEED ASSY and MAIN P H FRAME ASSY and remove the MSI FEED ASSY Fi...

Page 188: ...ve the MAIN P H FRAME ASSY Figure 3 36 MAIN P H FRAME ASSY Removal 3 2 8 7 BOTTOM PLATE SENSOR PL4 2 10 Removal 1 Draw out the MSI REGI HIGH ASSY 2 Remove the MSI BASE ASSY See Section 3 2 8 4 3 Remove the LIFT UP FRAME ASSY See Section 3 2 8 8 4 Remove the BOTTOM PLATE by opening it to the right 5 Lift up the LIFT DOWN ACTUATOR and hold it there 6 Disconnect the connector P J210 7 Release the hoo...

Page 189: ...emove 3 screws gold tapped 8 mm securing the LIFT UP FRAME ASSY and remove the LIFT UP FRAME ASSY Figure 3 38 LIFT UP FRAME ASSY Removal 3 2 8 9 EMPTY SENSOR PL4 3 5 Removal 1 Draw out the MSI REGI HIGH ASSY 2 Remove the MSI FEED ASSY See Section 3 2 8 5 3 Release the hooks for the EMPTY SENSOR from the PRE REGI CHUTE and remove the EMPTY SENSOR Figure 3 39 EMPTY SENSOR Removal C H E C K P O I N T...

Page 190: ... Section 3 2 8 5 3 Remove 1 screw gold tapped 8 mm securing the PITCH SENSOR and remove the PITCH SENSOR Figure 3 40 PITCH SENSOR Removal 3 2 8 11 MSI FEED FRAME ASSY PL4 3 20 Removal 1 Draw out the MSI REGI HIGH ASSY 2 Remove the MSI FEED ASSY See Section 3 2 8 5 3 Remove 3screw gold tapped 8 mm securing the MSI FEED FRAME ASSY and remove the MSI FEED FRAME ASSY Figure 3 41 MSI FEED FRAME ASSY Re...

Page 191: ...RAME ASSY See Section 3 2 8 11 4 Remove the RTD SPRING from the MSI FEED TOP FRAME and RTD SUPPORT 5 Remove 1 screw silver 6 mm securing the LEVEL SENSOR BRACKET 6 Release the hooks for the LEVEL SENSOR from the LEVEL SENSOR BRACKET and remove the LEVEL SENSOR Figure 3 42 LEVEL SENSOR Removal C H E C K P O I N T When installing the SENSOR BRACKET align the protrusion on the MSI FEED TOP FRAME and ...

Page 192: ...R and remove the MSI 1 GEAR clip and BEARING 8 7 Lifting up the front part of the P REGI ROLL ASSY slide the P REGI ROLL ASSY forward to release the rear end and remove the P REGI ROLL ASSY by pulling it out to the upper rear Figure 3 43 P REGI ROLL ASSY REMOVAL 3 2 8 14 PRE REGI CLUTCH ASSY PL4 4 49 Removal 1 Pull out the MSI REGI HIGH ASSY 2 Remove the MSI REGI HIGH ASSY See Section 3 2 8 1 3 Re...

Page 193: ...LUTCH ASSY PL4 4 5 Removal 1 Pull out the MSI REGI HIGH ASSY 2 Remove the MSI REGI HIGH ASSY See Section 3 2 8 1 3 Remove the MAIN P H FRAME ASSY See Section 3 2 8 6 4 Disconnect the connector P J94 5 Remove the E ring securing the REGI CLUTCH ASSY and remove the REGI CLUTCH ASSY Figure 3 45 REGI CLUTCH ASSY Removal ...

Page 194: ...ee Section 3 2 8 1 3 Remove the MAIN P H FRAME ASSY See Section 3 2 8 6 4 Remove the REGI CLUTCH ASSY See Section 3 2 8 15 5 Remove the REGI RUBBER ROLL BEARING 6 Remove the E ring securing the REGI GEAR remove the REGI GEAR and REGI RUBBER ROLL BEARING 7 Pull the REGI RUBBER ROLL ASSY all the way forward then lift the rear and remove by pulling out diagonally to the rear Figure 3 46 REGI RUBBER R...

Page 195: ...LUTCH ASSY See Section 3 2 8 15 5 Remove the REGI RUBBER ROLL ASSY See Section 3 2 8 16 NOTE Be careful not to drop or lose the P REGI SPRING 1 or P REGI SPRING while performing the following steps 6 Remove the E ring securing the REGI GEAR remove the REGI GEAR and REGI METAL ROLL bearing 7 Remove the E ring securing the REGI METAL BEARING and remove the REGI METAL BEARING 8 Lift the rear of the R...

Page 196: ...8 18 IBT REGI CHUTE PL4 4 14 Removal 1 Pull out the MSI REGI HIGH ASSY 2 Remove the MSI REGI HIGH ASSY See Section 3 2 8 1 3 Remove the MAIN P H FRAME ASSY See Section 3 2 8 6 4 Remove the 2 screws gold tapping 6mm securing the IBT REGI CHUTE and remove the IBT REGI CHUTE Figure 3 48 IBT REGI CHUTE Removal ...

Page 197: ...GH ASSY 2 Remove the MSI REGI HIGH ASSY See Section 3 2 8 1 3 Remove the MAIN P H FRAME ASSY See Section 3 2 8 6 4 Remove the screw gold tapping 8mm securing the P H SENSOR ASSY and remove the P H SENSOR ASSY 5 Disconnect the REGI SENSOR connector P J93 6 Remove the screw silver 6mm securing the REGI SENSOR and remove the REGI SENSOR Figure 3 49 REGI SENSOR Removal ...

Page 198: ... HIGH ASSY 2 Remove the MSI REGI HIGH ASSY See Section 3 2 8 1 3 Remove the MAIN P H FRAME ASSY See Section 3 2 8 6 4 Remove the screw gold tapping 8mm securing the P H SENSOR ASSY and remove the P H SENSOR ASSY 5 Disconnect OHP SENSOR connector P J98 6 Remove the screw silver 6mm securing the OHP SENSOR and remove the OHP SENSOR Figure 3 50 OHP SENSOR Removal ...

Page 199: ... NOTE Be careful not to touch the surface of the drum when performing the following NOTE After removing be sure to lay the DRUM CARTRIDGE in its horizontal position in a safe place not exposed to light 3 Turn the DRUM CARTRIDGE lock lever to the release position Pull out the DRUM CARTRIDGE pull the upper belt straight out and remove the DRUM CARTRIDGE Figure 3 51 DRUM CARTRIDGE Removal C H E C K P...

Page 200: ... Open the FRONT COVER ASSY NOTE After removing be sure to lay the WASTE TONER BOX in its horizontal position in a safe place 2 Lift the waste tone box hook lever and remove the WASTE TONER BOX by pulling straight out Figure 3 52 WASTE TONER BOX Removal C H E C K P O I N T After mounting make sure the waste tone box is securely hooked in place ...

Page 201: ...t to pull too far apart when performing the following NOTE Be careful not to touch the window of the ROS ASSY window from which laser beam is emitted or working parts such as the motor shaft when performing the following steps 4 Remove the 4 screws black w collar 12mm securing the ROS ASSY and carefully remove the ROS ASSY from the printer 5 Disconnect the connector P J123 on the bottom of the ROS...

Page 202: ... J81 remove the harness from the clamp and pull out the connector J81 from the hole through which the harness runs NOTE Be careful not to touch the IBT BELT ASSY or Magnet Roll of the Developer Assy when performing the following 6 Remove the E ring securing the ADC SENSOR ASSY 7 Slide the ADC sensor to the rear and remove the front of the shaft from the frame Then remove the rear end of the shaft ...

Page 203: ...O HARNESS by removing them from the clamp NOTE Be careful not to damage the IBT BELT ASSY harnesses XL RAIL ASSY and the Magnet Roll of the Developer Assy while performing the following NOTE Be careful not to touch the IBT BELT ASSY of Magnet Roll surface while performing the following 6 Remove the 4 screws silver w collar 6mm securing XL RAIL ASSY and remove the XL RAIL ASSY Figure 3 55 XL RAIL A...

Page 204: ...e XL RAIL and remove the WASTE TONER SENSOR Figure 3 56 WASTE TONER SENSOR Removal 3 2 9 7 TONER BOX SENSOR PL6 1 43 Removal 1 Remove the TOP COVER ASSY See Section 3 2 5 4 2 Remove the DRUM CARTRIDGE See Section 3 2 9 1 3 Remove the ROS ASSY See Section 3 2 9 3 4 Remove the XL RAIL ASSY See Section 3 2 9 5 5 Free the TONER BOX SENSOR harness by removing it from the clamp 6 Disconnect the TONER BO...

Page 205: ...R ASSY See Section 3 2 5 4 2 Remove the DRUM CARTRIDGE See Section 3 2 9 1 3 Remove the ROS ASSY See Section 3 2 9 3 4 Remove the XL RAIL ASSY See Section 3 2 9 5 5 Free the ERASE LAMP ASSY by pulling its harness through the hole 6 Unhook the ERASE LAMP ASSY from the XL RAIL with a screwdriver etc and remove the ERASE LAMP ASSY Figure 3 58 ERASE LAMP ASSY Removal ...

Page 206: ...y the generic term Toner Cartridge 1 Open the FRONT COVER ASSY 2 Lift the ROTARY LATCH LEVER turn the ROTARY KNOB ASSY and move the Toner Cartridge to the replacement position NOTE After removing be sure to lay the Toner Cartridge in its horizontal position in a safe place 3 turn the Toner Cartridge to the replacement position and remove the Toner Cartridge Figure 3 59 Toner Cartridge Removal C H ...

Page 207: ...ction 3 2 9 1 Figure 3 60 DEVELOPER ASSY Removal 1 3 Remove the TENSION LEVER See Section 3 2 11 1 Figure 3 61 DEVELOPER ASSY Removal 2 4 Remove the INNER COVER ASSY See Section 3 2 5 5 Section 3 2 5 6 Section 3 2 5 7 5 Remove the TONER CARTRIDGE Mounted on the Developer Assy to be removed See Section 3 2 10 1 6 Free the harness by unhooking from the ROTARY LATCH ASSY 7 Remove the screw black w co...

Page 208: ...Y LATCH ASSY has been dismounted Be aware that the ROTARY FRAME ASSY can turn when the following step of the procedure NOTE After removing be sure to lay the Developer Assy in its horizontal position in a safe place 9 Slide the Developer Assy forward lift from the front and remove the Developer Assy Figure 3 62 DEVELOPER ASSY Removal 3 A D J U S T M E N T R E Q U I R E D After mounting be sure to ...

Page 209: ...the screw silver w collar 8mm securing the FAN DUCT Slide the FAN DUCT up unhook from the frame and remove the FAN DUCT together with the DEVE FAN 5 Disconnect the ROTARY SENSOR connector P J58 6 Remove the screw silver w collar 6mm securing the ROTARY SENSOR ASSY and remove the ROTARY SENSOR ASSY 7 Unhook the ROTARY SENSOR from the ROTARY SENSOR PLATE and remove the ROTARY SENSOR Figure 3 63 ROTA...

Page 210: ...tion 3 2 10 3 11 Remove the FUSER ASSY See Section 3 2 12 1 12 Remove the EXIT UPPER ASSY See Section 3 2 13 2 13 Remove the EXIT LOWER ASSY See Section 3 2 13 3 14 Remove the ROTARY MOTOR DRIVE PWB See Section 3 2 14 8 15 Remove the ROTARY MOTOR ASSY See Section 3 2 14 7 16 Remove the DISPENSE CLUTCH ASSY See Section 3 2 14 9 17 Remove the LVPS See Section 3 2 16 1 18 Remove the FUSER DRIVE ASSY ...

Page 211: ... falling from the printer frame while performing the following step by leaving the front of the ROTARY FRAME ASSY supported 24 Remove the front ROTARY FRONT BEARING of the ROTARY FRAME ASSY 25 After removing the front shaft of the ROTARY FRAME ASSY from the slot of the printer frame slide the ROTARY FRAME ASSY forward remove the rear shaft from the printer frame lift the ROTARY FRAME ASSY from the...

Page 212: ...ITCH L connector P 197 and free the harness by disconnecting from the CART SENSOR PLATE 3 Remove the screw gold tapping 8mm securing the CART SENSOR ASSY and remove the CART SENSOR ASSY 4 Remove the screw gold tapping 8mm securing the CARTRIDGE SENSOR and remove the CARTRIDGE SENSOR Figure 3 66 CARTRIDGE SENSOR Removal C H E C K P O I N T Securely hook the harness in the hooks of the USED SENSOR P...

Page 213: ...ly Procedures 3 61 3 2 11 IBT 3 2 11 1 TENSION LEVER PL8 1 21 Removal 1 Open the FRONT COVER ASSY 2 Turn the lever to the tension release position Remove the screw Black w washer 12mm securing the TENSION LEVER 3 Pull out the TENSION LEVER and remove Figure 3 67 TENSION LEVER Removal ...

Page 214: ...ND BTR ASSY See Section 3 2 11 4 7 Pull out the MSI REGI HIGH ASSY 8 Disconnect the ADC SENSOR ASSY connector P J81 and connector P J54 from the TR0 SENSOR Then remove the harness from clamps 9 Remove the 4 screws silver w collar 8mm securing the PANEL HIGH ASSY and remove the PANEL HIGH ASSY NOTE Make sure the IBT BELT ASSY does not touch any other part while performing the following Never tough ...

Page 215: ... CLEANER ASSY Do not allow the Cleaning Blade to come in contact with any other parts NOTE After removing the BELT CLEANER ASSY in the following procedure place it on paper in case toner is spilled 2 Pull the shaft underneath the BELT CLEANER ASSY toward the rear undo the lock and remove the BELT CLEANER ASSY by sliding the front to the left Figure 3 69 BELT CLEANER ASSY Removal C H E C K P O I N ...

Page 216: ...the roller of the 2ND BTR ASSY or allow the roller of the 2ND BTR ASSY to come in contact with any other parts while performing the following 3 Pull out and remove the 2ND BTR ASSY from the left side of the printer Figure 3 70 2ND BTR ASSY Removal C H E C K P O I N T When mounting be sure to push the 2ND BTR ASSY firmly in place C A U T I O N After replacing the 2ND BTR ASSY with a new part enter ...

Page 217: ...8 Remove the FUSER ASSY See Section 3 2 12 1 9 Remove the BELT CLEANER ASSY See Section 3 2 11 4 10 Remove the 2ND BTR ASSY See Section 3 2 11 4 11 Remove the BTR CAM CLUTCH See Section 3 2 11 9 12 Remove the HVPS See Section 3 2 16 2 13 Remove the PROCESS DRIVE ASSY See Section 3 2 14 6 14 Pull out the MSI REGI HIGH ASSY 15 Remove the TRANSFER HIGH ASSY See Section 3 2 11 2 16 Remove the 2 screws...

Page 218: ...ns and may be omitted for printers without CRUM specifications 17 Remove the RIGHT COVER ASSY See Section 3 2 5 11 18 Remove the CONTROLLER PWB See Section 3 2 17 1 19 Remove the CONT CHASSIS ASSY See Section 3 2 17 3 20 Remove the screw silver w collar 6mm securing the CRUM ASSY and remove the CRUM ASSY from inside the printer 21 Remove the screw silver w collar 8mm securing the AUGER HIGH ASSY a...

Page 219: ... BELT ASSY without getting dirty while performing the work 8 Remove the TRANSFER HIGH ASSY See Section 3 2 11 2 NOTE Stand the TRANSFER HIGH ASSY while performing the work while performing the following 9 Mount the TENSION LEVER and lift the PUSH IN LEVER while turning 10 Spread the arms securing the PUSH IN SHAFT of the TRANSFER ASSY to the left right and remove the PUSH IN SHAFT 11 Turn the TENS...

Page 220: ...ASSY and insert one of the other screws securing the RAIL into the hole on the side and lock the metal cam 17 Remove the LIB at the bottom of the IBT BELT ASSY from the TRANSFER ASSY and remove the IBT BELT ASSY to the forward Figure 3 74 IBT BELT ASSY Removal 2 Figure 3 75 IBT BELT ASSY Removal 3 C H E C K P O I N T Be careful not to damage or dirty the IBT BELT ASSY while mounting Be sure to cle...

Page 221: ... Remove the TRANSFER HIGH ASSY See Section 3 2 11 2 9 Remove the 2 screws black w collar 10mm securing the IBT R H RAIL remove the COLLAR and get down the IBT R H RAIL 10 Disconnect the TR0 SENSOR connector P J57 11 Remove the screw black w collar 10mm securing the TR0 SENSOR and remove the TR0 SENSOR Figure 3 76 TR0 SENSOR Removal 3 2 11 9 BTR CAM CLUTCH PL8 3 4 Removal 1 Remove the REAR COVER AS...

Page 222: ...embly Procedures 3 70 3 2 12 Fusing 3 2 12 1 FUSER ASSY PL9 1 1 Removal 1 Remove the EXIT TRAY ASSY See Section 3 2 13 1 2 Remove the FRONT MID COVER let loose fully the drop preventing screw 3 Pull out the FUSER ASSY and remove by lifting diagonally Figure 3 78 FUSER ASSY Removal ...

Page 223: ...9 of the MAIN FUSER ASSY 4 Remove the 3 screws gold w washer 8mm securing the MAIN FUSER ASSY Remove the MAIN FUSER ASSY Figure 3 79 MAIN FUSER ASSY Removal C A U T I O N After replacing the MAIN FUSER ASSY with a new part enter the maintenance mode to reset the counter Fuser Counter Clear For details see Chapter 6 When installing the MAIN FUSER ASSY make sure to set it from directly above If not ...

Page 224: ...y Assembly Procedures 3 72 3 2 12 3 UPPER GUIDE ASSY PL9 2 20 Removal 1 Remove the EXIT TRAY ASSY See Section 3 2 13 1 2 Pull out the FUSER ASSY 3 Remove the 2 screws silver 6mm securing the UPPER GUIDE ASSY and remove the UPPER GUIDE ASSY Figure 3 80 UPPER GUIDE ASSY Removal ...

Page 225: ...nd FUSER REAR COVER will no longer be secured Be careful not to allow the covers to fall 6 Remove the 2 screws gold w washer 8mm and 2 screws silver 6mm total of 4 screws securing the FUSER UPPER ASSY and remove the FUSER UPPER ASSY NOTE Be careful not to damage the surface of the HEAT ROLL with screwdriver etc when removing the TEMP SENSOR ASSY while performing the following 7 Remove the screw si...

Page 226: ...TE The connector P JF250 for the H R HEATER and P R HEATER is tightly connected Be careful not to damage these heaters when disconnecting the connector while performing the following 8 Free the wire and harness by unhooking from the FUSER REAR COVER Disconnect the connector P JF250 for the H R HEATER and P R HEATER NOTE The gear is no longer secured when the FUSER REAR COVER is removed Be careful ...

Page 227: ... NOTE The connector P JF250 for the H R HEATER and P R HEATER is tightly connected Be careful not to damage the heaters when disconnecting the connector in the following step 8 Free the wire and harness by unhooking from the FUSER REAR COVER Disconnect the connector P JF250 for the H R HEATER and P R HEATER NOTE The gear is no longer secured when the FUSER REAR COVER is removed Be careful not to a...

Page 228: ...TOR does not interfere with the FUSER EXIT SENSOR and fall out while mounting the LOWER GUIDE ASSY 5 Remove the screw silver 6mm securing the LOWER GUIDE ASSY Slide the LOWER GUIDE ASSY forward and remove Figure 3 84 LOWER GUIDE ASSY Removal 3 2 12 8 FUSER EXIT SENSOR 1 PL9 2 3 Removal 1 Remove the EXIT TRAY ASSY See Section 3 2 13 1 2 Pull out the FUSER ASSY 3 Remove the MAIN FUSER ASSY See Secti...

Page 229: ...Y See Section 3 2 13 1 2 Pull out the FUSER ASSY 3 Remove the MAIN FUSER ASSY See Section 3 2 12 2 4 Remove the UPPER GUIDE ASSY See Section 3 2 12 3 5 Remove the LOWER GUIDE ASSY See Section 3 2 12 7 6 Disconnect the FUSER EXIT SENSOR 2 connector P J 722 7 Unhook FUSER EXIT SENSOR 2 from the FUSER BOTTOM PLATE and remove Figure 3 86 FUSER EXIT SENSOR 2 Removal TBK41ABFA ...

Page 230: ...2 5 7 Loosen the 2 screws for adjusting the front rear NIP width 8 Remove the H R RING securing the rear H R GEAR Remove the H R GEAR and rear H R BEARING 9 Remove the front H R RING and remove the front H R BEARING NOTE Be careful not to damage the surface of the HEAT ROLL while performing the following 10 Slide the HEAT ROLL to the rear and remove the front from the frame After doing so slide th...

Page 231: ...emove the HEAT ROLL See Section 3 2 12 10 10 Remove the FUSER BAFFLE ASSY See Section 3 2 12 20 11 Remove the screw gold 6mm securing the FUSER INLET PLATE and remove the FUSER INLET PLATE NOTE Be sure not to damage the surface of the PRESSURE ROLL while performing the following Lift the PRESSURE ROLL and remove together with the 2 front rear P R BEARINGS After doing so remove the P R BEARINGS fro...

Page 232: ...Remove the P R HEATER See Section 3 2 12 6 8 Remove the LOWER GUIDE ASSY See Section 3 2 12 7 9 Remove the 2 screws black w collar 8mm securing the FUSER BOTTOM PLATE remove the FUSER BOTTOM PLATE 10 Disconnect the connector P J721 P J722 from the FUSER EXIT SENSOR 1 2 unhook the harness from the FUSER BOTTOM PLATE and remove the TEMP SENSOR ASSY Figure 3 89 TEMP SENSOR ASSY Removal A D J U S T M ...

Page 233: ...FUSER FRONT RAIL 5 Remove the screw gold tapping 10mm securing EXCHANGE STOPPER F and remove EXCHANGE STOPPER F 6 Remove the screw gold tapping 10mm securing EXCHANGE STOPPER R and remove EXCHANGE STOPPER R NOTE Be careful not to damage the front rear hinges of the exchange cute while performing the following 7 Remove the EXCHANGE CHUTE by pulling straight out from the right side Figure 3 90 EXCHA...

Page 234: ...performing the following 5 Remove the 2 screws gold tapping 10mm securing the FUSER REAR RAIL Separate the FUSER TRAY ASSY and FUSER REAR RAIL together with the FUSER GEAR COVER 6 Disconnect the EXCHANGE SOLENOID connector P J74 NOTE The gear is no longer secured when the EXCHANGE BRACKET is removed Be careful not to allow the gear to fall out while performing the following 7 Remove the 2 screws g...

Page 235: ... FUSER REAR RAIL Separate the FUSER TRAY ASSY and FUSER REAR RAIL together with the FUSER GEAR COVER 5 Disconnect the CLEANER CAM SOLENOID connector P J62 and free the harness by removing from the clamp 6 Remove the 2 screws gold tapping 10mm securing INPUT BRACKET FT and remove INPUT BRACKET FT together with FUSER EARTH A etc 7 Remove the 2 screws gold tapping 10mm securing the CLEANER CAM SOLENO...

Page 236: ...ng 10mm securing the FUSER FRONT RAIL and remove the FUSER FRONT RAIL NOTE Be sure not to drop and lose the CLEANER CAM PIN when removing the CLEANER CAM in the following step of the procedure 6 Remove the E ring securing the CLEANER CAM Remove the CLEANER CAM CLEANER CAM PIN and CLN CAM BEARING F 7 Remove the CLEANER CAM ASSY together with CLN CAM BEARING F by pulling straight out from the rear 8...

Page 237: ... GEAR 6 Slide the EXIT KNOB GEAR to the rear and remove the EXIT ROLL PIN 7 Slide the front EXIT 1 BEARING to the rear and slide the front of the EXIT 1 ROLL ASSY to the right NOTE The rear EXIT 1 BEARING of the EXIT 1 ROLL ASSY remains but is not secured to the FUSER TRAY when the following step of the procedure is performed Be careful not to lose the EXIT 1 BEARING 8 Slide the EXIT 1 ROLL ASSY f...

Page 238: ...ing 10mm Lift and remove the HORIZONTAL CHUTE together with the FUSER PAPER GUIDE 3 Remove the 2 screws gold tapping 10mm securing the FUSER BOTTOM COVER Slide the FUSER BOTTOM COVER to the rear and remove 4 Unhook the FUSER IN HOLDER from the FUSER TRAY and remove 5 Disconnect the FUSER IN SENSOR connector P J117 6 Unhook the FUSER IN SENSOR from the FUSER TRAY and remove Figure 3 95 FUSER IN SEN...

Page 239: ...move the 2 screws securing the HORIZONTAL CHUTE gold tapping 10mm Lift and remove the HORIZONTAL CHUTE together with the FUSER PAPER ASSY 3 Remove the 2 screws gold tapping 10mm securing the FUSER BOTTOM COVER Slide the FUSER BOTTOM COVER to the rear and remove 4 Remove the FUSER CHUTE FAN from the FUSER TRAY 5 Disconnect the FUSER CHUTE FAN connector P J80 Figure 3 97 FUSER CHUTE FAN Removal ...

Page 240: ...m securing the NIP FRONT CAM and NIP REAR CAM to FUSER NIP SHAFT 9 Pull out the FUSER NIP SHAFT to the front remove the NIP REAR CAM NIP FRONT CAM and the front rear FUSER NIP BEARING and remove the FUSER NIP SHAFT 10 Let loose fully the NIP adjustment screw 11 Remove the 2 screws silver w collar 6mm securing the FUSER BAFFLE ASSY and remove the FUSER BAFFLE ASSY to the up Figure 3 98 FUSER BAFFLE...

Page 241: ... EXIT UPPER ASSY PL10 1 2 Removal 1 Open the EXIT UPPER ASSY NOTE Be careful not to damage the hinges of the EXIT UPPER ASSY when performing the following 2 Bend the front hinges of the EXIT UPPER ASSY inward remove the boss from the front of the EXIT LOWER ASSY and remove the hinge of the EXIT UPPER ASSY Then remove the rear hinge and remove the EXIT UPPER ASSY Figure 3 100 EXIT UPPER ASSY Remova...

Page 242: ...he 2 connectors P J111B P J161B of the EXIT LOWER ASSY 6 Remove the 5 screws black w collar 8mm securing the EXIT LOWER ASSY Lift and remove the EXIT LOWER ASSY Figure 3 101 EXIT LOWER ASSY Removal 3 2 13 4 EXIT 2 ROLL ASSY PL10 2 5 Removal 1 Remove the TOP COVER ASSY See Section 3 2 5 4 2 Remove the REAR COVER ASSY See Section 3 2 5 8 3 Remove the EXIT UPPER ASSY See Section 3 2 13 2 4 Remove the...

Page 243: ... REAR BEARING 4 Remove the EXIT 3 ROLL ASSY Figure 3 103 EXIT 3 ROLL ASSY Removal 3 2 13 6 FUSER FAN 1 PL10 2 15 Removal 1 Remove the REAR COVER ASSY See Section 3 2 5 8 2 Remove FRAME CLAMP PS 3 Disconnect the FUSER FAN 1 connector P J111B and free the harness by removing it from the clamp 4 Spread the hook on the frame that secures FUSER FAN 1 and remove FUSER FAN 1 Figure 3 104 FUSER FAN 1 Remo...

Page 244: ...tion 3 2 13 3 5 Disconnect the TOP EXIT SENSOR connector P J165 6 Unhook the TOP EXIT SENSOR and remove Figure 3 105 TOP EXIT SENSOR Removal 3 2 13 8 EXIT CHUTE SWITCH PL10 2 13 Removal 1 Remove the TOP COVER ASSY See Section 3 2 5 4 2 Remove the REAR COVER ASSY See Section 3 2 5 8 3 Remove the EXIT UPPER ASSY See Section 3 2 13 2 4 Remove the EXIT LOWER ASSY See Section 3 2 13 3 5 Disconnect the ...

Page 245: ...4 5 4 Remove the P H MOTOR ASSY See Section 3 2 14 4 5 Remove the screw silver w collar 6mm securing the MOTOR PWB BRACKET to the P H DRIVE ASSY and remove the MOTOR PWB BRACKET 6 Free the 2 wires by removing from the clamp of the P H DRIVE ASSY 7 Remove the 5 screws black w collar 10mm securing the P H DRIVE ASSY and remove the P H DRIVE ASSY together with the 2 MOTOR PWB SUPPORTS 8 Remove the 2 ...

Page 246: ...he FUSER ASSY See Section 3 2 12 1 3 Remove the FUSER MOTOR ASSY See Section 3 2 14 3 4 Remove the LVPS See Section 3 2 16 1 5 Remove the KL clip securing the AUGER HIGH ASSY inside the printer 6 Remove the 5 screws silver w collar 6mm securing the FUSER DRIVE ASSY and remove the FUSER DRIVE ASSY Figure 3 108 FUSER DRIVE ASSY Removal C H E C K P O I N T Be careful not to pinch the harness when mou...

Page 247: ...e FUSER MOTOR ASSY 3 Remove the 3 screws black w collar 4mm securing the FUSER MOTOR ASSY and remove the FUSER MOTOR ASSY Figure 3 109 FUSER MOTOR ASSY Removal 3 2 14 4 P H MOTOR ASSY Pl11 1 5 Removal 1 Remove the REAR COVER ASSY See Section 3 2 5 8 2 Remove the DRIVE MOTOR PWB See Section 3 2 14 5 3 Remove the 3 screws black w collar 4mm securing the P H MOTOR ASSY and remove the P H MOTOR ASSY F...

Page 248: ...TOR PWB SUPPORTS Figure 3 111 DRIVE MOTOR PWB Removal 3 2 14 6 PROCESS DRIVE ASSY PL11 1 10 Removal 1 Remove the REAR COVER ASSY See Section 3 2 5 8 2 Remove the HVPS See Section 3 2 16 2 3 Disconnect the 2 connectors P J51 P J52 of the PROCESS MOTOR ASSY and free the harness by removing from the clamp 4 Remove the 5 screws black w collar 8mm securing the PROCESS DRIVE ASSY and remove the PROCESS ...

Page 249: ...4 8 ROTARY MOTOR DRIVE PWB PL11 1 21 Removal 1 Remove the REAR COVER ASSY See Section 3 2 5 8 NOTE The ROTARY MOTOR PWB and printer remain connected by a harness Be careful not to pull too far apart while performing the following 2 Remove the screw silver w collar 8mm securing the ROTARY MOTOR DRIVE PWB and separate the ROTARY MOTOR DRIVE PWB from the printer 3 Disconnect the 3 connectors P J245 P...

Page 250: ...e DISPENSE CLUTCH ASSY to the notch in the printer frame hole and remove the DISPENSE CLUTCH ASSY Figure 3 115 DISPENSE CLUTCH ASSY Removal 3 2 14 10 DEVE CLUTCH ASSY PL11 1 23 Removal 1 Remove the REAR COVER ASSY See Section 3 2 5 8 2 Remove the FUSER ASSY See Section 3 2 12 1 3 Remove the FUSER MOTOR ASSY See Section 3 2 14 3 4 Remove the ROTARY MOTOR DRIVE PWB See Section 3 2 14 8 5 Remove the ...

Page 251: ...ENSION LEVER See Section 3 2 11 1 5 Remove the INNER COVER ASSY See Section 3 2 5 5 Section 3 2 5 6 Section 3 2 5 7 6 Remove the EXIT UPPER ASSY See Section 3 2 13 2 7 Remove the EXIT LOWER ASSY See Section 3 2 13 3 NOTE Be careful not to damage the DEVE TIE PLATE by getting it caught on the connector attached to the rear frame of the printer while performing the following 8 Remove the 4 screws bl...

Page 252: ...nnectors P J32 P J33 P J34 P J35 of the LVPS 3 Remove 2 of the 4 screws silver w collar 6 mm securing the LVPS and loosen the remaining 2 screws silver w collar 8mm 4 Lift the LVPS unhook the left hook and remove the LVPS Figure 3 118 LVPS Removal C H E C K P O I N T Be careful not to get the harness caught in the gears or on sheet metal when mounting Be sure to hook the left hook securely on the ...

Page 253: ...l 1 Remove the REAR COVER ASSY See Section 3 2 5 8 2 Remove the 6 connectors P J41 P J42 P JA P JC P JD P JF of the HVPS 3 Remove the 4 screws silver w collar 6mm securing the HVPS and remove the HVPS Figure 3 119 HVPS Removal C H E C K P O I N T Be careful not to get the harness caught in the gears or on sheet metal when mounting ...

Page 254: ...w collar 6mm securing the TOP COVER SWITCH and remove the TOP COVER SWITCH Figure 3 120 TOP COVER SWITCH 3 2 16 4 DEVE FAN PL13 1 5 Removal 1 Remove the REAR COVER ASSY See Section 3 2 5 8 2 Remove the DEVE FAN connector P J82 and free the harness by removing from the FAN DUCT 3 Spread the FAN DUCT hook securing the DEVE FAN and remove the DEVE FAN Figure 3 121 DEVE FAN Removal C H E C K P O I N T...

Page 255: ...SIS ASSY See Section 3 2 17 3 5 Remove the 12 connectors P J10 P J12 P J14 P J15 P J16 P J17 P J18 P J19 P J20 P J21 P J22 P J23 of the MCU PWB 6 Remove the 4 screws silver w collar 6 mm securing the MCU PWB and remove the MCU PWB Figure 3 122 MCU PWB Removal C A U T I O N When replacing the MCU PWB mount the new MCU PWB after removing the EEPROM U2 housing the NVM DATA from the MCU PWB that is no...

Page 256: ...Remove the RIGHT COVER ASSY See Section 3 2 5 11 3 Remove the CONTROLLER PWB See Section 3 2 17 1 4 Remove the CONT CHASSIS ASSY See Section 3 2 17 3 5 Disconnect the 4 connectors P J191 P J192 P J193 P J194 of FRONT COVER SWITCH R Unhook FRONT COVER SWITCH R from the frame push forward and remove Figure 3 123 FRONT COVER SWITCH R Removal C H E C K P O I N T Mount the FRONT COVER SWITCH R securely...

Page 257: ...ER See Section 3 2 11 1 4 Remove the INNER COVER ASSY See Section 3 2 5 5 Section 3 2 5 6 Section 3 2 5 7 5 Disconnect the connector P J197 of FRONT COVER SWITCH L and free the harness by unhooking it 6 Remove the screw silver w collar 6mm securing FRONT COVER SWITCH L remove the harness from the hole in the frame and remove FRONT COVER SWITCH L Figure 3 124 FRONT COVER SWITCH L Removal C H E C K ...

Page 258: ...ove the MSI REGI HIGH ASSY See Section 3 2 8 1 2 Disconnect the ENVIRONMENT SENSOR connector P J105 and free the harness by removing it from the clamp NOTE Be careful not to touch the IBT BELT ASSY surface while performing the following 3 RemovetheENVIRONMENTSENSORfromthe2PWBSUPPORTsecuring the ENVIRONMENT SENSOR Figure 3 125 ENVIRONMENT SENSOR Removal ...

Page 259: ... When removing the CONTROLLER PWB in the next step be sure to watch out for the connectors and MCU PWB located behind the CONTROLLER PWB to avoid damaging them 8 Remove the CONTROLLER PWB together with the CONT PLATE ASSY 9 Remove the 2 screws securing the CONT PLATE ASSY to the parallel interface connector on the CONTROLLER PWB and remove the CONTROLLER PLATE ASSY W A R N I N G Since the lithium ...

Page 260: ...EPSON AcuLaser C8500 Revision C Disassembly Assembly Adjustment Disassembly Assembly Procedures 3 108 Figure 3 126 CONTROLLER PWB Removal 7 5 3 5 3 5 4 4 6 9 ...

Page 261: ...l 1 Remove the TOP COVER ASSY See Section 3 2 5 4 2 Remove the RIGHT COVER ASSY See Section 3 2 5 11 3 Disconnect the CONTROLLER FAN connector P J1 4 Remove the 2 screws gold 20mm securing the CONTROLLER FAN and remove the CONTROLLER FAN Figure 3 127 CONTROLLER FAN Removal C H E C K P O I N T Be careful not to pinch the harness when mounting ...

Page 262: ...ASSY See Section 3 2 5 4 2 Remove the RIGHT COVER ASSY See Section 3 2 5 11 3 Remove the MSI REGI HIGH ASSY See Section 3 2 8 1 4 Remove the CONTROLLER PWB See Section 3 2 17 1 5 Remove the CONTROLLER FAN See Section 3 2 17 2 6 Remove the 9 screws silver w collar 6mm securing the CONT CHASSIS ASSY and remove the CONT CHASSIS ASSY Figure 3 128 CONT CHASSIS ASSY Removal ...

Page 263: ...ons CR2032 3V Lithium Cell Battery Danger of explosion if battery is incorrectly replaced Dispose of used batteries according to government s laws and regulation Do not charge the lithium battery W A R N I N G Avant de commencer assurez vous que l imprimante soit eteinte et que le cordon d alimentation soit debranche Lorsque vous changez la pile au lithium assurez vous que la nouvelle respecte bie...

Page 264: ...ee Section 3 2 12 3 5 Remove the FUSER UPPER ASSY See Section 3 2 12 4 6 Remove the FUSER FRONT COVER and FUSER REAR COVER See Section 3 2 12 5 7 Wait 10 seconds and then remove the paper 8 Measure the width of the discolored portion of the paper Measure 15mm from the edge of the paper 9 NIP pressure is properly set if the measurement is 4 8 0 2mm and the difference between the 2 measurements is a...

Page 265: ...Rear Edge Smear CONFIRMATION PROCEDURE 1 Remove the TOP COVER See Section 3 2 5 4 2 Remove the L H INNER COVER See Section 3 2 5 5 3 Disconnect the DEVE CONTACT PLATE ASSY F187 4 Remove the screw silver w collar 6mm securing the DEVE CONTACT PLATE ASSY and remove the DEVE CONTACT PLATE ASSY Figure 3 131 Confirmation Procedure 1 Paper size Rear edge from the paper mm Reference EPL C8000 C8200 A3 27...

Page 266: ...ch the position has changed 8 Turn the side of the white tracking roll set at the location of the white tape in accordance with the following figure NOTE Position changes in the following procedure depend on how the extent to which the drum flange and tracking roll come in contact with each other If the overhang of the drum flange and tracking roll is large the position of the tracking roll change...

Page 267: ...from turning and turn the ROTARY FRAME ASSY as slowly as possible 360 clockwise Figure 3 133 Confirmation Procedure 3 10 Make sure the amount of position change with the mark made in step 7 of this procedure are 3 5mm NOTE If outside the standard adjust the right value by the gap adjustment plate of the Magnet Roll following procedure Figure 3 134 Confirmation Procedure 4 ...

Page 268: ...ustment plate 13 Turn the target DEVELOPER ASSY clockwise until the notch of the DEVE CONTACT PLATE and the teeth of the DEVELOPER ASSY that removed at steps 4 are in its horizontal position 14 Move the over hung of the drum flange and the Magnet Roll while adjusting for left or right the gap adjustment plate of the Magnet Roll and secure the right side screw of the turn screw 15 After repeating s...

Page 269: ...C H A P T E R 4 DIAGNOSTICS ...

Page 270: ...aper and turn the power ON NOTE When a tool such as a mini minus screwdriver is used the rest of the changing Dip Switch process can be done easily NOTE As for entering the READY mode confirm that continuous lighting of H R HEATER and P R HEATER became space fault fire with the next process from the gap in the print outlet of FUSER ASSY 4 Turn on Dip Switch S1 It is at the back of the working hole...

Page 271: ...Section 2 7 3 Paper Supply Unit Selection Control NOTE The paper size is set in accordance with the USIZESET command See Section 4 1 Diagnostics by the Diagnostic Commander When the printer is in an error status printing operation cannot be started NOTE For information about the READY mode see Section 2 6 Operation Mode Figure 4 1 Test Print Procedure W A R N I N G Make sure that your hand does no...

Page 272: ...t and left margins NOTE A straight line extending in the paper transport direction a clock used for MCU PWB increases jitter making an evaluation of the quality of the image impossible In a straight line extending in the laser beam scanning direction a one dot line is printed at intervals of every 128 dots On the back edge of each color the 128 dot interval may vary In a straight line extending in...

Page 273: ...ow the printer operates the diagnostics commander an application software on a personal computer to send commands from the DIAG PWB to the MCU PWB and down load the FIRMWARE for execution NOTE The combination of DIAG PWB DIAG HARNESS RS 232C cable personal computer and diagnostics commander is called the diagnostics tool Maintenance tool The diagnostics tools supplied by SEIKO EPSON are shown in t...

Page 274: ... engine control program housing to flash ROM on MCU PWB 4 2 1 3 Overview of the DIAG PWB This circuit board is equipped with a connector with the MCU PWB a connector with DIAG HARNESS a connector with RS 232C cable D Sub 25 pin female and 2 D Sub 9 pin females 4 dip switches Figure 4 4 DIAG PWB Table 4 2 Dip Switch Functions Dip Switch Initial Setting Description 1 ON For switching the type of RS ...

Page 275: ... the diagnostics commander into the floppy disk drive 4 Click on the Setup I button in the Addition and deletion of the applications property window 5 Complete installation according to the subsequently displayed instructions Execute SETUP exe 6 Execute Program P Tsubaki Service Commander V Registry Entry from the Start menu 7 Copy files xxx DAT into the DAT folder in the folder in which the diagn...

Page 276: ...moval 2 Remove the CONTROLLER PWB Section 3 2 17 1 CONTROLLER PWB PL14 1 10 Removal NOTE In the following procedure make sure soldered surfaces not to make contact with the CONT CHASSIS ASSY If necessary insert an electrical insulator between a circuit board and a metal plate such as a piece of paper folded over itself four times 3 Connect the DIAG PWB with the interface connector of MCU PWB so th...

Page 277: ...e personal computer with a RS 232C cable NOTE The RS 232C must match the settings of the Dip Switch of the DIAG PWB and the connector be completely shielded and have the length of 2 m or less NOTE Make Dip Switch of DIAG PWB the establishment which was suitable for the used connection condition and use it Establishment in the option connector connection 2 ON 4 OFF 4 2 3 Commands Statuses 4 2 3 1 O...

Page 278: ...nostics REGIST_CL execution command 4 2 3 3 Categories of Commands Statuses Each command and status are categorized into the following four groups according to the type of printer control Paper Media and Output Paper feed method location type of paper paper size setting confirmation paper output method location Printing Status Control Printing control setting an operation mode error status codes t...

Page 279: ...tart menu 4 To quit the diagnostics commander click on the Close button 4 2 4 2 Communications Connection Procedure 1 Click on the Manual tab or Auto tab according to what you want to send 2 Click on the Connect button to connect the communications port 3 Click on the Sync button to establish communications NOTE Clicking on the Service tab establishes communications NOTE When exiting the Manual ta...

Page 280: ...indow 3 The commands and status sent and received are displayed in Hex code in the Log Window 4 In addition self issued statuses not displayed in the Status column which do not require commands from the printer are also displayed NOTE Statuses which are not displayed in the Status column but are displayed in the Log Window are as follows IGNORED 41 XX CMD XX REASON PFA 30 XX AMODE XX SHEET1 XX SHE...

Page 281: ...and statuses see Section 4 2 7 Command Status List SELECTION FROM A PULL DOWN MENU NOTE There are command codes and parameter codes in the pull down menu that cannot be selected NOTE Be careful with the thing as well which hasn t been used for pull down menu because they are indicated Don t transmit the command which is not in Section 4 2 7 Command Status List even if it is indicated again by the ...

Page 282: ... corresponding status the status will be displayed in the Status column in hex code NOTE Before changing to another menu Auto or Service click on the Disconnect button to disconnect communications DIRECT ENTRY FROM THE COMMAND COLUMN Procedure 1 Connect DIAG TOOL with the printer launch the diagnostics commander 2 Click on the Manual tab to display the Manual window 3 Establish communications by c...

Page 283: ...Auto Run file are displayed on the screen 7 Click the Start button to start sequential execution of the commands recorded in the Auto Run file NOTE To stop execution of Auto Run File click the Stop button NOTE For other menus Manual and Service click the Disconnect button to cut off communications then execute CREATING AN AUTO RUN FILE NOTE You can make a file using an editor such as Memo Pad NOTE...

Page 284: ...DIAG tool was connected and DIAG commander was started NOTE Connect DIAG tool by direct connection with MCU PWB when using Password Change Master Write Master Read Slave Read Slave Initialize surely When Port Number Flash Write are used even which of the direct connection with MCU PWB or the option connector connection is good NOTE The connection establishment of the communication is done by click...

Page 285: ...er 99999 Solid Information Serial Number xxxxxx xxxxxx referstothelastsixoftheten digits OEM code 02 Solid Information Config Data 09ffffffffff TBD SLAVE READ Slave Read lets you read the contents of the Slave NOTE If Slave Read is executed when communications are not established the Diagnostics Commander will hang Always use another tab to make sure that communications are connected and establish...

Page 286: ...low the procedures in this manual FLASH WRITE A program FIRMWARE for the engine control that it is stored in Flash ROM on MCU PWB can be renewed with Flash Write by download by the FIRMWARE down function NOTE While downloading never turn off the power supply of the device and the personal computer NOTE Remove all the connectors which surely connect an Optional Feeder unit and a Duplex unit and a d...

Page 287: ...II because it isn t started NOTE Never use this for the one for the development though there is MOT Convert button of TSUBAKI Flash Writer II 4 Set up a port to use and a communication speed 5 Click the Down Load button 6 Choose a file mot for download prepared in advance and click the Open button 7 Download is started Progress conditions are indicated under the Down Load button 8 When download is...

Page 288: ...20 NOTE Carry it out again from the beginning after you confirm connection condition and so on if a Error message is indicated Exchange MCU PWB and confirm it when even the practice of the re occasion becomes a Error message Communication Error Verify Error ...

Page 289: ... 4 Diagnostics 4 21 NOTE Confirm the version of FIRMWARE in front of download after because the version of FIRMWARE can be confirmed by transmitting a command E2 with Manual tab Command E2 Status E2 XX XX XX XXXXXX is the version of FIRMWARE ...

Page 290: ...tics The DIAGON command is in Command Class Printing Status Control 4 2 5 2 Diagnostics Types Diagnostics is a function that lets you diagnose problems Including All Test Stop there are 9 types of diagnostics as shown below Table 4 5 Diagnostics Types Parameter Hex Diagnostics Type Description 00 Test Print Sets the printer internal test print parameter 01 Digital Input Test Executes input testing...

Page 291: ...Grid in the above table is the same as Section 4 1 3 Test Print Patterns Table 4 6 Test Print DIAGON command 75 DIAGOFF command 76 DIAGSTART Command Test Print 90 00 XX DIAGSTOPCommand Test Print Unnecessary Parameter Function Data hex 1 Diagnostics Type 00 Test Print 2 Image 01 Grid 3 DGST For status 06 Pass 07 Fail Status present 90 00 XX EX Command 90 01 01 EX Status 90 01 01 06 DIAGSTART Comma...

Page 292: ...OR Check by using the Actuator to switch between light passed and light blocked states at the Sensor FULL STACK SENSE Signal High EXIT_TOP _SNR 16 TOP EXIT SENSOR Check by using the Actuator to switch between light passed and light blocked states at the Sensor TOP EXIT PAPER SENSE Signal High FUSER_ENT _SNR 24 FUSER IN SENSOR Check by using the FUSER IN ACTUATOR to switch between light passed and ...

Page 293: ...gh Table 4 8 Digital Input Test Device Code Digital Input Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Name Code Function Item Check Method Hex When status data is High WASTE _TONER_BOX 52 TONER BOX SENSOR Check by using the Actuator to switch between light passed and light blocked states at the Sensor TONER BOX SENSE Signal High MCU_CHECK 53 Not used TEST_PIN 54 Dip Switch S1 of MCU PWB Checking by ...

Page 294: ...IAGSTART 90 02 XX DIAGSTOP 91 02 XX Name Code Function Item Check Method Hex When status data is High FRONT_DOOR _SW 73 FRONT COVER SWITCH R Checking by opening and closing the FRONT COVER ASSY FRONT COVER SWITCH ON Signal High TOP_DOOR_SW 74 EXIT CHUTE SWITCH Checking by opening and closing the EXIT UPPER ASSY EXIT CHUTE SWITCH ON Signal Signal High MSI_SIDE _GUIDE_SW 75 MSI GUDE SWITCH Checking ...

Page 295: ... 90 02 XX DIAGSTOP 91 02 XX Name Code Function Item Check Method Hex When status data is High OPT_DUP _OUT_SNR 92 ALIGNER OUT SENSOR Check by using paper to switch between light present and light absent states at the Sensor ALIGNER OUT PAPER SENSE Signal High OPT_DUP _DOOR_SW 93 CAB SWITCH I L Checking by opening and closing the INVERTER CHUTE INVERTER CHUTE SWITCH ON Signal High OPT_DUP _TRAY_SW ...

Page 296: ...NUDGER SENSOR Cassette 3 Check by using the NUD FEED BRACKET ASSY to switch between light passed and light blocked states at the Sensor 3 TRAY LEVEL SENSE Signal High Table 4 8 Digital Input Test Device Code Digital Input Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Name Code Function Item Check Method Hex When status data is High OPT_FEEDER2 _PASS_SNR B6 FEED OUT SENSOR Cassette 3 Check by using pap...

Page 297: ...opening and closing the SORTER UPPER COVER SORTER INTLK SWITCH ON Signal High OPT_SORTER _BIN_HOME _SW D3 BIN HOME SWITCH Check by turning switch ON and OFF by hand BIN HOME SWITCH ON Signal High OPT_SORTER _BIN_CAM _SW D4 BIN CAM SWITCH Check by turning switch ON and OFF by hand BIN CAM SWITCH ON Signal High Table 4 8 Digital Input Test Device Code Digital Input Test DIAGSTART 90 02 XX DIAGSTOP 9...

Page 298: ...elopment position Otherwise a toner jam or gear damage may occur NOTE Never set the 2ND GTR to Advance with PROCESS DRIVE ASSY OFF and FUSER P H MOTOR ON Otherwise the IBT BELT ASSY may be scratched NOTE Never turn ON the PROCESS DRIVE ASSY with the 2ND GTR set to Advance Otherwise the IBT BELT ASSY may be scratched DIAGON command 75 DIAGOFF command 76 DIAGSTART Command Digital Output Test 90 02 X...

Page 299: ...s to execute without causing any problems NOTE For check methods with WARNING CAUTION indicated check thoroughly the WARNINGs and CAUTIONs in the 2 6 6 Digital Output Test so as to execute without causing any problems 4 2 5 7 Digital Output Test Device Code W A R N I N G For check methods with WARNING CAUTION indicated check thoroughly the WARNINGs and CAUTIONs so as to execute without causing any...

Page 300: ...xecuting with Analog Output Test 01 Set 2BTR ON signal to Low Table 4 10 Digital Output Test Device Code Digital Output Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Code Function Item Name Hex When status data is High Check Method BTR_1ST 0B HVPS WARNING CAUTION Do not check the 2ND BTR output Check the signal Check during executing with code 54 HVPS can not be normal without executing with Analog Ou...

Page 301: ...DIAGSTOP 91 02 XX Code Function Item Name Hex When status data is High Check Method PATH_SOL _PULL 18 EXCHANGE SOLENOID Check by operational sound that the Solenoid is operating and visually that the EXCHANGE CHUTE is operating Though ON OFF is repeated with 0 12sec 1sec only the first time of the beginnings can be checked Set EXCHANGE SOLENOID PULL ON signal to Low OPT_DUP_PATH _SOL_PUSH 19 DUP G...

Page 302: ...gnal to Low MSI_MOT 23 LIFT MOTOR ASSY CAUTION Turn it off automatically in 0 12msec rest Set MCU PWB signal to Low Table 4 10 Digital Output Test Device Code Digital Output Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Code Function Item Name Hex When status data is High Check Method MSI_MOT_0 2D LIFT MOTOR ASSY CAUTION Check visually that the BOTTOM PLATE is operating in the lift up direction During...

Page 303: ...02 XX DIAGSTOP 91 02 XX Code Function Item Name Hex When status data is High Check Method MAIN_MOT 54 PROCEASS DRIVE ASSY WARNING CAUTION Check the rotation of the motor It rotates in standard speed unless DIAGSTOP is executed with the code 00 06 Set PROCESS MOTOR ON signal to Low DISPENCE _MOT 56 DISPNESE CLUTCH ASSY CAUTION Check by operational sound that the clutch is operating Set DISPNESE CLU...

Page 304: ...igh Check Method FUSER_FAN_2 64 FUSER CHUTE FAN WARNING Check visually the rotation of the FUSER CHUTE FAN Set FUSER CHUTE FAN ON signal to Low FUSER_FAN _SPEED 65 FUSER FAN 1 WARNING Check visually that the rotation of the FUSER FAN 1 goes to high speed During executing with code 63 executing this code changes the FUSER FAN 1 to high speed Set FUSER FAN 1 SLOW SPEED signal to Low IBT_CLEANER_S OL...

Page 305: ...T 90 02 XX DIAGSTOP 91 02 XX Code Function Item Name Hex When status data is High Check Method OPT_DUP _ALN_CL A2 ALGNER DRIVE CLUTCH Check by operational sound that the clutch is operating Set ALGNER DRIVE CLUTCH ON signal to Low OPT_DUP_INV _FORWARD_CL A3 FROWARD CLUTCH Check by operational sound that the clutch is operating Set FROWARD CLUTCH ON signal to Low OPT_DUP_INV _REVERSE_CL A4 REVERSE ...

Page 306: ...ctions by this code s becoming effective while a code B7 is executed Table 4 10 Digital Output Test Device Code Digital Output Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Code Function Item Name Hex When status data is High Check Method OPT_FEEDER1 _TURN_ROLL _CL B4 TURN CLUTCH ASSY Cassette 2 Check by operational sound that the clutch is operating Set 2 TURN CLUTCH ON signal to Low OPT_FEEDER2 _TUR...

Page 307: ...Option Sorter OPT_SORTER _FEED_S LOW_SPEED C4 SORTER P H MOTOR WARNING Check the rotation of the motor During executing with code C0 executing this code changes the SORTER P H MOTOR to super low speed Send the SORTER P H S LOW SPEED command to Option Sorter Table 4 10 Digital Output Test Device Code Digital Output Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Code Function Item Name Hex When status da...

Page 308: ...yed in 2 bytes in order from the least significant DIAGON command 75 DIAGOFF command 76 DIAGSTART command Analog Input Test 90 03 XX DIAGSTOP command Analog Input Test Unnecessary Parameter Function Data hex 1 Diagnostics Type 02 Digital Output Test 2 Code_AI Device code See the next section 2 6 9 3 Data Status only data Status present 90 03 XX XX XX EX Command 91 03 01 EX Status 90 03 01 1F 01 DI...

Page 309: ...and check the data with this diagnostic 1 SIZE SWITCH Signal 0000 00FFh 0 4 1 V See 7 2 Paper Size Control in Chapter 10 HR_THERMISTE R 03 TEMP SENSOR ASSY Check data Note When DigitalOutputTest 46 is executed it becomes the sermister breakage detection mode and becomes the 00EAh above in the case of the breakage TEMP Signal 0000 00FFh 0 4 1 VDC ENV_THERM 04 ENVIRONMENT SENSOR Temperature Check da...

Page 310: ...Fh 0 4 1 V See Section 2 7 1 Paper Size Control OPT_FEEDER_P AP _SIZE_SW_2 0B AUX SIZE SWITCH ASSY Cassette 3 Do ON OFF of four Paper Size Switches of AUX SIZE SWITCH ASSY of the Cassette 3 check the data by this DIAG 3 PAPER SIZE Signal 0000 00FFh 0 4 1 V See Section 2 7 1 Paper Size Control Table 4 12 Analog Input Test Device Code Analog Input Test DIAGSTAR 90 03 XX DIAGSTOP Unnecessary Code Fun...

Page 311: ... Test Parameter DIAGON command 75 DIAGOFF command 76 DIAGSTART command Analog Output Test 90 04 XX XX DIAGSTOP command Analog Output Test 91 04 XX XX Parameter r Function Data Hex 1 Diagnostics Type 04 Analog Output Test 2 Code_AO Device code See the next section 2 6 11 3 Data For command data output level DGST For command 06 Pass 07 Fail Status present 90 04 XX XX 91 04 XX XX EX Command 90 04 02 ...

Page 312: ... G During high voltage output never touch parts with high voltage output or energized with high voltage When the laser is operating always keep all covers in place Never touch an operating drive section W A R N I N G For check methods with WARNING CAUTION indicated check thoroughly the WARNINGs and CAUTIONs in the Section 4 2 5 6 Digital Output Test so as to execute without causing any problems Ta...

Page 313: ...est Device Code Analog Output Test DIAGSTAR 90 04 XX DIAGSTOP 91 04 XX XX Code Functional Item Name Hex Check Signal Check Method Data Range Deve Rotary Motor 0A ROTARY MOTOR ASSY WARNING CAUTION Check visually that the ROTARY MOTOR ASSY is rotating at the specified angle A ROTARY MOTOR ON signal functions too and ROTARY MOTOR ASSY turns it in the designated angle Output the ROTARY MOTOR CLOCK sig...

Page 314: ... is exchanged though it is being made a principle that exchange of EEPROM NVM U2 is done begin to read the following NVM number from MCU PWB before the exchange surely and do EEPROMRead and write down value when exchange of EEPROM isn t made Do Log Save And recommend it when you do Read Out of the following NVM number and write down value to grasp use conditions if necessary when others maintain i...

Page 315: ...value of BELT CLEANER ASSY 752 02F0h The whole seat count accumulation value of the device 760 02F8h The count accumulation value of TRANSFER ASSY 764 02FCh Count accumulation value for the DRUM CARTRIDGE Life detection Caution When a CRUM function is endowed don t do the thing except Read Out absolutely 768 0300h The count accumulation value of 2ND BTR ASSY 772 0304h Counter A for the WASTE TONER...

Page 316: ...nse accumulation time of TONER CARTRIDGE BK 976 03D0h The total dispense accumulation time of TONER CARTRIDGE Y 978 03D2h The total dispense accumulation time of TONER CARTRIDGE M 980 03D4h The total dispense accumulation time of TONER CARTRIDGE C NOTE The partly same contents can be done by the Section 4 2 6 Count Accumulation Value Read Write as well ...

Page 317: ... etc NOTE When MCU PWB is exchanged though it is being made a principle that exchange of EEPROM NVM U2 is done begin to read the following NVM number from MCU PWB before the exchange surely and do EEPROMRead and write down value when exchange of EEPROM isn t made Do Log Save And write the value estimated more than the use conditions when it isn t made that if it begins to read it exchange of EEPRO...

Page 318: ...value of BELT CLEANER ASSY 752 02F0h The whole seat count accumulation value of the device 760 02F8h The count accumulation value of TRANSFER ASSY 764 02FCh Count accumulation value for the DRUM CARTRIDGE Life detection Caution When a CRUM function is endowed don t do the thing except Read Out absolutely 768 0300h The count accumulation value of 2ND BTR ASSY 772 0304h Counter A for the WASTE TONER...

Page 319: ...ed to as Counter Clear And as for each part of 2ND BTR ASSY BELT CLEANER ASSY DEVELOPER ASSY Y DEVELOPER ASSY M DEVELOPER ASSY C DEVELOPER ASSY BK as well after periodic replacement of them with a new one write 0 to the following applicable VNM number data below When replacing MAIN FUSER ASSY with new one 744 02E8h When replacing TRANSFER ASSY with new one 760 02F8h When replacing 2ND BTR ASSY wit...

Page 320: ...ead in advance in EEPROM Write Or conduct NVM Write in the Service tab NOTE After sending a command you must send the DIAGOFF command to complete EEPROM initialization Table 4 17 EEPROM Initialization DIAGON command 75 DIAGOFF command 76 DIAG Command EEPROM Initialize 90 07 DIAG Command EEPROM Initialize Unnecessary Parameter Function Data Hex 1 Diagnostics Type Status only 06 Pass 07 Fail07 FEEPR...

Page 321: ...moved by data small in the tip direction 0 988ms ec 2 0002 1 Tip Registration adjustment MSI loading paper postcard 48 D0 An image is moved by data small in the tip direction 0 988ms ec 3 0003 1 Tip Registration adjustment MSI loading paper normal paper OHP label coat paper 50 CE An image is moved by data small in the tip direction 0 988ms ec 4 0004 1 Tip Registration adjustment MSI loading paper ...

Page 322: ...XX XX EEPROM Write 90 06 XX XX YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units X 18 0011 1 A code by the country 0 1 0 00 0 Japan 1 Others X 19 0013 1 Image area choice 0 1 1 01 0 Standerd 1 Wide 20 0014 1 Side Registration adjustment cassette 1 0 64 00 40 33 21 An image is moved by data small in the left end direction 0 17mm 21 0015 1 ...

Page 323: ...on Set Range Hex Default Hex Description of Data Units X 42 002A 1 The first sheet loading paper of 1UP 2UP timing compensation TrayÇR 136 88 Loading paper timing becomes early by data small 20msec X 43 002B 1 The first sheet loading paper of 1UP 2UP timing compensation MSI 194 C2 Loading paper timing becomes early by data small 20msec X 44 002C 1 The first sheet loading paper of 1UP 2UP timing co...

Page 324: ...ty adjustment MSI loading paper postcard 32 E0 The amount of loop becomes small by data small 0 988ms ec Table 4 18 NVM List EEPROM Read 90 05 XX XX EEPROM Write 90 06 XX XX YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units X 69 0045 1 FUSER STANDBY Temperature 115 73 Temperature rises by data small 1 A D value X 70 0046 1 FUSER RUN 012 T...

Page 325: ...ROM Write 90 06 XX XX YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units X 80 0050 1 FUSER RUN 052 Temperature OHP B W 1 X 112 70 Temperature rises by data small 1 A D value X 81 0051 1 FUSER RUN 053 Temperature OHP B W X oo 112 70 Temperature rises by data small 1 A D value X 82 0052 1 FUSER RUN 042 Temperature Cardboard envelope B W 112 ...

Page 326: ...YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units X 108 006C 1 Regi loop quantity adjustment Dummyless Postcard 32 E0 The amount of loop becomes small by data small 0 988ms ec 114 0072 1 Bk Toner Concentration Black toner concentration 1 2 3 4 5 3 03 Change a concentration goal value by offset value 4 Thicken a goal for concentration by d...

Page 327: ...PROM Write 90 06 XX XX YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units 355 0163 1 2ND BTR offset level Envelope 1 10 01 0A 3 03 Change 2ND BTR output by offset value Make output absolute value small by data small 200VDC 356 0164 1 2ND BTR offset level Label 1 10 01 0A 3 03 Change 2ND BTR output by offset value Make output absolute value...

Page 328: ... Write 90 06 XX XX YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units X 386 0182 1 1STEP offset value with 2ND BTR offset level 1 3 Normal paper 0 23 00 17 31 1F Offset value voltage becomes small by data small 13VDC X 387 0183 1 1STEP offset value with 2ND BTR offset level 1 3 Coat paper 0 23 00 17 31 1F Offset value voltage becomes small...

Page 329: ...pense time 100msec X 504 01F8 2 TONER CARTRIDGE Y Life warning value 7900 1EDC Dispense time 100msec Table 4 18 NVM List EEPROM Read 90 05 XX XX EEPROM Write 90 06 XX XX YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units X 506 01FA 2 TONER CARTRIDGE M Life warning value 7200 1C20 Dispense time 100msec X 508 01FC 2 TONER CARTRIDGE C Life wa...

Page 330: ...YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units X 659 0293 1 Toner Empty Flag Cyan 0 1 0 00 0 Empty condition detection 1 Empty condition un detection 720 02D0 2 WASTE TONER BOX Life counter Counter C 0 0000 All the color dispense time accumulation value 1sec 724 02D4 4 Printer image counter 0 0000 0000 All the color image count accumul...

Page 331: ... Set Range Hex Default Hex Description of Data Units 748 02EC 4 BELT CLEANER ASSY Life counter 0 0000 0000 Count accumulation value Count 1 print as 1 count in the case of 2 print on a Belt one page with 2UP count 1 print as 2 count in the case of 1 print on a Belt one page with 1UP and 2UP 752 02F0 4 Printer Life counter 0 0000 0000 Count accumulation value Form length in the carriage direction i...

Page 332: ... Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units 780 030C 4 Printer Black image counter Statistical Counter BK 0 0000 0000 Black image count accumulation value Form length in the carriage direction is less than 219mm in 1 count and more than 219mm 2 count 788 0314 4 DEVELOPER ASSY BK Life counter 0 0000 0000 Black image count accumulation value In the ca...

Page 333: ...t Table 4 18 NVM List EEPROM Read 90 05 XX XX EEPROM Write 90 06 XX XX YY XX XX XXXX Can Cannot Use NVMNo Hex Data Byte Function Set Range Hex Default Hex Description of Data Units X 816 0330 4 DEVELOPER ASSY C Life warning value 99 999 9 99 05F5 E0FF Count X 820 0334 4 DEVELOPER ASSY BK Life limit value 99 999 9 99 05F5 E0FF Count X 824 0338 4 DEVELOPER ASSY Y Life limit value 99 999 9 99 05F5 E0...

Page 334: ...pense accumulation time Second level 1sec 976 03D0 2 All TONER CARTRIDGE Y dispense accumulation time counter 0 0000 Dispense accumulation time Second level 1sec 978 03D2 2 All TONER CARTRIDGE M dispense accumulation time counter 0 0000 Dispense accumulation time Second level 1sec 980 03D4 2 All TONER CARTRIDGE C dispense accumulation time counter 0 0000 Dispense accumulation time Second level 1se...

Page 335: ...g MCU PWB the no CRUM function specification DRUM CARTRIDGE 2ND BTR ASSY BELT CLEANER ASSY DEVELOPER ASSY Y DEVELOPER ASSY M DEVELOPER ASSY C and DEVELOPER ASSY BK with a new one be based on CAUTION of EEPROM Read Write of Section 4 2 5 Diagnostics Execution NOTE The same contents can be done with EEPROM Read Write of the Section 4 2 5 Diagnostics Execution as well When EEPROM Read Write is done i...

Page 336: ...Counter A D0 11 In the same way as the NVM number 772 0304 WASTE TONER BOX Counter B D0 12 In the same way as the NVM number 774 0306 WASTE TONER BOX Counter C D0 13 In the same way as the NVM number 720 02D0 MAIN FUSER ASSY D0 0C In the same way as the NVM number 764 02E8 2ND BTR ASSY D0 09 In the same way as the NVM number 768 0300 BELT CLEANER ASSY D0 0A In the same way as the NVM number 748 02...

Page 337: ...SY 80 0C V1 V2 V3 V4 When replacing with new MAIN FUSER ASSY do counter clear 2ND BTR ASSY 80 09 V1 V2 V3 V4 When replacing with new 2ND BTR ASSY do counter clear BELT CLEANER ASSY 80 0A V1 V2 V3 V4 When replacing with new BELT CLEANER ASSY do counter clear DEVELOPER ASSY Y 80 0D V1 V2 V3 V4 When replacing with new DEVELOPER ASSY Y do counter clear DEVELOPER ASSY M 80 0E V1 V2 V3 V4 When replacing...

Page 338: ... C None S 23 DEST INFO_D Paper discharge part condition information TRYSEL C 60 TRAY Paper feed unit selection S None MEDSEL C 61 MEDIA Paper quality paper type selection S None OUTSET C 63 DEST DOPT Discharge location selection S None USIZESET C 64 TRAY SIZE FSIZEU FSIZEL SSIZEU SSIZEL Setting of undefined paper size S None TRYSELR C B0 Information on the currently selected paper feed unit S B0 T...

Page 339: ... FSIZEU FSIZEL SSIZEU SSIZEL PARAMETER Parameter Code Parameter Code SHEET Paper discharge number of sheets 1Byte Hex FSIZEU Laser beam scanning direction size Most significant 1Byte Hex Set in 0 1mm units FSIZEL Laser beam scanning direction size Least significant 1Byte Hex Set in 0 1mm units SSIZEU Paper feed direction size Most significant 1Byte Hex Set in 0 1mm units SSIZEL Paper feed directio...

Page 340: ...assette 1 X MONARCH LE F X Regular paper FACE UP Include Duplex BIN 1 02 Cassette 2 X Official government postcard SEF X OHP film BIN 2 03 Cassette 3 X COM 10 LEF X Label paper Overseas Sorter BIN 3 04 MSI O DL LEF X Thick paper BIN 4 05 STATEMENT L EF X Label paper Domestic BIN 5 06 A5 LEF X BIN 6 07 C5 SEF X Coat paper BIN 7 08 B5 LEF O BIN 8 09 EXECUTIVE L EF O BIN 9 0A 8 x10 LEF X Thick paper ...

Page 341: ...SEF X 18 12 x18 SEF X 19 12 5 x18 SEF X 1A 13 x18 SEF X 1B Undefined regular paper O Cassette 1 only 1C Undefined envelope X Table 4 24 TRAY SIZE MEDIA DEST DOPT Parameter Data Hex TRAY SIZE MEDIA DEST DOPT Feeder Unit Paper Size Setting Enable O Disable X Paper Size Detection at Paper Tray Enable O Disable X Paper Quality Discharge Location Sorter ...

Page 342: ...C None S 35 SHEET Feeder permission information COLOR C None S 36 PLANE Color information PFCRDY C None S 37 Preparation for PFC reception WRNOFF C None S 38 Device warning stop PFC C 70 PMODE CMODE SHEET BIN Feeder request information S None PMSTT C 71 Scanner Motor rotation start request S None PERST C 72 Error reset request S None SLPON C 73 SLEEPMODE Enter applicable SLEEP mode request S None ...

Page 343: ...M C C3 Error information on CRUM function of the DRUM CARTRIDGE S C3 STSCRUM SSJAM C C4 Error information on paper jam S C4 STSJAM1 STSJAM2 SSHW C C5 Error information on hardware S C5 STSHW1 STSHW2 STSHW3 STSHW4 SSLIFE C C6 Error information on life S C6 STSLIFE1 STSLIFE2 SSOPEN C C7 Error information on cover etc open S C7 STSOPEN1 STSOPEN2 SSWARN C C8 Error information on warning Table 4 25 Com...

Page 344: ...DE2 STSCALL 7 LIGHT SLEEP Mode Consumable parts error SSCONS command C1 6 DIAG TEST Mode DEEP SLEEP Mode No paper SSTRAY command C2 5 WARN UP Mode CRUM error SSCRUN command C3 4 Acknowledge Print Quality Mode Paper jam SSJAM command C4 3 READY Mode Hardware error SSHW command C5 2 PRINT Mode Life over SSLIFE command C6 1 ERROR Mode Cover open SSOPEN command C7 0 Warming SSWARN command C8 Table 4 2...

Page 345: ... of the Cassette 3 ID error 3 Count error 2 Imitation error 1 1 Imitation error 2 0 Table 4 30 SSJAM Status Parameter SSJAM Status Code C4 Data Bit SSJAM1 SSJAM2 7 Paper jam in EXIT UPPER ASSY EXIT LOWER ASSY Exit Jam Paper remaining in the INVERTER ASSY Duplex In Jam 6 Paper jam in FUSER ASSY Fuser Jam Paper remaining in the INVERTER ASSY ASSY ALIGNER ASSY Duplex Mid Jam 5 Paper jam in MAIN P H F...

Page 346: ...ND BTR error 0 ROS ASSY error BTR WHEEL SENSOR error Data Bit STSHW3 STSHW4 7 FUSER overcoat heat error FEEDER MOTOR ASSY error 6 FUSER warm up error INVERTER MOTOR error 5 FUSER Heater error FUSER FAN 1 error 4 FUSER low temperature error EXIT CHUTE FAN error 3 FUSER sermister breakage error DEVE FAN error 2 P H MOTOR ASSY error 1 PROCESS DRIVE ASSY error 0 ENVIRONMENT SENSOR error Sorter Motor e...

Page 347: ...TSWARN2 STSWARN3 7 Yellow toner life warning BELT CLEANER ASSY life warning Cassette 1 remaining paper amount warning 6 Magenta toner life warning 2ND BTR ASSY life warning Cassette 2 remaining paper amount warning 5 Cyan toner life warning Full Stack warning Option Sorter Cassette 3 remaining paper amount warning 4 Black toner life warning Printer life warning Full Stack warning TOP COVER ASSY 3 ...

Page 348: ...tus Explanation LIFCNTSET C None S 80 LIFE V1 V2 V3 V4 Write data to life counter LIFLIMSET C None S 81 LIFE V1 V2 V3 V4 Do not use unless instructed to Change life limit value CTLSET C None S 85 CTL V1 V2 V3 Do not use unless instructed to Change control value LIFWNGSET C None S 88 LIFE V1 V2 V3 V4 Do not use unless instructed to Change life warning value LIFCNTR C D0 LIFE Read data of life count...

Page 349: ...08 Y Toner Concentration Yellow toner concentration 09 2ND BTR ASSY M Toner Concentration Magenta toner concentration 0A BELT CLEANER ASSY C Toner Concentration Cyan toner concentration 0B Bk Toner Concentration Black toner concentration 0C MAIN FUSER ASSY 0D DEVELOPER ASSY Y 0E DEVELOPER ASSY M 0F DEVELOPER ASSY C 10 DEVELOPER ASSY BK 11 WASTE TONER BOX Counter A Tip registration adjustment All t...

Page 350: ...tment Duplex about 0 17mm unit 1B Enable O Disable X of size mismatch 1F 2ND BTR offset level Regular paper 20 2ND BTR offset level OHP 22 2ND BTR offset level Thick paper 25 2ND BTR offset level Coat paper 2A 2ND BTR offset level Label paper 2B 2ND BTR offset level Postcard 2C 2ND BTR offset level Envelope 2D A code by the country FF All Life Counters Table 4 36 LIFE TIM CTL STC Parameter Code Da...

Page 351: ...ow are stipulated in Bit units Table 4 37 Diagnostic Control Name C S Command Status Explanation IGNORED C None S 41 CMD REASON Reject command reception Displays command code applicable to CMD OPTSR C E1 Option status S E1 OPTION ROMNOR C E2 MCU PWB firmware version S E2 V1 V2 V3 DIAGSTART C 90 Refer toSection 4 2 5 Diagnostics Execution S 90 DIAGSTOP C 91 Refer to Section 4 2 5 Diagnostics Execut...

Page 352: ...h status parameter For a description of each parameter see Section 4 2 7 Command Status List Chapter 2 Troubleshooting contains error codes as the same code as these statuses NOTE In Section 4 2 7 Command Status List instead of a space between each Byte a hyphen is used EX In the case of the single error C1 00 80 80h Bit7 ON No TONER CARTRIDGE Y SSDTCH error EX In the case of the compound error C5...

Page 353: ...C H A P T E R 5 TROUBLESHOOTING ...

Page 354: ...le gases are produced 7 Avoid locating the printer in places exposed to direct sunlight 8 The printer should be located in a well ventilated area 9 The printer should be located on a secure level surface 10 Paper should be within specifications We recommend standard paper 11 The printer handled and operated as described in the manuals 12 Parts to be replaced periodically should be replaced in acco...

Page 355: ...dures described herein W A R N I N G Never touch conducting parts other than required when the power is ON The power switch inlet part of the LVPS is conducting electricity event when the power is OFF Be careful not to touch conducting parts W A R N I N G If performing work with the power ON the covers off and the interlock and safety switches ON there is danger of laser radiation being emitted fr...

Page 356: ...Error Off Off Error Page 5 14 Cover A Open Off Off Error Page 5 11 Cover D Open Off Off Error Page 5 11 Cover E Open Off Off Error Page 5 12 Cover F Open Off Off Error Page 5 12 Depleted Battery Warning Page 5 18 Form Feed Off Off Status Page 5 7 Format Error ROM A On Off Warning Page 5 17 Format Error ROM B On Off Warning Page 5 17 Front Cover Open Off Off Error Page 5 11 HDD CHECK Off Off Status...

Page 357: ... to Save Off Off Status Page 5 7 ROM CHECK Off Off Status Page 5 7 Self Test On Off Status Page 5 7 Standby On Off Status Page 5 8 Turn Page sss Off Off Error Page 5 12 Time exceeded Warning Page 5 15 Unit B Open Off Off Error Page 5 11 Unit C Open Off Off Error Page 5 11 Unit G Open Off Off Error Page 5 11 uuuu Toner Crtg Out Off Off Error Page 5 10 uuuu Toner Low Warning Page 5 17 uuuu Toner Out...

Page 358: ...ting Overview 5 6 Figure 5 1 The locations of Units Covers Face down Cassette Unit C Paper Tray Cover D Cover E Lower Cassette 1 LC 1 Lower Cassette 2 LC 2 Lower Cassette 3 LC 3 Unit G Front Cover Large Capacity Paper Unit Cover A Cover F Unit B ...

Page 359: ...he message Reset indicated Reset Resets the printer Job Cancel Job is being canceled Reset To Save Appears when the print settings were changed during printing Perform one of the following to clear the message 1 Press the On Line button to override the error and continue printing However the changes are not effective until the ongoing job is completed 2 Reset the printer or perform a warm boot for...

Page 360: ...o return the printer to the ready status press the On Line or Continue button Note performing reset or rest all operation erases all printing data Standby A Ready message Indicates in which energy save mode the printer is level 1 or 2 v 1 Standby level 1 v 2 Standby level 2 Ready The printer is in an on line status HDD Check Checks the HDD function HDD Format Formatting the HDD The progress is ind...

Page 361: ... 4009 C Near Unit C 4009 D Near Cover D 4009 E Near Cover E 4009 B Near Unit B 4008 A Near Cover A 4012 NOTE The priority order in case that only one status item can be returned as in EJL is 4081 4082 4009 4008 or 4012 Solution Feed Remove the jammed paper near the paper source and open the paper feeding unit and the feeder cover if 2 3 Cassette Large Capacity Paper Cassette Unit is installed to c...

Page 362: ... printer back on Install Waste T Box LED On Line off Continue off Explanation The Waste Toner Box is not installed Solution Open the front cover install the Waste Toner Box and close the cover to clear the error Wrong Photoconductor LED On Line off Continue off Explanation A wrong photoconductor unit is installed Solution Turn the printer off and open the front cover Replace the wrong photoconduct...

Page 363: ... the error Exit Cover Open LED On Line off Continue off Explanation The exit cover is open Solution Close the cover to clear the error Cover A Open LED On Line off Continue off Explanation The Cover A Paper Exit Cover is open Solution Close the Cover A The error will be automatically cleared Cover D Open LED On Line off Continue off Explanation The Cover D Right Cover is open Solution Close the Co...

Page 364: ...rror and Check Paper Type error will not be indicated Paper Out sss ttt LED On Line off Continue off Explanation 1 There is no paper loaded in the selected paper source sss 2 Paper is set in none of the paper sources In this case the paper source previously used is indicates If this condition is detected at the power on however LC1 is indicated ttt shows the paper size selected for the paper sourc...

Page 365: ...Solution When Auto Cont in Config menu Off perform any of the following 1 Press the Continue button The action follows varies depending on the cause of the error If the size of the graphic data has exceeded the buffer size the printer ejects the page before the error ignoring the command that caused the error If the cause of the error is a failure in registering the font macro pattern or so the pr...

Page 366: ...ove the ROM module 2 Perform Reset All 3 If the error still occur after performing Reset All perform Service Call Copy System Error LED On Line off Continue off Explanation Some units of the copy system are not installed properly Solution Turn the power off and install the units of the copy system properly or remove all the units and turn the power off Can t Print Duplex LED On Line off Continue b...

Page 367: ...on The selected paper size PAGE SIZE and the size of the paper fed do not match If this error does not occur when the paper is fed from the paper tray the value for MP tray size in the printing menu is replaced with the value for the Page Size Depending on the paper sizes the printer may not be able to detect paper size mismatches and this warning will not be displayed When this warning occurs be ...

Page 368: ...r exit mechanism restrictions the paper exit source becomes invalid and the sheet is ejected to another tray Face Up Solution Perform either of the following procedures to clear the warning 1 Press the continue button to clear the warning 2 Perform a Reset operation Need Memory LED No effect on LED state Explanation While processing print data the printer ran out of memory The printer attempted to...

Page 369: ...printer off and remove the ROM module uuuu Toner Low LED No effect on LED state Explanation The engine has detected by measuring the dispense time the toner level for one or more Toner Cartridges has fallen below 80 The uuuu area indicates which Toner Cartridge is low Y M C or K Solution Perform any of the following procedures to clear the warning message 1 Press the Continue button 2 Perform a Re...

Page 370: ... the following procedures to clear the warning message 1 Press the Continue button 2 Turn the power off and remove the ROM module Depleted Battery LED No effect on LED state Explanation The battery life is running out Users con continue printing but preparation for a new battery is recommended This is not an after sales part Solution Press the Continue button to clear the error Worn Fuser LED No e...

Page 371: ...malfunction E 530 Environment humidity sensor malfunction FIP 1 27 E 531 PR Motor malfunction FIP 1 15 E 532 P H Motor2 malfunction FIP 1 14 E 533 Thermosensor malfunction FIP 1 25 E 534 Fuser Unit malfunction Low Temperature FIP 1 26 E 535 Fuser Unit malfunction Lamp FIP 1 26 E 536 Fuser Unit malfunction Time out E 537 Fuser Unit malfunction Overheat FIP 1 25 E 543 Rear fan malfunction FIP 1 30 E...

Page 372: ... 43 C 0255 CPU error NMI exception FIP 1 43 C 0256 CPU error Division by zero FIP 1 43 C 0257 CPU error Operation overflow FIP 1 43 C 0258 CPU error break FIP 1 43 C 0800 IPL error Controller problem FIP 1 43 C 1002 Error in standard RAM Capacity below standard or other FIP 1 45 C 1010 Verify error FIP 1 44 C 1020 RAM DIMM error Slot 0 FIP 1 45 C 1021 RAM DIMM error Slot 1 FIP 1 45 C 1022 RAM DIMM...

Page 373: ...ground SG signal ground or RTN return After making sure there is conductivity between AG s SG s and RTN s respectively you can connect the negative side to a PIN of another AG SG or RTN instead of P J3 4PIN AG s SG s and RTN s are however not all of the same level so you must be careful not to confuse them 10 The terminal surface every other one toward yourself away from yourself the side of the c...

Page 374: ... to FIP 1 5 Lack of paper not detected for MSI tray Go to FIP 1 6 Absence of MAIN FUSER ASSY not detected Go to FIP 1 2 Absence of WASTE TONER BOX not detected Go to FIP 1 3 Absence of Cassette 1 not detected Go to FIP 1 1 Absence of Toner Cartridge not detected Go to FIP 1 4 Paper size and print image area do not agree Go to FIP 1 10 The power does not come on Go to FIP 1 41 Print operation is ab...

Page 375: ...e engine alone Check the Printer Controller If an error still occurs after replacing go to step 3 Go to step 3 3 UNIVERSAL CASSETTE mounting check Can the UNIVERSAL CASSETTE be installed smoothly Go to step 4 Replace the faulty part s 4 END GUIDE ACTUATOR check Does the END GUIDE ACTUATOR push in the PAPER SIZE SWITCH when the Cassette 3 is installed After inserting a sheet of paper from the rear ...

Page 376: ... FUSER ASSY mounting check Is the FUSER ASSY properly mounted Check by removing and reinstalling the FUSER ASSY With the tool Go to step 4 Without the tool Go to step 5 Replace the faulty part s 4 FUSER ASSY detection circuit check Is the FUSER ASSY detection circuit functioning properly By using the DIAG tool check by Digital Input Test device code 24 Go to step 5 Replace the MCU PWB 5 FUSER ASSY...

Page 377: ...ON AcuLaser C8500 Revision C Troubleshooting Level 1 FIP Fault Isolation Procedure 5 25 9 FUSER ASSY replacement check Replace the FUSER ASSY Does the problem still occur Replace the MCU PWB Problem solved ...

Page 378: ... HARNESS MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 WASTE TONER BOX mounting check Is the WASTE TONER BOX properly installed Go to step 3 Install the WASTE TONER BOX properly 3 DRUM CARTRIDGE mounting check Is the DRUM CARTRIDGE properly installed Go to step 4 Install the DRUM CARTRIDGE properly 4 TONER BOX SENSOR mounting check Is the TONER BOX SENSOR proper...

Page 379: ...PWB Replace and remount the concerned part s Go to step 2 2 Toner Cartridge seal check Is the white reflecting seal applied to the concerned the Toner Cartridge Go to step 3 Replace the concerned Toner Cartridge 3 CARTRIDGE SENSOR check Is the CARTRIDGE SENSOR installed properly Go to step 4 Remount the CARTRIDGE SENSOR 4 Toner Cartridge replacement check Is the status solved when the concerned To...

Page 380: ... the engine alone Check the Printer controller If an error still occurs after replacing go to step 3 Go to step 3 3 BOTTOM PLATE ASSY check Does the BOTTOM PLATE ASSY lift normally when the UNIVERSAL TRAY is pushed in Remove the TURN IN CHUTE and check Go to step 4 Replace the faulty part s paper cassette etc 4 Cassette N P ACTUATOR check Does the Cassette N P ACTUATOR operate smoothly when there ...

Page 381: ... engine alone Check the Printer controller If an error still occurs after replacing go to step 3 Go to step 3 3 Does the status occur at a letter size or smaller Go to step 4 Replace the concerned part s e g MSI N P ACTUATOR etc 4 MSI N P ACTUATOR check Is the actuator operating depending the conditions below Paper is set The MSI N P ACTUATOR is away from the detection area of the EMPTY SENSOR No ...

Page 382: ... mounting damage distortion dirt adherence of foreign matter Main parts to check DRUM CARTRIDGE CRUM CONNECTOR ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 CRUM CONNECTOR ASSY continuity check Is there proper continuity between J23 p22 Go to step 3 Replace the CRUM CONNECTOR ASSY 3 DRUM CARTRIDGE replacement check Is there still a problem after replacing with new DRUM CARTR...

Page 383: ...ing curled paper or paper that tends to curl Change to different paper Go to step 4 4 EXIT LOWER ASSY check Is there foreign matter in the paper route of the EXIT LOWER ASSY Is there anything wrong with parts With tool Go to step 5 Without tool Go to FIP 2 29 Clean or replace the faulty part s 5 TOP EXIT SENSOR check Is the TOP EXIT SENSOR functioning properly Check by Digital Input Test device co...

Page 384: ...tends to curl Change to different paper Go to step 4 4 FUSER EXIT ACTUATOR check Does the FUSER EXIT ACTUATOR operate smoothly according to the following conditions below When there is paper and it is removed from the FUSER EXIT SENSOR detection section does it operate smoothly When there is no paper and the FUSER EXIT SENSOR detection section is screened off does it operate smoothly With tool Go ...

Page 385: ... ACTUATOR check Does the FUSER IN ACTUATOR operate smoothly when there is paper and it is removed from the FUSER IN SENSOR detection section or when there is no paper and the FUSER IN SENSOR detection section is screened off With tool Go to step 11 Without tool Go to FIP 2 25 Replace the faulty part s 11 FUSER IN SENSOR check Is the FUSER IN SENSOR functioning properly By using the DIAG tool check...

Page 386: ... 3 Are you using curled paper or paper that tends to curl Change to different paper Go to step 4 4 MAIN P H FRAME ASSY check Are there foreign matters in the paper route of the MAIN P H FRAME ASSY Is there anything wrong with parts With tool Go to step 5 Without tool Go to FIP 2 12 Clean and replace the faulty part s 5 REGI SENSOR check Is the REGI SENSOR functioning properly By using the DIAG too...

Page 387: ...lt Isolation Procedure 5 35 9 P H DRIVE ASSY check Is the P H DRIVE ASSY improperly mounted Are the gears faulty Replace and remount the P H DRIVE ASSY Go to step 10 10 FEED SOLENOID check Is the FEED SOLENOID functioning properly Replace the MCU PWB Go to FIP 2 6 ...

Page 388: ...division check Can a test print single sheet consecutive printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 Dirt foreign matter check Is Are there dirt or foreign matters on the surface of the FRONT OHP SENSOR or REAR OHP SENSOR Remove dirt foreign matters Go to step 4 4 Transport r...

Page 389: ...upplied from the MSI tray Go to step 5 Replace the MCU PWB 5 MSI paper size setting check Does the paper size set by the DIAG tool or controller agree with the paper size set for the MSI tray Go to step 6 Alter the setting to agree with the actual paper size 6 Paper size detection mechanism check Does the paper size set in the concerned tray agree with the ON OFF combination of the 4 Paper Size Sw...

Page 390: ...oubleshooting Level 1 FIP Fault Isolation Procedure 5 38 8 REGI SENSOR check Is the REGI SENSOR functioning properly By using the DIAG tool check by Digital Input Test device code 29 Problem solved Go to FIP 2 25 Faulty FUSER IN SENSOR ...

Page 391: ...and check Step Check Treatment Yes No 1 Initial setting Use of parts of non EPSON specifications improper mounting damage distortion dirt adherence of foreign matter Main parts to check COMMUNICATION ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 Does the error occur when the power is turned ON Go to step 3 Go to the concerned FIP when other errors status codes occur 3 Load t...

Page 392: ...k If an error still occurs after replacing go to step 3 Go to step 3 3 P H Motor operation check When the test print is conducted does the P H Motor slightly operate and stop Go to step 5 Go to step 4 4 P H Motor operation check When the test print is conducted does the P H Motor stop Go to FIP 2 31 Replace the MCU PWB 5 Drive transmission check Does the rotor of the P H MOTOR ASSY turn smoothly C...

Page 393: ...ning the rotor of the P H MOTOR ASSY in the counterclockwise direction with your hand after lowering the FEED SOLENOID armature and making the gears mesh Go to step 12 Replace the faulty part s 12 2ND BTR CAM ASSY check Does the 2ND BTR CAM ASSY turn smoothly Check by turning the rotor of the P H MOTOR ASSY in the counterclockwise direction with your hand with the FUSER ASSY BELT CLEANER ASSY and ...

Page 394: ...check Does the Process Motor operate when test print is conducted Go to step 4 Go to step 9 4 PROCESS DRIVE ASSY mounting check Is the PROCESS DRIVE ASSY mounted securely Go to step 5 Remount the PROCESS DRIVE ASSY 5 TRANSFER ASSY mounting check Is the TRANSFER ASSY mounted securely Go to step 6 Remount the TRANSFER ASSY 6 PROCESS DRIVE ASSY check Does the output shaft of the PROCESS DRIVE ASSY tu...

Page 395: ...Troubleshooting Level 1 FIP Fault Isolation Procedure 5 43 10 PROCESS DRIVE ASSY check Is the PROCESS DRIVE ASSY functioning properly By using the DIAG tool check by Digital Input Test device code 10 Replace the MCU PWB Go to FIP 2 30 ...

Page 396: ...tting Use of parts of non EPSON specifications improper mounting damage distortion dirt adherence of foreign matter Main parts to check ROS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 Engine and controller division check Can a test print single sheet consecutive printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error s...

Page 397: ...curs after replacing go to step 3 Go to step 3 3 Rotary Motor drive check Does the Rotary Motor drive Check by conducting test print Go to step 4 Go to step 8 4 ROTARY FRAME ASSY rotation check Is the rotation of the ROTARY FRAME ASSY being blocked by foreign matters Remove the foreign matters Go to step 5 5 ROTARY SENSOR ASSY mounting check Is the ROTARY SENSOR ASSY properly mounted Go to step 6 ...

Page 398: ...Troubleshooting Level 1 FIP Fault Isolation Procedure 5 46 9 ROTARY MOTOR ASSY check Is the ROTARY MOTOR ASSY functioning properly By using the DIAG tool check by Digital Output Test device code 10 11 Replace the MCU PWB Go toFIP 2 32 ...

Page 399: ...ets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 ADC Sensor surface check Is Are there dirt or foreign matters adhering to the surface of the ADC Sensor Remove the foreign matters Go to step 4 4 ADC SENSOR ASSY mounting check Is the ADC SENSOR ASSY properly mounted With tool Go to step 5 Without tool ...

Page 400: ...ith the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 DEVE CONTACT ASSY check Is DEVE CONTACT ASSY contact surface distorted Are there foreign matters on the DEVE CONTACT ASSY contact surface Replace the DEVE CONTACT ASSY t Go to step 4 4 ADC Sensor surface check Is there dirt or foreign matter on the surface of the ADC Sensor Remove the...

Page 401: ...rface image check Are the various toner images developed on the Drum surface If you think there may be an image in the process of being transferred while printing turn the power OFF and visually inspect Cin50 patch on the Drum surface Go to step 8 Go to step 4 4 Drum surface picture image check If you think there may be an image in the process of being transferred while printing turn the power OFF...

Page 402: ...ensor check Is the ADC Sensor functioning properly By using the DIAG tool check by Digital Input Test device code 72 Go to step 10 Go to FIP 2 18 10 ADC Solenoid check Is the ADC Solenoid functioning properly By using the DIAG tool check by the Digital Output Test device code 67 Go to step 11 Go to FIP 2 19 11 Developer Assy replacement check Replace the Developer Assy with a new one with the conc...

Page 403: ...eets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 MCU PWB replacement check Replace the the MCU PWB Does the problem still occur Go to FIP 2 36 Problem solved Step Check Treatment Yes No 1 Initial setting Use of parts of non EPSON specifications improper mounting damage distortion dirt adherence of fo...

Page 404: ... 3 3 Retract check During the test printing does the 2ND BTR ASSY retract Check the operation of the BTR CAM SOLENOID from the rear side Go to step 4 With tool Go to step 9 Without tool Go toFIP 2 24 4 BTR CAM CLUTCH mounting check Is the BTR CAM CLUTCH mounted properly Go to step 5 Remount the BTR CAM CLUTCH 5 BTR CAM ASSY shape check Is the BTR CAM ASSY bent or distorted Remount the BTR CAM CLUT...

Page 405: ... code 57 using DIAG tool Go to step 4 With tool Go to step 9 4 FUSER DRIVE ASSY mounting check Is the FUSER DRIVE ASSY mounted properly Go to step 5 Remount the FUSER DRIVE ASSY 5 PROCESS DRIVE ASSY check Is the PROCESS DRIVE ASSY functioning properly Check by Digital Output Test device code 54 using DIAG tool Go to step 6 Replace the PROCESS DRIVE ASSY 6 2ND BTR ASSY mounting check Is the 2ND BTR...

Page 406: ...eplacing go to step 3 Go to step 3 3 FUSER CONNECTOR Is the FUSER CONNECTOR securely connected when the FUSER ASSY is mounted Go to step 4 Check the FUSER CONNECTOR 4 TEMP SENSOR ASSY check Does the problem occur as soon as the power is turned ON Go to FIP 2 27 Go to step 5 5 H R HEATER P R HEATER check Do the H R HEATER and P R HEATER light when the FUSER ASSY is cold and the power is turned ON G...

Page 407: ...ets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 TEMP SENSOR ASSY check Does the problem occur as soon as the power is turned ON Go to FIP 2 27 Go to step 4 4 H R HEATER P R HEATER check Do the H R HEATER and P R HEATER light when the FUSER ASSY is cold and the power is turned ON Go to step 5 Replace ...

Page 408: ...n matter Main parts to check ENVIRONMENT SENSOR P H HARNESS ASSY MCU PWB Replace and remount the concerned part s With tool Go to step 2 Without tool Go to step 3 2 Engine and controller division check Can a test print single sheet consecutive printing about 10 sheets each be performed normally with the engine alone Replace the MCU PWB Go to step 3 3 ENVIRONMENT SENSOR thermistor resistance check ...

Page 409: ...emount the concerned part s Go to step 2 2 Engine and controller division check Can a test print single sheet consecutive printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 FUSER FAN 1 check Is the FUSER FAN 1 functioning properly By using the DIAG tool check by the Analog Output Te...

Page 410: ...ount the concerned part s Go to step 2 2 Engine and controller division check Can a test print single sheet consecutive printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 FUSER CHUTE FAN check Is the FUSER CHUTE FAN functioning properly By using the DIAG tool check by the Analog Out...

Page 411: ... remount the concerned part s Go to step 2 2 Engine and controller division check Can a test print single sheet consecutive printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 DEVE FAN check Is the DEVE Rear FAN functioning properly By using the DIAG tool check by the Analog Output T...

Page 412: ...toner Life Warning Black toner Life Warning WASTE TONER BOX Full Warning DRUM CARTRIDGE Life Warning BELT CLEANER ASSY Life Warning 2ND BTR ASSY Warning Printer Life Warning DEVELOPER ASSY Y Life Warning DEVELOPER ASSY M Life Warning DEVELOPER ASSY C Life Warning DEVELOPER ASSY K Life Warning Step Check Treatment Yes No 1 Initial setting Use of parts of non EPSON specifications improper mounting d...

Page 413: ...em still occur when the power is turned On again Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON OFF repeatedly Go to step 7 Go to FIP 2 36 7 MCU replacement check Does the problem still occur after replacing with the normal MCU Check the printer controller Replace the MCU PWB ...

Page 414: ... WASTE TONER BOX TONER BOX HARNESS MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 WASTE TONER BOX transmission section check Is Are there dirt or foreign matters on the sensor transmission section on top of the WASTE TONER BOX Is there abnormality such as rising of the screen inside the WASTE TONER BOX Replace and clean the WASTE TONER BOX With tool Go to step 4 ...

Page 415: ...heck Is the operation for the actuator of the FRONT COVER ASSY is as follows When the FRONT COVER ASSY is closed turn on the FRONT COVER SWITCH R When the FRONT COVER ASSY is opened turn off the FRONT COVER SWITCH R With tool Go to step 4 Without tool Go to step 5 Replacement of faulty part s 4 FRONT COVER SWITCH R check Is the FRONT COVER SWITCH R functioning properly By using the DIAG tool check...

Page 416: ...er check If an error still occurs after replacing go to step 3 Go to step 3 3 MAIN P H FRAME ASSY mounting check Is the MAIN P H FRAME ASSY pushed in securely Go to step 4 Replace the faulty part s 4 MAIN P H FRAME ASSY mounting detection check Is the detection of the MAIN P H FRAME ASSY mounting functioning properly By using the DIAG tool check by the Digital Input Test device code 20 Replace the...

Page 417: ... alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 FUSER ASSY mounting check Is the FUSER ASSY pushed in securely Go to step 4 Replace the faulty part s 4 FUSER ASSY mounting detection check Is the detection of the FUSER ASSY mounting functioning properly Replace the MCU PWB Go to step 5 5 FUSER ASSY power supply check Is the voltage 5VDC between P...

Page 418: ...E SWITCH push in check Is the operation for the actuator of the EXIT UPPER ASSY is as follows When the EXIT UPPER ASSY is closed turn on the EXIT UPPER SWITCH When the EXIT UPPER ASSY is opened turn off the EXIT UPPER SWITCH With tool Go to step 4 Without tool Go to step 5 Replace the faulty part s 4 EXIT CHUTE SWITCH check Is the EXIT CHUTE SWITCH functioning properly By using the DIAG tool check...

Page 419: ...e Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 TURN CHUTE SWITCH push in check Is the operation for the actuator of the TURN CHUTE COVER is as follows When the TURN CHUTE COVER is closed turn on the TURN CHUTE SWITCH When the TURN CHUTE COVER is opened turn off the TURN CHUTE SWITCH With tool Go to step 4 Without tool Go to step 5 Replace the faulty...

Page 420: ...t consecutive printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 UNIVERSAL CASSETTE check Can the UNIVERSAL CASSETTE be mounted smoothly Go to step 4 Replace the faulty part s 4 BOTTOM PLATE ASSY check Does the BOTTOM PLATE ASSY lift normally when the UNIVERSAL CASSETTE is pushed in...

Page 421: ...printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 MSI HARNESS ASSY mounting check Is the MSI HARNESS ASSY properly mounted Go to step 4 Remount the CONNECTOR 4 The confirmation of the body HARNESS Is there a breakage or contact defect on HARNESS between the MCU PWB and the MSI ASSY...

Page 422: ...division check Can a test print single sheet consecutive printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 MSI HARNESS ASSY mounting check Is the MSI HARNESS ASSY properly mounted Go to step 4 Remount the CONNECTOR 4 The confirmation of the body HARNESS Is there a breakage or conta...

Page 423: ...rinter controller and turn the power ON after waiting 2 3 minutes Is the voltage between the pins as follows P33 6PIN P33 8PIN P33 5PIN P33 7PIN P33 3PIN P33 4PIN Check if the source voltage of each part is shorted Printer controller check If an error still occurs after replacing go to step 3 Go to step 3 3 Source voltage short check Disconnect the connectors other than J12 and J21 on the MCU PWB ...

Page 424: ...es not operate the printing at all Go to step 4 Go to step 3 3 Engine and controller division check Can a test print single sheet consecutive printing about 10 sheets each be performed normally with the engine alone Printer controller check If an error still occurs after replacing go to step 3 Go to FIP 2 1 FaultyLVPS ５ VDC 4 Does it become the Reset status during the printing operation Go to FIP ...

Page 425: ... Go to step 2 2 Environmental Improvement of the CONTROLLER PWB Up date the program to the latest one in the DIMM Replace and remount the concerned part s Go to step 3 3 CONTROLLER PWB Replacement check Replace the MCU PWB with the properly functioning one Does the problem still occur _ Problem solved Step Check Treatment Yes No 1 Initial setting Remove all of the option units related to electrici...

Page 426: ...ncerned part s Go to step 2 2 SD RAM check Remove all SD RAMs from the RAM slots in order of 0 1 and 2 and then re insert them in the RAM slots Make sure to insert each SD RAM one by one S0 S1 and S2 so that the SD RAM error can be identified Every time you insert a SD RAM make sure to follow the procedures below and repeat it for each one Turn the power off Add the SD RAM Turn the power on Insert...

Page 427: ...eplace and remount the concerned part s Go to step 2 2 Related IC Replacement According to the error follow the procedure below If Error C1100 occurs replace IC 16 If Error C1101 occurs replace IC 15 Other than those above replace the CONTROLLER PWB Replace and remount the concerned part s Problem solved Step Check Treatment Yes No 1 Initial setting Remove all of the option units related to electr...

Page 428: ...option units related to electricity and modules Bring everything back to a normal status Check if all connectors are properly connected to the CONTROLLER PWB Replace and remount the concerned part s Go to step 2 2 DIMM check Insert the DIMM in the socket until it locks securely NOTE Since the DIMM has the right direction to insert make sure to insert it in the correct direction Check if the DIMM i...

Page 429: ...onnected to the CONTROLLER PWB Replace and remount the concerned part s Go to step 2 2 IC 21 check According to the error follow the procedure below If Error C1200 occurs execute SelecType Init in the Panel Setting or replace IC 21 If Error C1101 occurs replace IC 21 Other than those above replace the CONTROLLER PWB Replace and remount the concerned part s Problem solved Step Check Treatment Yes N...

Page 430: ...l status Check if all connectors are properly connected to the CONTROLLER PWB Re insert the DIMM Replace and remount the concerned part s Go to step 2 2 MCU PWB initialization By using the Diag Command execute Slave Initialize Turn the power on and off Does the printer operate properly Problem solved Go to step 3 3 Related unit Replacement Replace the CONTROLLER PWB Replace and remount the concern...

Page 431: ...ormal Printing Step Check Treatment Yes No 1 Initial setting Remove all of the option units related to electricity and modules Bring everything back to normal status Check if all connectors are properly connected to the CONTROLLER PWB Re insert the DIMM Replace and remount the concerned part s Go to step 2 2 Related unit Replacement Replace the CONTROLLER PWB or IC 50 Replace and remount the conce...

Page 432: ... PWB MAIN HARNESS ASSY Replace and remount the concerned part s Go to step 2 2 LVPS check P32 15PIN P32 17PIN P33 1PIN P33 4PIN P33 2PIN P33 5PIN P33 3PIN P33 6PIN Go to step 3 Replace the LVPS 3 MAIN HARNESS ASSY continuity check Is there a continuity between J33 J12 Replace the MCU PWB Replace the MAIN HARNESS ASSY Step Check Treatment Yes No 1 Initial setting Use of parts of non EPSON specifica...

Page 433: ...y to FRONT COVER SWITCH L check Is the voltage between J199 1PIN P32 4PIN 5VDC Go to step 9 Replace the MAIN HARNESS ASSY 9 FRONT COVER SWITCH R check Is the voltage between P J198 1PIN P32 4PIN 5VDC Close the FRONT COVER ASSY and check Go to step 10 Replace the FRONT COVER SWITCH R 10 MAIN HARNESS ASSY check Is the voltage between P97 1PIN P32 4PIN 5VDC Close the FRONT COVER ASSY and check Go to ...

Page 434: ...s there a proper continuity between J71 3PIN J71 4PIN Go to step16 Replace the FUSER ASSY 16 MAIN P H FRAME ASSY check Is there a proper continuity between J91 1PIN J91 2PIN Go to step 17 Replace the MAIN P H FRAME ASSY 17 P H HARNESS ASSY continuity check Is there a proper continuity between P91 1PIN J97 2PIN Go to step 18 Replace the P H HARNESS ASSY 18 FUSER CONNECTOR continuity check Is there ...

Page 435: ...CASSETTE NO PAPER SENSOR power supply check Is the voltage between P16 30PIN P16 3PIN 5VDC Go to step 3 Go to FIP 2 1 3 CASSETTE NO PAPER detection signal power supply check Is the voltage between P16 32PIN P16 31PIN 5VDC Go to step 4 Replace the MCU PWB 4 CASSETTE NO PAPER detection signal check Is the voltage between P J16 32PIN P J16 31PIN as follows When transmitting paper the value is 0VDC Wh...

Page 436: ...SOR CASSETTE SENSOR HARNESS MCU PWB Replace and remount the concerned part s Go to step 2 2 LOW PAPER power supply check Is the voltage between P16 33PIN P16 34PIN 5VDC Go to step 3 Replace the MCU PWB 3 LOW PAPER detection signal power supply check Is the voltage between P J16 33PIN P J16 34PIN as follows When approx 20 sheets of paper are mounted the value is 0VDC When approx 200 sheets of parer...

Page 437: ...arts to check SIZE SWITCH ASSY MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 SIZE SWITCH ASSY power supply check Is there 5VDC between P16 28PIN P16 27PIN Go to step 3 Go to FIP 2 1 3 REGI Detection signal check Is there proper voltage between P J16 29PIN P J16 27PIN for each paper size Check by switching paper size while referring to 7 1 Paper Size Control in C...

Page 438: ...istortion dirt adherence of foreign matter Main parts to check FEED SOLENOID MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 FEED SOLENOID power supply check Is the voltage between P J17 29PIN P J17 30PIN 24VDC Go to step 3 Go to FIP 2 1 3 FEED SOLENOID check Is the continuity approx 90 Ω Ω Ω Ω between J17 29PIN J17 30PIN Replace the MCU PWB Go to step 4 4 MAIN HA...

Page 439: ... 2 1 3 EMPTY detection signal power supply check Is the voltage between P20 5PINH P20 4PIN 5VDC Go to step 4 Replace the MCU PWB 4 EMPTY detection signal check Is the voltage between P J020 14PIN P J20 4PIN when paper and 5VDC when no paper Is the voltage between P J16 32PIN P J16 31PIN as follows When reflecting paper the value is 0VDC When not reflecting no paper the value is 5VDC Replace the MC...

Page 440: ...P 2 1 3 MSI OHP detection signal power supply check Is the voltage between P20 12PIN P20 13PIN 5VDC Go to step 4 Replace the MCU PWB 4 MSI OHP detection signal check Is the voltage between P J20 12PIN P J20 13PIN as follows When reflecting paper the value is 0VDC When not reflecting no paper the value is 5VDC Use white paper to check transmission block status OHP film is transparent and therefore ...

Page 441: ...to step 3 3 Are you using curled paper or paper that tends to curl Change to different paper Go to step 4 4 EXIT LOWER ASSY check Is there foreign matter in the paper route of the EXIT LOWER ASSY Is there anything wrong with parts With tool Go to step 5 Without tool Go to FIP 2 29 Clean and replace the faulty part s 5 TOP EXIT SENSOR check Is the TOP EXIT SENSOR functioning properly By using the D...

Page 442: ...RNESS ASSY REGI MAIN HARNESS MSI HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 PICK UP CLUTCH power supply check Is the voltage between P J20 27PIN P J20 28PIN 24VDC Go to step 3 Go to FIP 2 1 3 PICK UP CLUTCH check Is there a continuity approx 169Ω Ω Ω Ωbetween J20 27PIN J20 28PIN Change paper Go to step 4 4 P H HARNESS ASSY check Is there a proper continuity betwee...

Page 443: ...P detection signal power supply check Is the voltage between P020 16PIN P020 15PIN 5VDC Go to step 4 Replace the MCU PWB 4 FRONT OHP detection signal check Is the voltage between P020 16PIN P020 15PIN as follows When reflecting paper the value is 0VDC When not reflecting no paper the value is 5VDC Use white paper to check transmission block status OHP film is transparent and therefore cannot be ac...

Page 444: ...SENSOR power supply check Is the voltage between P020B 20PIN P20 18PIN 5VDC Go to step 3 Go to FIP 2 1 3 REGI detection signal power supply check Is the voltage between P20 19PIN P20 18PIN 5VDC Go to step 4 Replace the MCU PWB 4 REGI detection signal check Is the voltage between P J20 19PIN P J20 18PIN as follows When reflecting paper the value is 0VDC When not reflecting no paper the value is 5VD...

Page 445: ... H HARNESS ASSY REGI HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 REGI CLUTCH power supply check Is there 24VDC between P J20 23PIN P J20 24PIN Go to step 3 Go to FIP 2 1 3 REGI CLUTCH check Is there continuity approx 171 Ω Ω Ω Ω between J20 23PIN J20 24PIN Replace the MCU PWB Go to step 4 4 P H HARNESS ASSY check Is there proper continuity between J20 P91B Go to st...

Page 446: ... ASSY REGI HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 REGI CLUTCH power supply check Is the voltage between P J20 25PIN P J20 26PIN 24VDC Go to step 3 Go to FIP 2 2 Faulty LVPS 24VDC 3 REGI CLUTCH check Is there a continuity approx 174 Ω Ω Ω Ω between J20 25PIN J20 26PIN Replace the MCU PWB Go to step 4 4 P H HARNESS ASSY check Is there a proper continuity between...

Page 447: ... TONER SENSOR power supply check Is the voltage between P22 14PIN P22 12PIN 5VDC Go to step 3 Go to FIP 2 1 3 WASTE TONER detection signal power supply check Is the voltage between P22 13PIN P22 12PIN 5VDC Go to step 4 Replace the MCU PWB 4 WASTE TONER detection signal check Is the voltage between P J22 13PIN P J22 12PIN as follows When transmitting WASTE TONER LOW level the value is 0VDC When blo...

Page 448: ... SENSOR power supply check Is the voltage between P22 15PIN P22 16PIN 5VDC Go to step 3 Go to FIP 2 1 3 TONER BOX detection signal power supply check Is the voltage between P22 14PIN P22 16PIN 5VDC Go to step 4 Replace the MCU PWB 4 TONER BOX detection signal check Is the voltage between P J22 14PIN P J22 16PIN as follows When transmitting WASTE TONER BOX the value is 0VDC When blocked no WASTE TO...

Page 449: ...n P14 1PIN P14 3PIN 5VDC Go to step 3 Go to FIP 2 1 3 SOS detection signal power supply check Is the voltage between P14 2PIN P14 3PIN 5VDC Go to step 4 Replace the MCU PWB 4 Scanner Motor operation check Does the Scanner Motor run when turned ON Check by listening Go to step 7 Go to step 5 5 Scanner Motor power supply check Is the voltage between P14 10PIN P14 11PIN Go to step 6 Go to FIP 2 2 6 S...

Page 450: ... the TOP COVER SWITCH when the TOP COVER ASSY is mounted Go to step 12 Replace the faulty part s 12 FRONT COVER SWITCH R continuity check Is there continuity between the terminals of the FRONT COVER SWITCH R when the FRONT COVER is closed and no continuity when it is open Go to step 13 Replace the FRONT COVER SWITCH R 13 FRONT COVER ASSY tab check Do the tabs of the FRONT COVER ASSY securely push ...

Page 451: ...adherence of foreign matter Main parts to check ADC SENSOR ASSY MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 ADC Sensor power supply check Is the voltage between P16 18PIN P16 21PIN 5VDC Go to step 3 Go to FIP 2 1 3 MAIN HARNESS ASSY continuity check Is there a proper continuity between J16 J81 Go to step 4 Replace the MAIN HARNESS ASSY 4 ADC SENSOR ASSY replac...

Page 452: ...age distortion dirt adherence of foreign matter Main parts to check ADC SENSOR ASSY MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 ADC Solenoid power supply check Is there 24VDC between P J16 22PIN P J16 23PIN Go to step 3 Go to FIP 2 2 3 ADC Solenoid check Is there a continuity approx 36 Ω Ω Ω Ω between J16 22PIN J16 23PIN Replace the MCU PWB Go to step 4 4 MAIN...

Page 453: ...eplace and remount the concerned part s Go to step 2 2 CARTRIDGE SENSOR power supply check Is the voltage between P17 5PIN P17 3PIN 5VDC Go to step 3 Go to FIP 2 1 3 CARTRIDGE detection signal power supply check Is the voltage between P017 4PIN P17 3PIN 5VDC Go to step 4 Replace the MCU PWB 4 CARTRIDGE detection signal check Is the voltage between P J17 4PIN P J17 3PIN as follows When transmitting...

Page 454: ...ge between P19 16PIN P19 17PIN 5VDC Go to step 3 Go to FIP 2 1 3 FUSER EXIT detection signal power supply check Is the voltage between P19 18PIN P19 17PIN 5VDC Go to step 4 Replace the MCU PWB 4 FUSER EXIT detection signal check Is the voltage between P J19 18PIN P J19 17PIN as follows When transmitting paper the value is 0VDC When blocked no paper the value is 5VDC Replace the MCU PWB Go to step ...

Page 455: ... remount the concerned part s Go to step 2 2 ROTARY SENSOR power supply check Is the voltage between P16 16PIN P16 14PIN 5VDC Go to step 3 Go to FIP 2 1 3 ROTARY SENSOR detection signal power supply check Is the voltage between P16 16PIN P16 14PIN 5VDC Go to step 4 Replace the MCU PWB 4 ROTARY SENSOR detection signal check Is the voltage between P J16 16PIN P J16A 14PIN as follows When transmittin...

Page 456: ... supply check Is the voltage between P16 7PIN P16 9PIN 5VDC Go to step 3 Go to FIP 2 1 3 TR0 SENSOR detection signal power supply check Is the voltage between P16 8PIN P16 9PIN 5VDC Go to step 4 Replace the MCU PWB 4 TR0 SENSOR detection signal check Is the voltage between P J16 8PIN P J16 9PINas follows When transmitting IBT BELT mark detection the value is 0VDC When blocked no IBT BELT mark dete...

Page 457: ...adherence of foreign matter Main parts to check BTR CAM CLUTCH MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 BTR CAM CLUTCH power supply check Is the voltage between P J18 23PIN P J18 24PIN 24VDC Go to step 3 Go to FIP 2 1 3 TRO SENSOR detection signal power supply check Is there a proper continuity between P J18 24PIN P J14 23PIN Replace the MCU PWB Go to step ...

Page 458: ...ltage between P19 4PIN P19 5PIN 5VDC Go to step 3 Go to FIP 2 1 3 FUSER IN detection signal power supply check Is the voltage between P19 6PIN P19 5PIN 5VDC Go to step 4 Replace the MCU PWB 4 FUSER IN detection signal check Is the voltage between P J19 6PIN P J19 5PIN as follows When transmitting paper the value is 0VDC When blocked no paper the value is 5VDC Replace the MCU PWB Go to step 5 5 FUS...

Page 459: ...een P19 16PIN P19 17PIN 5VDC Go to step 3 Go to FIP 2 1 3 FUSER EXIT detection signal power supply check Is the voltage between P19 14PIN P19 17PIN 5VDC Go to step 4 Replace the MCU PWB 4 FUSER EXIT detection signal check Is the voltage between P J19 14PIN P J19 17PIN as follows When transmitting paper the value is 0VDC When blocked no paper the value is 5VDC Replace the MCU PWB Go to step 5 5 MAI...

Page 460: ... Replace and remount the concerned part s Go to step 2 2 TEMP SENSOR ASSY thermistor check Is there dirt or foreign matter on the detection surface of the thermistor Replace and clean the TEMP SENSOR ASSY Go to step 3 3 TEMP SENSOR ASSY thermistor resistance check Is there 240k Ω Ω Ω Ω between P72 2PIN P72 4PIN at room temperature 18 200C Go to step 4 Replace and clean the TEMP SENSOR ASSY 4 FUSER...

Page 461: ...CAM SOLENOID FUSER HARNESS ASSY MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 CLEANER CAM SOLENOID power supply check Is the voltage between P J19 12PIN P J21 3PIN 24VDC Go to step 3 Go to FIP 2 2 3 CLEANER CAM SOLENOID check Is there a continuity approx 215 Ω Ω Ω Ω between J19 12PIN J19 13PIN Replace the MCU PWB Go to step 4 4 FUSER HARNESS ASSY check Is there ...

Page 462: ... step 2 2 TOP EXIT SENSOR power supply check Is the voltage between P17 9PIN P17 10PIN 5VDC Go to step 3 Go to FIP 2 1 3 TOP EXIT power supply check Is the voltage between P17 11PIN P17 10PIN 5VDC Go to step 4 Replace the MCU PWB 4 TOP EXIT detection signal check Is the voltage between P J17 11PIN P J17 10PIN as follows When transmitting paper the value is 0VDC When blocked no paper the value is 5...

Page 463: ...place and remount the concerned part s Go to step 2 2 PROCESS DRIVE ASSY power supply check Is the voltage between P J51 2 P J51 1 24VDC Go to step 4 Go to step 3 3 LVPS power supply check Is the voltage between J32 7 J32 11 24VDC Replace the MAIN HARNESS ASSY Go to FIP 2 2 4 PROCESS DRIVE ON signal voltage check Is the voltage between P18 17 P18 14 24VDC Go to step 5 Replace the MCU PWB 5 PROCESS...

Page 464: ...place and remount the concerned part s Go to step 2 2 P H MOTOR ASSY power supply check Is the voltage between P J49 2 P J49 1 Go to step 4 Go to step 3 3 LVPS power supply check Is the voltage between J32 8 J32 7 24VDC Replace the MAIN HARNESS ASSY Go to FIP 2 2 4 P H MOTOR ON signal voltage check Is the voltage between P18 11 P18 8 24VDC Go to step 5 Replace the MCU PWB 5 P H MOTOR SPEED signal ...

Page 465: ...WB Replace and remount the concerned part s Go to step 2 2 ROTARY MOTOR ASSY power supply check Is the voltage between P J246 3 P J246 1 24VDC Go to step 4 Go to step 3 3 LVPS power supply check Is the voltage between J32 3 J32 2 24VDC Replace the MAIN HARNESS ASSY Go to FIP 2 2 4 ROTARY MOTOR ASSY power supply check Is the voltage between P18 5 P18 4 5VDC Go to step 5 Go to FIP 2 2 5 ROTARY MOTOR...

Page 466: ...e distortion dirt adherence of foreign matter Main parts to check DISPENSE CLUTCH ASSY MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 DISPENSE CLUTCH ASSY power supply check Is the voltage between P18 19PIN J21 3PIN 24VDC Go to step 3 Go to FIP 2 2 3 DISPENSE CLUTCH ASSY check Is there a continuity approx 150 Ω Ω Ω Ω between P18 19PIN P21 3PIN Replace the MCU PWB...

Page 467: ...e distortion dirt adherence of foreign matter Main parts to check DEVE CLUTCH ASSY MAIN HARNESS ASSY MCU PWB Replace and remount the concerned part s Go to step 2 2 DEVE CLUTCH ASSY power supply check Is the voltage between P18 21PIN P21 3PIN 24VDC Go to step 3 Go to FIP 2 2 3 DEVE CLUTCH ASSY check Is there a continuity approx 150 Ω Ω Ω Ω between P18 21PIN P21 3PIN Replace the MCU PWB Go to step ...

Page 468: ...ace the DEVE WIRE 4 BCR CONNECTOR ASSY check Is the BCR CONNECTOR ASSY distorted damaged or improperly mounted Remount replace the BCR CONNECTOR ASSY Go to step 5 5 DEVE CONTACT PLATE ASSY check Is the DEVE CONTACT PLATE ASSY distorted damaged or improperly mounted Remount replace the DEVE CONTACT PLATE ASSY Go to step 6 6 2ND BTR ASSY check Is there proper continuity in the high voltage route ins...

Page 469: ...rocedure 5 117 10 MAIN HARNESS ASSY continuity check Is there a proper continuity between J16 J42 Go to step 11 Replace the MAIN HARNESS ASSY 11 MCU PWB replacement check Replace with the properly functioning MCU PWB Does the problem still occurs Replace the HVPS Problem solved ...

Page 470: ...ise Go to step 4 4 LVPS check Is the ground wire connected to the power switch inlet of the LVPS fastened securely Go to step 5 Fasten the ground securely 5 BCR CONNECTOR ASSY check Is the BCR CONNECTOR ASSY distorted damaged or improperly mounted Go to step 6 Remount replace the BCR CONNECTOR ASSY 6 DEVE CONTACT PLATE ASSY check Is the DEVE CONTACT PLATE ASSY distorted damaged or improperly mount...

Page 471: ...dered as a noise comes from outside 10 MCU PWB replacement check Replace with the properly functioning MCU PWB Does the problem still occur Go to step 11 Problem solved 11 Initial Check Double check the main parts and the related to the main parts Does the problem still occur Replace and remount the concerned part s Problem solved 1 ...

Page 472: ...engine alone is good the problem is caused by the engine If it appears there is something wrong with the printer controller replace the printer controller and interface cable with properly functioning parts and see if that works If the problem continues to occur check the host side and perform troubleshooting efficiently using the following picture quality FIP according to a description of the pro...

Page 473: ...d π 90 mm Description initial check White The picture image has a white streak in the paper transport direction or is too light Initial check Use of parts of incorrect specifications improper mounting damage distortion dirt adherence of foreign matter Main parts to check DRUM CARTRIDGE HVPS ROS ASSY MCU PWB HEAT ROLL PRESSURE ROLL MAIN FUSER ASSY Ite m Check Treatment when there is a problem 1 Fau...

Page 474: ...r dirt in the path of the laser beam from the ROS ASSY to the drum 3 Faulty electrification developing Is the toner image on the drum properly developed If you suspect that primary transfer is in progress while printing turn the power OFF and visually inspect the drum position prior to transfer Check Faulty HVPS 4 Faulty primary transfer Is the toner image on the drum properly transferred to the T...

Page 475: ...f covered with paper Check Faulty ROS ASSY 3 Faulty DRUM CARTRIDGE No longer occurs when replaced with new DRUM CARTRIDGE Replace DRUM CARTRIDGE Description initial check White The picture image has a white streak in the paper transport direction or is too light Initial check Use of parts of incorrect specifications improper mounting damage distortion dirt adherence of foreign matter Main parts to...

Page 476: ...re image has a white streak in the paper transport and vertical directions or is too light Initial check Use of parts of incorrect specifications improper mounting damage distortion dirt adherence of foreign matter Main parts to check Developer Assy DRUM CARTRIDGE 2ND BTR HEAT ROLL PRESSURE ROLL FEED ROLL ASSY Ite m Check Treatment when there is a problem 1 Cyclic check Is the problem cyclical Rep...

Page 477: ... not much humidity 2 Faulty electrification developing Is the toner image on the drum properly developed If you suspect that primary transfer is in progress while printing turn the power OFF and visually inspect the drum position prior to transfer Check Faulty HVPS 3 Faulty primary transfer Is the toner image on the drum properly transferred to the TRANSFER BELT ASSY If you suspect that primary tr...

Page 478: ...RIDGE is replaced Replace DRUM CARTRIDGE Description initial check Skew When picture image printing is skewed Initial check Use of parts of incorrect specifications improper mounting damage distortion dirt adherence of foreign matter Main parts to check MAIN FUSER ASSY MSI FEED ASSY FEED ROLL ASSY TURN ROLL ASSY MAIN P H FRAME ASSY Ite m Check Treatment when there is a problem 1 Faulty paper mount...

Page 479: ...aper transport route problem Are there burrs foreign matter or dirt in the paper transport route Clean replace concerned part s 5 Paper roll problem Is there foreign matter dirt on the paper transport rolls Are they distorted or not functioning properly Clean replace concerned part s Description initial check Unsatisfactory Fixing When the image can be easily rubbed off with your hand Initial chec...

Page 480: ...C H A P T E R 6 MAINTENANCE ...

Page 481: ...it is still very hot shortly after operation After servicing note the following points when turning on the printer for operation Continues to the next page W A R N I N G Do not catch your hands and clothes in the rotating parts such as rollers and fans Keep your hands off the electrical terminals and high voltage components such as HVPS and LVPS Be aware that this printer emits laser beam when the...

Page 482: ...EPSON AcuLaser C8500 Revision C Chapter 6 Maintenance 6 3 6 1 1 On site Service Flow Figure 6 1 On site Service Flowchart ...

Page 483: ...life of the Consumables Regularly Replaced Parts and Main After Sales Parts and the printer s condition REAPPEARANCE OF THE TROUBLE Perform troubleshooting described in Chapter 5 1 Referring to Section 5 1 4 Self Diagnostic Function by LCD Message identify the trouble and perform necessary troubleshooting 2 If necessary proceed to Level 1 FIP and Level 2 FIP 3 If a print quality problem completely...

Page 484: ...e fan ducts and fans can heat up the air inside of the printer which may cause a printer malfunction PREVENTIVE MAINTENANCE CHECKING THE CONSUMABLES AND REGULARLY REPLACED PARTS In addition to repair and maintenance of the printer preventive maintenance is required to maintain the printer s good operation and to prevent any potential problem in other parts that the serviced parts 1 After repairing...

Page 485: ...hapter 6 Maintenance 6 6 FINAL CHECKOUT 1 Check exterior view of the printer 2 If necessary give an instruction to the users How to clear the paper jam error How to replace the consumables What kind of paper can be used for the printer ...

Page 486: ...esets the counter values for total printed page number and total color print pages The Regularly Replaced parts refer to MAIN FUSER ASSY The Main After Sales parts refer to 2nd BTR IBT CLEANER IBT BELT and C M Y K DEVELOPER After replacing the parts mentioned above return to the Maintenance Menu and reset the concerned counter values After resetting the counter values be sure to open and close the...

Page 487: ... interface cables are disconnected Service Call Error is not indicated Before exiting the menu ensure the engine is not live If not you can turn the printer off C A U T I O N If you reset the counter using the Maintenance Mode open the cover once Be sure the Cover Open Error is shown then close the cover If this operation is not properly done the counter cannot be reset due to the engine function ...

Page 488: ... the Fuser Unit used The indicated value is the total number of sheets printed after the FuserUnit Clear is executed in the Maintenance Mode 6 2nd BTR Shows the amount of the 2nd BTRused The indicated value is the total number of sheets printed after the 2nd BTR Clear is executed in the Maintenance Mode 7 IBT Cleaner Shows the amount of the IBT Cleaner used The indicated value is the number of she...

Page 489: ...ows the offset value of the 2nd BTR transfer voltage for Coated Paper 1 Card Shows the offset value of the 2nd BTR transfer voltage for the card Envelope Shows the offset value of the 2nd BTR transfer voltage for the envelope 11 Engine Version MCU The value calculated from the engine side with the mechanism controller version in the printer Example For Version 1 03 02 the value is indicated as 010...

Page 490: ...planes Color Pages pages Jam Counts ET Cartridge C Toner 100msec M Toner 100msec Y Toner 100msec K Toner 100msec Xero CRU cycle Fuser pages 2nd BTR pages IBT Cleaner pages IBT Belt cycle Development Unit C Development planes M Development planes Y Development planes K Development planes 2nd BTR Offset Plain Paper 1 Transparency Cover Coated Paper 1 Card Envelope Engine Version MCU Duplex LCC Error...

Page 491: ...1 200 12 000 12 250 100msec 100msec 100msec 100msec Supplying toner to the Developer Assy Detection of a new C Toner Cartridge Detection of a new M Toner Cartridge Detection of a new Y Toner Cartridge Detection of a new K Toner Cartridge MCU PWB Xero CRU Engine 110 000 Cycle The photoconductor unit rotates Detection of a new Photoconductor DRUM CARTRIDGE Fuser Oil Fuser Oil Rate Fuser Dispense Fus...

Page 492: ... LCD Step 2 Life END indication on the LCD As for the toner level the users can check by printing a status sheet or panel operation or EPSON printer window 3 The service men on the other hand can access to detailed information including the life end warning by using the Maintenance Mode Referring to the statistics replacement timing for each item is assumed The following sections show the replacem...

Page 493: ... the operation described in the figure below Figure 6 5 TONER CARTRIDGE Replacement 1 C A U T I O N Ensure that the colors of the TONER CARTRIDGE to be installed and the toner cartridge installation position are the same Never use the TONER CARTRIDGE once taken out If you have moved the TONER CARTRIDGE from a warm place into a cold place leave it in a room temperature for 1 hour or more Otherwise ...

Page 494: ...ut of the slot Figure 6 7 TONER CARTRIDGE Replacement 3 NOTE Put the cartridge in a plastic bag and dispose of it as inflammable 5 Hold a new TONER CARTRIDGE by the right and left ends and gently shake it up and down to distribute toner evenly Figure 6 8 TONER CARTRIDGE Replacement 4 6 Reinsert the cartridge following the steps below 1 Hold the cartridge the orange arrow side up Insert it all the ...

Page 495: ...egrees so that the z symbol on the knob is aligned with the locking symbol When the knob is turned all the way and set horizontally TONER CARTRIDGE replacement is completed Figure 6 10 TONER CARTRIDGE Replacement 6 7 To replace the TONER CARTRIDGEs for other colors follow the same operations described in Step 3 to 6 8 Close the FRONT COVER and check if the LCD is indicating Ready NOTE The TONER CA...

Page 496: ...ow See the right of Figure 6 12 below Figure 6 12 DRUM CARTRIDGE Replacement 1 C A U T I O N When replacing the DRUM CARTRIDGE be sure to turn the printer power off DO NOT touch the surface of the photoconductor a blue cylindrical part with your hands Also handle it with a care since scratches and oil from your skin can damage its surface and may affect print quality Avoid exposing the DRUM CARTRI...

Page 497: ...old the orange handle on top of the DRUM CARTRIDGE and place the right and left guide edges on the rails in the printer Then insert the DRUM CARTRIDGE straight into the printer Be sure to push it enough to feel resistance NOTE Ensure that the photoconductor a blue cyrindrical part is not in contact with any parts inside the printer during its installation Figure 6 15 DRUM CARTRIDGE Replacement 4 9...

Page 498: ... one the WASTE TONER BOX does not need to be replaced 1 Open the FRONT COVER Figure 6 16 FRONT COVER Open 2 Hold the lever and push down the tab of the WASTE TONER BOX Figure 6 17 WASTE TONER BOX Replacement 1 3 Pull the WASTE TONER BOX straight out Figure 6 18 WASTE TONER BOX Replacement 2 C A U T I O N DO not reuse the toner in the WASTE TONER BOX Be sure to put the used WASTE TONER BOX in a pla...

Page 499: ...Maintenance 6 20 4 Hold the handle on a new WASTE TONER BOX and insert it into the printer all the way until the tab clicks Figure 6 19 WASTE TONER BOX Replacement 3 5 Close the FRONT COVER The printer automatically returns to the ready status ...

Page 500: ...elevant section in Chapter 3 After replacing any of these parts be sure to reset the relevant counter in the Maintenance Menu 6 6 Installation This section provides a guideline in order to install the printer on its place POWER GROUND The printer must be properly and reliably connected to earth W A R N I N G The printer must be connected singly by a power cable to an electrical outlet capable of s...

Page 501: ...ding DRUM CARTRIDGE and UNIVERSAL CASSETTE DRUM CARTRIDGE TONER CARTRIDGE Y TONER CARTRIDGE M TONER CARTRIDGE C TONER CARTRIDGE BK EXIT TRAY ASSY Power cord SETUP PROCEDURE For details see the Operating Instructions manual 1 Make sure that all parts packed with the printer are present 2 Remove the fastening tape from the printer 3 Remove the fasteners 4 Mount the EXIT TRAY ASSY on the FUSER ASSY 5...

Page 502: ...paper in the UNIVERSAL CASSETTE NOTE Observe the following when setting paper 1 Align all 4 corners of the paper before setting 2 Place the paper underneath the tabs in the front of the paper tray 3 Adjust the paper guide to the size of the paper 11 Adjust the paper guide to the size of the paper Insert the UNIVERSAL CASSETTE and close 12 Set paper in the MSI TRAY ASSY NOTE Observe the following w...

Page 503: ...C H A P T E R 7 APPENDIX ...

Page 504: ...PL10 2 Paper Exit PL4 4 MSI Paper Transportation PL11 1 Drive PL5 1 Omitted PL12 1 Frame PL6 1 Xerographics PL13 1 Electrical PL7 1 Development PL13 2 Electrical PL7 2 Development PL14 1 Controller PL8 1 IBT PL20 1 Option Tray PL8 2 IBT PL20 2 Option Tray PL8 3 IBT PL21 1 Option Tray PL8 4 IBT The numbers in each illustration correspond to the parts list number for that illustration PL X Y Z indic...

Page 505: ... 41 LEFT O H COVER 01 1 50 RIGHT LOWER COVER 01 1 51 RIGHT COVER ASSY 01 1 60 PANEL 01 1 70 LOGO Plateaus 02 1 01 UNIVERSAL TRAY 02 1 03 PLATE LINK SPRING 02 1 04 PLATE LINK 02 1 05 BOTTOM PLATE ASSY 02 1 06 TRAY N F SPRING 02 1 08 FRONT GUIDE 02 1 09 FRONT SNUBBER 02 1 10 SNUBBER STOPPER 02 1 11 REAR GUIDE ASSY 02 1 15 REAR GUIDE SPRING 02 1 16 END GUIDE 02 1 17 TRAY SIZE ACUTUATOR 02 1 18 CESTOR...

Page 506: ...4 2 26 LIFT MOTOR ASSY 04 3 05 E R M SENSOR 04 3 06 SENSOR 04 3 07 MSI N P ACTUATOR Table 7 1 Parts List Part No Part Name 04 3 20 MSI FEED FRAME ASSY 04 3 23 BOTTOM PLATE SENSOR 04 3 28 ROLL 04 3 29 FEED ROLL 04 3 39 ETD SPRING 04 3 41 PICK UP CLUTCH 04 3 45 RETARD ROLL 04 4 03 P REGI ROLL ASSY 04 4 04 PRE REGI CLUTCH ASSY 04 4 05 PRE REGI CLUTCH ASSY 04 4 16 REGI HARNESS ASSY 04 4 20 P H FRONT R...

Page 507: ... 04 BOTTOM PLATE SENSOR 09 1 02 MAIN FUSER ASSY 09 1 03 FUSER TRAY ASSY 09 2 03 E R M SENSOR 09 2 04 E R M SENSOR 09 2 06 TEMP SENSOR ASSY Table 7 1 Parts List Part No Part Name 09 2 10 PRESSURE ROLL 09 2 13 LOWER GUIDE ASSY 09 2 25 HEAT ROLL 09 2 26 BEARING 09 2 28 H R GEAR 09 2 29 H R RING 09 2 30 FUSER UPPER ASSY 09 2 31 STS SEAL 09 2 32 SEAL Q L 09 2 37 H R HEATER 09 2 38 P R HEATER 09 2 43 FU...

Page 508: ...1 1 06 DRIVE MOTOR PWB 11 1 10 PROCESS DRIVE ASSY 11 1 20 ROTARY MOTOR ASSY 11 1 21 ROTARY MOTOR DRIVE PWB 11 1 22 DISPENSE CLUTCH ASSY 11 1 23 DEVE CLUTCH ASSY Table 7 1 Parts List Part No Part Name 12 1 28 FRAME FOOT 12 1 29 SHEET CLAMP 13 1 01 LVPS 13 1 02 HVPS 13 1 03 TOP COVER SWITCH 13 1 05 DEVE FAN 13 1 14 BCR WIRE 13 1 15 DEVE WIRE 13 1 16 MAIN HARNESS ASSY 13 1 17 FUSER CONNECTOR 13 1 20 ...

Page 509: ...e parts are for AcuLaser C8500 as well as LP 8500C Figure 7 1 PL1 1 Cover Figure 7 2 PL2 1 Paper Tray LP 8500C 1 1 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts 70 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 13 1 10221 Rev 01 ...

Page 510: ...PL3 1 Paper Feeder Figure 7 4 PL4 1 MSI Paper Transportation 1 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 3 1 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts ...

Page 511: ...sportation 2 Figure 7 6 PL4 3 MSI Paper Transportation 3 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 4 2 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 4 3 10221 Rev 01 ...

Page 512: ...per Transportation 4 Figure 7 8 L6 1 Xerographics The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 4 4 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 6 1 10221 Rev 01 ...

Page 513: ...evelopment 1 Figure 7 10 PL7 2 Development 2 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 7 1 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 7 2 10221 Rev 01 ...

Page 514: ...1 PL8 1 IBT 1 Figure 7 12 PL8 2 IBT 2 LP 8500C 8 1 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 8 2 10221 Rev 01 ...

Page 515: ...gure 7 14 PL9 1 Fusing 1 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 8 3 10221 Rev 01 ALL this page Except Ref 02 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 9 1 10221 Rev 01 ...

Page 516: ...L9 2 Fusing 2 Figure 7 16 PL9 3 Fusing 3 LP 8500C 9 2 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 9 3 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts ...

Page 517: ...sing 4 Figure 7 18 PL10 1 Paper Exit 1 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 9 4 10221 Rev 01 WITH 22 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 10 1 10221 Rev 01 ...

Page 518: ... 2 Paper Exit 2 Figure 7 20 PL11 1 Drive LP 8500C 10 2 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 11 1 10221 Rev 01 ...

Page 519: ... 1 Frame Figure 7 22 PL13 1 Electrical 1 LP 8500C 12 1 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 13 1 10221 Rev 01 ...

Page 520: ... Electrical 2 Figure 7 24 PL14 1 Controller The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 13 2 10221 Rev 01 The parts to which no reference number is assigned will not be available as after sale service parts LP 8500C 14 1 10221 Rev 01 ...

Page 521: ...PPENDIX Wiring Diagrams 7 19 7 3 Wiring Diagrams This section describes the connector locations P and J stand for Plug and Jack respectively 7 3 1 P J Locations See the following figures for the P J locations Figure 7 25 P J Location 1 ...

Page 522: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams 7 20 Figure 7 26 P J Location 2 Figure 7 27 P J Location 3 ...

Page 523: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams 7 21 Figure 7 28 P J Location 4 Figure 7 29 P J Location 5 ...

Page 524: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams 7 22 Figure 7 30 P J Location 6 Figure 7 31 P J Location 7 ...

Page 525: ...ESS ASSY 19 F 207 Connects MCU PWB and MAIN HARNESS ASSY 20 G 206 Connects MCU PWB and P H HARNESS ASSY 21 G 207 Connects MCU PWB and MAIN HARNESS ASSY 22 G 206 Connects MCU PWB and MAIN HARNESS ASSY 23 G 207 Connects MCU PWB and P H HARNESS ASSY 32 D 610 Connects LVPS and MAIN HARNESS ASSY 33 D 611 Connects LVPS and MAIN HARNESS ASSY 34 G 610 F 710 Connects LVPS and FUSER CONNECTOR 35 D 610 Not u...

Page 526: ...ARNESS ASSY Table 7 2 P J Location continued P J Coordinates Description 72 F 813 Connects FUSER EXIT SENSOR 1 FUSER EXIT SENSOR 2 TEMP SENSOR ASSY and FUSER HARNESS ASSY 74 H 813 Connects EXCHANGE SOLENOID and FUSER HARNESS ASSY 74A H 813 Connector inside FUSER HARNESS ASSY 75 H 807 Connects LOWER INV SOLENOID and FUSER HARNESS ASSY 75A H 807 Connector inside FUSER HARNESS ASSY 76 G 814 Connects ...

Page 527: ...SSY 104A Connector inside MAIN HARNESS ASSY 105 D 209 Connects ENVIRONMENT SENSOR and P H HARNESS ASSY Table 7 2 P J Location continued P J Coordinates Description 106 F 209 Connects LOW PAPER SENSOR and TRAY SENSOR HARNESS 106A F 209 Connector inside TRAY SENSOR HARNESS 107 E 210 Connects TRAY NO PAPER SENSOR and TRAY SENSOR HARNESS 108 Connects MAIN HARNESS ASSY and TURN CHUTE HARNESS 108A Conne...

Page 528: ...SSY and MSI HARNESS ASSY Table 7 2 P J Location continued P J Coordinates Description 202 Connects PICK UP CLUTCH and REGI HARNESS ASSY 202A Connector inside MSI HARNESS ASSY 203 F 409 Connects EMPTY SENSOR and REGI HARNESS ASSY 204 G 409 Connects PITCH SENSOR and REGI HARNESS ASSY 205 E 410 Connects MSI HARNESS ASSY and MSI TRAY HARNESS 206 G 410 Connects MSI GUIDE SWITCH and MSI TRAY HARNESS 207...

Page 529: ... and 1ST BTR WIRE F B 608 Connects HVPS and CONTACT ROLL WIRE T1 I 806 Connects H R HEATER and HEATER WIRE T2 I 806 Connects P R HEATER and HEATER WIRE T3 D 509 Connects IBT REAR BRACKET and 1ST BTR WIRE T4 D 509 Connects IBT REAR BRACKET and CONTACT ROLL WIRE Table 7 2 P J Location continued P J Coordinates Description ...

Page 530: ...by a connector P J or screw A number inside the box indicates connector number Indicates a connector P J written across several locations The number inside the box indicates connector number Boxes with part names inside indicate those parts The part name shown here indicates item Z of plate PL XY in Section 7 2 Parts List and Exploded Diagrams Indicates functional element inside part Indicates a s...

Page 531: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 29 Figure 7 33 Overall Wiring Connection Diagram ...

Page 532: ...S 4 MCU PWB TURN CHUTE SWITCH CARTRIDGE SENSOR ROTARY SENSOR DEVE CLUTCH ASSY DISPENSE CLUTCH ASSY Connects MCU PWB and TURN CHUTE SWITCH Connects MCU PWB and CARTRIDGE SENSOR Connects MCU PWB and ROTARY SENSOR Connects MCU PWB and DEVE CLUTCH ASSY Connects MCU PWB and DISPENSE CLUTCH ASSY 5 MCU PWB LVPS ROTARY MOTOR PWB ROTARY MOTOR ASSY Connects MCU PWB and ROTARY MOTOR PWB Connects LVPS and ROT...

Page 533: ...GI MSI INTL SW Connects MCU PWB and COMMUNICATION PWB 12 MCUPWB FULLSTACKSENSOR TOPEXITSENSOR EXITCHUTESWITCH EXIT CHUTE FAN FUSER FAN 1 DEVE FAN Connects MCU PWB and TOP EXIT SENSOR Connects MCU PWB and FULL STACK SENSOR Connects MCU PWB and EXIT CHUTE SWITCH Connects MCU PWB and EXIT CHUTE FAN Connects MCU PWB and FUSER FAN 1 Connects MCU PWB and DEVE FAN 13 MCU PWB CONTROLLER PWB OPERATION PANE...

Page 534: ...tes connection between parts by conductor such as leaf spring Also indicates signal wire name and details Arrows on the line indicate signal direction P J XX 1 2 MCU PWB PL X Y Z Scanner Assy T1 A A 24VD CR Indicates function and signal theoretical value Low L High H when operating Also indicates voltage when signal is High Indicates function and signal theoretical value Low L High H when function...

Page 535: ...aser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 33 Connection Diagram 1 MCU PWB LVPS ROS ASSY FUSER ASSY MAIN P H FRAME ASSY FRONT COVER SWITCH R FRONT COVER SWITCH L TOP COVER SWITCH 1 2 ...

Page 536: ...tion HEATER ON L 5VDC Control signal for P R HEATER and H R HEATER on off 24VDC I L Detection of interlock connector interlock switches and the LVPS relay control signal 5VDC LD Supply voltage of the LD ASSY of the ROS ASSY SOS Scanning start reference signal based on input of light to SOS SENSOR of laser beam SOS PWB VREF Reference voltage for target value for laser power LD ENB Control signal fo...

Page 537: ...r C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 35 Connection Diagram 2 MCU PWB ADC SENSOR ASSY ERASE LAMP ASSY BTR CAM CLUTCH CRUM ASSY WASTE TONER SENSOR TONER BOX SENSOR BTR WHEEL SENSOR 1 2 ...

Page 538: ...ssued by the ADC SENSOR of ADC SENSOR ASSY Analog value ADC SOLENOID ON L 24VDC On off control signal for ADC solenoid of ADC SENSOR ASSY ERASE LAMP ON H 5VDC Control signal for LED on off in ERASE LAMP ASSY BTR CAM CLUTCH ON L 24VDC On off control signal for BTR CAM CLUTCH WASTE TONER SENSED H 5VDC WASTE TONER BOX full detection signal issued by the WASTE TONER SENSOR TONER BOX SENSED L 5VDC Wast...

Page 539: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 37 Connection Diagram 3 MCU PWB HVPS LVPS 1 2 ...

Page 540: ... control signal for 2ND BTR output 1BTR I MONI Voltage monitor signal for 1ST BTR output Analog value 1BTR CONT Output control signal for 1ST BTR output Analog value 1BTR ON L 24VDC On off control signal for 1ST BTR output DB DC CONT Output control signal for DB output DC element Analog value DB AC ON L 24VDC On off control signal for DB output DC element DB DC ON L 24VDC On off control signal for...

Page 541: ...PSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 39 Connection Diagram 4 MCU PWB TURN CHUTE SWITCH CARTRIDGE SENSOR ROTARY SENSOR DEVE CLUTCH ASSY DISPENSE CLUTCH ASSY 1 2 ...

Page 542: ...H 5VDC Sensor power ON High OFF Low signal for USED CART SENSOR and CARTRIDGE SENSOR CARTRIDGE SENSED L 5VDC Toner cartridge present Low not present High detection signal issued by the CARTRIDGE SENSOR ROTARY SENSED H 5VDC ROTARY FRAME ASSY protrusion detection signal issued by the ROTARY SENSOR DEVE CLUTCH ON L 24VDC On off control signal for DEVE CLUTCH DISPENSE CLUTCH ON L 24VDC On off control ...

Page 543: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 41 Connection Diagram 5 MCU PWB LVPS ROTARY MOTOR PWB ROTARY MOTOR ASSY 1 2 ...

Page 544: ...TOR HOLD L 5VDC Hold current control signal of ROTARY MOTOR ASSY ROTARY MOTOR ON L 5VDC Drive power on off signal for ROTARY MOTOR ASSY ROTARY MOTOR CLOCK Clock signal for ROTARY MOTOR ASSY A A B B Excitation signal for ROTARY MOTOR ASSY Table 7 10 Excitation Sequence Phase Steps 2 phase excitation 1 2 3 4 5 6 7 8 Phase B B A Phase A Table 7 11 Rotation Hold According to Signal ROTARY MOTOR ON L 5...

Page 545: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 43 Connection Diagram 6 MCU PWB LVPS TR0 SENSOR DRIVE MOTOR PWB FUSER MOTOR ASSY P H MOTOR ASSY PROCESS DRIVE ASSY 1 2 ...

Page 546: ...IL signal is High FUSER MOTOR ASSY description Motor type Permanent magnet magnetic field DC servomotor Motor control speed 1667rpm 0 5 standard speed 833 5rpm 0 5 half speed 555 667rpm 1 3 speed Direction of rotation Counterclockwise direction as viewed from rear of printer Rotation fault detection Detects abnormality when a variation in control speed of 6 25 or greater occurs FUSER FAIL signal i...

Page 547: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 45 Connection Diagram 7 MCU PWB LVPS MAIN FUSER ASSY 1 2 ...

Page 548: ...al line Description AC N Neutral side of AC input from power source supply voltage for heater AC L Line side of AC input from power source supply voltage for heater TEMP SENSED Surface temperature data of heat roll measured by the thermistor of TEMP SENSOR ASSY to determine the FUSER control temperature Analog value FUSER EXIT PAPER SENSED L 5VDC Paper detection signal for fuser issued by the FUSE...

Page 549: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 47 Connection Diagram 8 MCU PWB FUSER TRAY ASSY ENVIRONMENT SENSOR 1 2 ...

Page 550: ...SOLENOID in push direction face up discharge EXCHANGE SOLENOID PULL ON L 24VDC On off control signal for EXCHANGE SOLENOID in pull direction face down discharge CLEANER CAM SOLENOID ON L 24VDC On off control signal for CLEANER CAM SOLENOID FUSER CHUTE FAN ON H 24VDC On off control signal for FUSER CHUTE FAN FUSER IN PAPER SENSED L 5VDC Paper detection signal for FUSER unit issued by the FUSER IN S...

Page 551: ...SSY TRAY NO PAPER SENSOR LOW PAPER SENSOR FEED SOLENOID TURN CLUTCH 1 2 NOTE The numbers 1 2 3 4 preceding the signal line name indicate the cassette number Cassette 1 is the paper feed unit consisting of a paper cassette beneath the printer cassette 2 is the top cassette of the optional feeder unit and cassette 3 is the second ...

Page 552: ...signal for size of paper in cassette 1 Analog value 1 FEED SOLENOID ON L 24VDC On off control signal for cassette 1 FEED SOLENOID 1 TRAY PAPER SENSED L 5VDC Signal for detecting presence of paper in the paper cassette issued by the TRAY NO PAPER SENSOR High Paper not detected Low Paper detected 1 LOW PAPER SENSED L 5VDC Signal for detecting when paper in the paper cassette is low issued by the TRA...

Page 553: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 51 Connection Diagram 10 MCU PWB MAIN P H FRAME ASSY 1 2 ...

Page 554: ...by FRONT OHP SENSOR For more information concerning front back detection for OHP film see Section TBD OHP Front Back Detection Control in Chapter 2 REAR OHP WHITE SENSED L 5VDC White strip detection signal for OHP film for color by FRONT OHP SENSOR For more information concerning front back detection for OHP film see Section TBD OHP Front Back Detection Control in Chapter 2 PRE REGI CLUTCH ON L 24...

Page 555: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 53 Connection Diagram 11 MCU PWB MAIN P H FRAME ASSY MSI ASSY REGI MSI INTL SW COMMUNICATION PWB 1 2 ...

Page 556: ...54 Table 7 18 Signal Description 11 Signal line Description EMPTY SENSED L 5VDC Signal for detecting presence of paper in the MSI ASSY issued by the EMPTY SENSOR High Paper not detected Low Paper detected PITCH SENSED L 5VDC TBD LEVEL SENSED L 5VDC TBD BOTTOM PLETE SENSED L 5VDC TBD ...

Page 557: ...SON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 55 Connection Diagram 12 MCU PWB FULL STACK SENSOR TOP EXIT SENSOR EXIT CHUTE SWITCH EXIT CHUTE FAN FUSER FAN 1 DEVE FAN 1 2 ...

Page 558: ...ASSY issued by the TOP EXIT SENSOR EXIT CHUTE SWITCH ON L 5VDC Signal for detecting whether exit upper ASSY is open off or closed on issued by the EXIT CHUTE SWITCH FULL STACK SENSED L 5VDC Signal for detecting full stack status of TOP COVER paper issued by the FULL STACK SENSOR High Not Full Stack Low Full Stack FUSER FAN HALF SPEED H 24VDC FUSER FAN high speed Low low speed High rotation control...

Page 559: ...EPSON AcuLaser C8500 Revision C APPENDIX Wiring Diagrams and Signal Information 7 57 Connection Diagram 13 MCU PWB CONTROLLER PWB OPERATION PANEL CONTROLLER FAN 1 2 ...

Page 560: ...ifications Signals between the CONTROLLER PWB and operation pane differ according to OEM customized specifications Controller description Number of poles 4 Rotation speed 2000 400rpm Table 7 20 Signal Description 13 Signal line Description TEST PRINT ON L 5VDC Setting to low level connecting to SG enables internal test print ...

Page 561: ...EPSON AcuLaser C8500 Revision C APPENDIX Component Layout 7 59 7 5 Component Layout Figure 7 34 C311MAIN Component Layout Component Side ...

Page 562: ...EPSON AcuLaser C8500 Revision C APPENDIX Component Layout 7 60 Figure 7 35 C311MAIN Component Layout Soldered Side ...

Page 563: ...EPSON AcuLaser C8500 Revision C APPENDIX Circuit Diagrams 7 61 7 6 Circuit Diagrams See the following pages for the C311MAIN circuit diagrams ...

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