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EPSON EPL-C8000

Rev. B

Chapter 2

OPERATING PRINCIPLES

2-51

2.7.5.3 Toner Density Control (ADC)

To obtain stable print quality, it is necessary to maintain constant toner
density in the developer. (The toner density must be detected correctly
in the actual developer without being affected by the laser.) The ADC
(Auto Density Control) forms BIAS development bands (for each color:
YMCBk) on the drum and measures the density of the bands with the
ADC Sensor. (The BIAS development bands are formed with the
standard BCR voltage and development voltage and are different from
the printing voltages.)

When detecting low toner, the system rotates the Dispense Motor
(Dispense Motor Assembly) (driving the Auger in the Developer
Assembly) for the calculated duration (dispense time) to supply toner to
the Developer Assembly from the Toner Cartridge. If too much toner
(toner density in the developer is too high) is detected, the system forms
numbers of BIAS development bands to consume the toner until the
right toner density is detected.

NOTE: The BIAS development bands are images developed on the

BCR charged area that has negatively charged toner. This is
done by raising the BCR voltage higher than the development
voltage.

Figure 2-44. Toner Density Control (ADC)

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Summary of Contents for ColorPage EPL-C8000

Page 1: ...EPSONColorPageEPL C8000 Color Laser Printer 4009762 SERVICE MANUAL ...

Page 2: ...bject to change without notice o 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 o 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 CO...

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: ...es and the lists 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 informati...

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: ...umstances 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 Do not touch any live p...

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

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 o 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 connect...

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 n Do not expose yourself to the laser beam to prevent injury blindness n Do not open the cover that has the laser beam warning label n If you disassemble or assemble the...

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

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: ...ection 1 5 4 Chapter 3 Page 3 2 Change in Table 3 1 Page 3 6 NOTE is added to Section 3 2 3 1 under Preparation Page 3 96 Section 3 2 12 21 FUSER IN SENSOR Removal is added Page 3 97 Section 3 2 12 22 FUSER CHUTE FAN Removal is added Page 3 119 CHECK POINT box is added Page 3 121 New adjustment item DEVE SPACER Selection is added Chapter 4 Page 4 1 Change in the procedure for Test Print my MCU PWB...

Page 15: ...C H A P T E R 1 PRODUCTDESCRIPTIONS ...

Page 16: ...ox 19 Regularly Replaced Parts 19 Exterior Dimensions 20 Controller Specification 21 Controller Board Jumper Settings 21 INTERFACE SPECIFICATIONS 22 Parallel Interface Specification 23 Option Interface 25 CONTROL PANEL 26 Appearance and Descriptions 26 LED Description 27 Button Functions 28 SERVICE FUNCTIONS 30 Hex dump Mode 30 EEPROM Initialization 30 Formatting the Flash ROM Module 30 Updating t...

Page 17: ...C CPU R4700 133MHz n 64 bit high speed memory SDRAM DIMM n 64MB RAM standard expandable up to 256MB 2 expansion slots 2 Color management technology n AcuLaser Color Halftoning included n RGB multivalue input processing Controller carries out binarization processing color mapping color correction and screening n Enhanced ASIC AcuLaser Color Halftoning CCNV 3 Data compression technology n Multivalue...

Page 18: ...adjustment can be set for each object But 1 resolution and screen type gradation LPl per page n Driver page Fast processing on fast PC Color correction and color adjustment can be set for each object n Image Full color WYSIWYG 2 Bidirectional EJL can retrieve printer status and monitor the printer environment 3 The following emulation modes are fully compatible with EPL 5700 LJ4 GL2 ESCP2 FX I239X...

Page 19: ... of paper It is available for LT A4 LEF or smaller 2 LEF or Long Edge Feed The longer edge of the paper is the top toward the paper feed direction SEF or Short Edge Feed The shorter edge of the paper is the top toward the paper feed direction o First print Face up B W 20 seconds or less LT A4 LEF Color 42 6 seconds or less LT A4 LEF Face down B W 24 9 seconds or less LT A4 LEF Color 47 6 seconds o...

Page 20: ... B4 A3 Legal LEF Executive LEF Ledger B 60 105g m2 Normal paper Recommended paper Notes 1 Change the side guide in the MSI tray for the paper whose width is more than 304 8mm 12 2 Each paper cassette is equipped with 2 separate paper guides side guide and end guide which also serves to detect paper size They are adjusted by users Maximum of 4 cassette unit including one standard and optional paper...

Page 21: ...n their flaps and set the rear ends of the flaps toward paper feeding direction A3W cassette have capability for only A3W paper A3W 328 x 453mm SEF SEF Unavailable A3 297 x 420mm SEF SEF Unavailable A4 210 x 297mm LEF LEF Available A5 148 x 210mm LEF Available B4 257 x 364mm SEF SEF Unavailable B5 182 x 257mm LEF Available I B5 176 x 250 LEF Available LT 8 5 x 11 215 9 x 279 4mm LEF LEF Available ...

Page 22: ...3Hz o Power consumption Rated current See Table 1 5 Notes 1 Saves more energy than in standby mode Time required for warning up is shorter 2 Completely non operating condition Complies with the Energy Star Table 1 4 Face Down Output Availability Paper Size FD Availability Paper Size FD Availability 1 Normal paper A3W Available HLT Unavailable A3 Available LG Available A4 Available EXE Available A5...

Page 23: ...n Standard tray MSI 72 000 sheets n 250 sheets x 3 feeders 135 000 sheets 45 000 sheets x 3 o Acoostic Noise Operating 54 8dB A or less Stand by 38 3dB A or less Energy Save mode 1 38 3dB A or less Energy Save mode 2 35 0dB A or less o Ozone emission 0 02 ppm time waited average value or less o Toxicity Photo conductor toner carrier plastic material have no effect on human body ...

Page 24: ... surface process n Paper that has been lubricated too smooth or slippery n Paper whose texture is different on the front and back n Paper with holes for binders and perforations n Paper with irregular shape or not cut with right angles n Paper with labels that come off and stick easily n Paper with glue staples or paper clips attached n Special ink jet paper Super Fine Paper glossy film and so on ...

Page 25: ... 2 Guaranteed Print Area Table 1 7 Paper Usability for Each Paper Path Paper path Recom mended paper Normal paper Special paper OHP sheet Postcard Labels Thick paper 1 Envelopes 2 Standard MSI tray RF P P P P P P Standard universal cassette RF P N N N N N A3W cassette 3 RF P N N N N N Large capacity paper cassette 3 RF P N N N N N Notes 1 105 220g m2 2 MON C10 DL C6 3 Option 4 RF Reliable feeding ...

Page 26: ...r s h o r t e r S i d e g u i d e p o s i t i o n f o r p a p e r w h o s e w i d t h i s m o r e t h a n 3 0 4 8 m m M a x i m u m s i z e o f p a p e r 3 3 0 2 m m 1 3 w i d t h x 4 5 7 2 m m 1 8 l e n g t h G u a r a n t e e d p r i n t a r e a 2 9 7 m m 1 1 7 w i d t h x 4 3 1 8 m m 1 7 l e n g t h P r i n t a b l e a r e a 3 2 0 0 m m 1 2 6 w i d t h x 4 4 9 2 m m 1 7 7 l e n g t h P a p e r ...

Page 27: ...n added stack of paper is ignored o Print position accuracy n Main scan direction Reference position c 2 5 mm n Sub scan direction Reference position a 2 0 mm See Figure 1 4 o Paper skew See Figure 1 4 and Table 1 9 Figure 1 5 Paper Skew Table 1 8 Paper Feed Reliability Recommended paper Normal paper Special paper o Standard paper tray Paper jam rate 1 500 or less 1 100 or less 1 100 Multiple feed...

Page 28: ...rinting one page is formed with 4 images and the value 180 000 sheets is figured out in the condition that the job ratio of monochrome and color printings is 1 1 n Standard tray MSI 72 000 sheets n 250sheets x 3 feeders 135 000 sheets 45 000 sheets x 3 o MTTR Within 30 minutes average o Curl height at ejection Less than 15mm Color printing with the image ratio of 5 in non aligned condition which v...

Page 29: ...e 10mm or less within 560mm o Luminosity 3000 lux or less not to exposed to direct sunlight o Surrounding environment See Figure 1 6 Figure 1 6 Space Requirement V e n t i l a t i o n T o P u l l o u t t h e s t a n d a r d p a p e r c a s s e t t e u n i t w h e n p u t t i n g p a p e r V e n t i l a t i o n T o p u l l o u t t h e F U S E R U N I T t o r e m o v e j a m m e d p a p e r T o p u ...

Page 30: ...tion n Frequency 2 500 Hz n Acceleration 12 6 m s2 on a vibrating board 1 n Direction 3 directions X Y Z 2 n Duration 30 minutes single way 1 Overall rms value 2 Z vertical X and Y horizontal Table 1 10 Environmental Conditions 1 Temperature Humidity Guaranty Normal condition 0 35 C 15 80 RH For 12 months Extreme condition High 35 40 C Low 20 0 C High 80 95 RH Low 5 15 RH One month Max Table 1 11 ...

Page 31: ... under the following conditions n Atmospheric discharging 8KV n Contact discharging 6KV o Rush current 1 2 cycle 100A or less o Insulation resistance 10 M Ω or more o Dielectric strength There is no breakdown when the following voltages are applied for one minute n 100V 120V model AC 2000V Between primary and secondary sides AC 1000V Between primary side and chassis n 220V 240V model AC 2000V Betw...

Page 32: ...ment Automatic can not be set by user 1 2 8 Applicable Standards o Safety Standards n 100V 120V UL1950 2nd Edition CSA C22 2 No 950 M89 n 220V 240V IEC950 2nd Edition 1991 by VDE with GS mark o Safety regulations n 100V 120V FDA21CFR Chapter 1 Subchapter L Section 1010 1040 n 220V 240V IEC825 Class l Laser Product Note Laser power 5mW rated Wavelength 785nm 10 15nm at 25 C o EMI n US FCCPart15 Sub...

Page 33: ...CARTRIDGE S051061 EPSON Color Laser Transparencies A4 S041175 EPSON Color Laser Transparencies Letter S041174 o Interface card Ethernet Interface Card C82357 C82362 C82363 C82364 32KB Serial Interface Card C82307 32KB Parallel Interface Card C82310 Coax Interface Card C82314 Twinax Interface Card C82315 LocalTalk Interface Card C82312 GPIB Interface Card C82313 Table 1 13 Toner Cartridge Life Item...

Page 34: ...5 Temperature Humidity Temperature Humidity Guaranty 1 Normal condition 0 35 C 15 80 RH 1 24 months Extreme condition High 35 45 C Low 20 0 C High 80 95 Rh 1 Low 5 15 Rh 1 1 month Max Table 1 16 Photoconductor Unit Specifications Specifications Formation Photoconductor drum cleaner waste toner box Life 20 000 sheets 1 same for the waste toner box Dimension WxDxH 2 Unpacked 213 mm W x510 mm D x 181...

Page 35: ...nvironmental condition for storage and transportation Same as for Toner Cartridge 1 Varies depending on the operating conditions as follows Operating rate is 120 sheets day or more 20 000 sheets Operating rate is 120 sheets day or less 11 000 sheets 2 Tolerances for dimensions and weight are both 1 Table 1 18 Waste Toner Box Specifications Formation Waste toner box and others Life 20 000 sheets 1 ...

Page 36: ...hapter 1 PRODUCT DESCRIPTIONS 1 20 1 2 11 Exterior Dimensions Exterior dimensions of the EPL C8000 are as follows Figure 1 7 Exterior Dimensions of EPL C8000 6 4 1 m m D 4 9 0 m m H 7 2 8 m m W 1 3 6 7 4 m m M a x 5 6 0 m m W ...

Page 37: ...s 3 3V Maximum 256MB 3 RAM slots 1of them is used for standard RAM Standard 64MB Expansion 32MB 64MB 128MB ROM 64 bit wide Program 4MB DIMM Font 2MB Expansion ROM 2 slots ROM DIMM slots Slot A Flash DIMM Font ROM module Slot B NLSP fonts only Panel 1 line 20 Character LCD 6 LEDs 8 switches Interfaces Standard Parallel 1 Channel 1EEE 1284 compliant bidirectional B type connector Compatibility Nibbl...

Page 38: ...re below shows the locations of these interfaces Figure 1 8 Locations of the Interface Slots Table 1 19 Host Interface Usage Configurations Parallel I F Type B AUX1 I F Type B AUX2 I F 1 Automatic I F switching Usable Usable Usable 2 Fixed I F Parallel Usable Not Usable Not Usable 3 Fixed I F AUX1 Not Usable Usable Not Usable 4 Fixed I F AUX2 Not Usable Not Usable Usable T y p e B A U X 1 I n t e ...

Page 39: ... no emulation is running it is EJL 4 Either IDLE or BUSY 5 Manufacture and product name Table 1 20 Data Transmission Timing Min Typ Max 1 Data hold setup 0 5 us 2 Data hold 0 5 us 3 Strobe pulse 0 5 us 4 BUSY to STRBX 0 us 5 STROB to BUSY 0 5 us 6 BUSY to STRBX 0 us 7 ACKX pulse width 0 5 us 1 us 8 ACKX to BUSY 0 s 9 BUSY to PE or ERRX 2 ms 10 PE or ERRX to BUSY 2 ms 11 Power on to signal output v...

Page 40: ...ter automatically feeds a line as CR is input The CR is detected when the printer is turned on or the interface selection is switched from the optional I F to parallel I F 15 NC Not used 16 GND Ground level for the twisted pair return 17 CG Connected to the printer chassis The printer chassis GND and the signal GND are connected each other 18 NC Not used 19 30 GND Ground level for the twisted pair...

Page 41: ...tem Full Duplex o Synchronism n Synchronous Asynchronous n Start bit 1BIt n Stop bit 1Bit Other bits could be used but without guaranty of proper operation n Data bit 7Bit or 8Bit DP SW 1 2 n Parity None Even Odd DP SW 1 3 1 4 n Protocol X ON X OFF Can not be used with DTR control DP SW 2 3 DTR Control Can not be used with X ON X OFF DP SW 2 3 n Transmission rates 300 600 1200 1800 2400 4800 9600 ...

Page 42: ... u r c e P a p e r S i z e M a n u a l F e e d O r i e n t a t i o n R I T e c h C o p i e s M P T r a y S i z e O u t B i n M e n u I t e m V a l u e E n t e r R e s e t A l t A B C D E F G H I J K L M N O Table 1 23 LEDs and Switches on the Control Panel LED Button Location Name Remarks Location Name Remarks A LCD Panel 1 line 20 characters 5 x 7 dot matrix H On Line button B On Line LED Green I...

Page 43: ...as control codes including commands Off No effective print data remains in the printer If control codes are not terminated the indicator is lit Blinking The printer is processing data o Continue LED D Blinking An error has occurred which can be cleared by pressing the Continue button o OneTouch Setting Mode 1 LED E On OneTouch mode 1 is enabled The following 4 items can be set in this mode Paper S...

Page 44: ...eTouch mode 1 puts the printer in OneTouch mode 2 n Pressing this button in the OneTouch mode 2 activates the SelecType mode to enter the initial level of SelecType mode The Test Menu appears o Menu button L n Pressing this button activates the SelecType mode and the initial level of the mode Test Menu appears In the SelecType mode this button is used to select the setting menu the primary level o...

Page 45: ...sed to select the value for Orientation n In OneTouch mode 2 used to select the value for Out Bin n In SelecType mode the setting value is confirmed and printing or other functions are activated NOTE If this button is pressed with the Shift button held down setting values and items scroll backward o Reset button Continue button Alt button K J Pressing this button with the Alt button held down caus...

Page 46: ...wer on o Functions Clears the EEPROM to 00h and writes factory default values All values but the counter values for the IBT Cleaner 2ND BTR Fuser and accumulated printed pages are cleared Refer to Section 1 5 7 o Termination After initializing the printer performs warm boot and returns to the normal states o Buttons Alt Item Value Enter Power on o Functions Clears the flash ROM module inserted in ...

Page 47: ... occurs while the Maintenance menu is generated Same as for EJL Note the following points in the Maintenance mode l Interfaces are always open Disconnected l Before entering the Maintenance mode to print an engine status sheet make sure no engine related error is indicated in a normal mode other than Maintenance mode l In this mode the printer only prints engine status sheet In case other printout...

Page 48: ...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 OneTouch mode NOTE OneTouch mdoe is effective when no error has occurred 1 Enter the OneTouch mode 1 or 2 by pressing the SelecType button The current values for 4 items are shown on the LCD 2 Scroll the ...

Page 49: ... format below Setting Item Current setting value NOTE The trailing means the current setting value 4 To select the value for the selected item press the Value button Each value available appears in the format below Setting Item Current setting value NOTE The trailing means the current setting value NOTE Using the Alt button Menu Item Value button it is possible to cycle through the lists backward ...

Page 50: ...n t e r I t e m M e n u V a l u e S e t t i n g i t e m s e l e c t m o d e S e l e c T y p e I t e m M e n u I t e m E n t e r O n e t o u c n s e t t i n g S e l e c T y p e M o d e O n L i n e s t a t u s S t o r e i n E E P R O M o r p e r f o r m p r o c e s s i n g I n i t i a l i z e p a n e l s e t t i n g s E x e c u t e t e s t p r i n t c l e a n i n g p r i n t O n e T o u c h m o d e ...

Page 51: ...300 Skip Blank Page Off On 19 Tray Size Menu MP Tray Size A4 2 A3 A5 B4 B5 LT 3 B HLT LGL GLT GLG EXE F4 MON C10 DL C6 IB5 A3W LC1 Size 7 With the standard cassette mounted A4 A3 B4 B5 17 LT LGL B EXE 18 With A3 W cassette mounted A3W LC2 Size 1 7 A4 A3 B4 B5 17 LT LGL B EXE 18 LC3 Size 1 7 A4 A3 B4 B5 17 LT LGL B EXE 18 LC4 Size 1 7 A4 A3 B4 B5 17 LT LGL B EXE 18 Table 1 25 Panel Setting Menu Lis...

Page 52: ...SO 5 25 WiGreek 5 Europe3 5 PcCy855 5 11 PcCy866 5 11 PcLt866 5 8859 5 ISO 5 WiCyrillic 5 Bulgarian 5 11 PcUkr866 5 Hebrew7 5 8859 8 ISO 5 Hebrew8 5 PcHe862 5 Arabic8 5 PcAr864 5 8859 6 ISO 5 OCR A 5 OCR B 5 Table 1 27 Panel Setting Menu List 4 6 Menu Item Value LJ4 Menu Continued Form 5 60 3 64 2 128 lines Source SymSet 5 0 277 3199 Dest SymSet 5 0 277 3199 GL2 Menu GL Mode LJ4GL2 GLlike Scale Of...

Page 53: ...tilin PcPortugue PcCanFrenc PcNordic PcTurkish2 PcE Europe BpBRASCII BpAbicomp 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 Table 1 29 Panel Setting Menu List 6 6 Menu Item Value 1239X Menu Font Courier Prestige Gothic Orator Script Presentor Sans serif Pitch 10 cpi 12cpi 1...

Page 54: ...e Font ROM for Latin is installed 13 If LJ4 Menu SymSet value is changed to this symbol set Font Source changes to Resident and Font Number changes to 0 In order to print with this symbol set therefore Font Source and Font Number must be set to a font that supports this symbol set 14 Displayed if NLSP Font DIMM includes status sheet resource 15 Displayed only if maintenance mode has been enabled b...

Page 55: ...Eject into face up tray 3 Manual Manual Feed is always printed 1 up o Config Menu 1 RITech The contour correction feature operates during B W printing or special mode color printing 2 Toner Save During color printing toner is saved by controlling halftone propagation and reducing the print density 3 Size Ignore Setting the value to On generates 1up printing 4 PaperType Fusing temperature and print...

Page 56: ...great as at level 2 note that level 1 is not EnergyStar compliant since power usage is above 45W but the warm up time required to move back into normal standby mode is relatively short about 60 seconds l Standby Levd 2 Provides greater power savings than standby level 1 mode by switching off the fuser unit and many of the mechanical circuits Level 2 is EnergyStar compliant not above 45W but warm u...

Page 57: ...stalled memory MB 16 x 30 number of interfaces l Maximum Buffer size KB lnstaIIed memory MB 16 x 120 number of interfaces l Minimum Buffer size 8 KB Table 1 30 Buffer Size Specifications I Fs Installed memory MB I F Auto with no optional I F or I F other than Auto I F Auto with 1 optional I F I F Auto with 1 optional I F Normal Maximum Minimum Normal Maximum Minimum Normal Maximum Minimum 64 1440 ...

Page 58: ... replacing the lBT Cleaner 3 Fuser Unit Reset Resets the Fuser Unit counter The maintenance engineer must reset this counter after replacing the Fuser Unit 4 Page Count Clear CIears the total page count aggregate total of printed pages engine s printer 1 and printer 2 counters 5 Engine Status Sheet Pressing the Enter switch starts printout of an engine status sheet lf language data is still in the...

Page 59: ...C H A P T E R 2 OPERATINGPRINCIPLES ...

Page 60: ... Xerographics II 29 Development 31 IBT I 33 IBT II 34 Fusing I 35 Fusing II 37 Paper Exit 39 Drives 40 Electrical 42 OPERATION MODES 44 CONTROLS 45 Paper Size Control 45 Paper Tray Selection Control 46 OHP Side Detection Control 47 ROS Control 48 Scanner Motor Rotation 48 Light Quantity Control 48 Process Control 49 Electric Potential Control 49 Toner Density Control PCDC 50 Toner Density Control ...

Page 61: ...trol Method 68 Warm up Control 68 Mode Control READY LIGHT SLEEP DEEP SLEEP 69 Printing Mode Control 69 Not Ready State Detection During Printing 69 Oil Roll Control 70 Fuser Fan Control 72 Detection Controls in Fuser 72 CONTROLLER OPERATING PRINCIPLES 76 ...

Page 62: ...rized as follows Figure 2 1 Print Process Flowchart 1 Charge Charges the drum surface 2 Exposure Exposes the image with a laser beam 3 Development Develops the image with the toner 4 First transfer Transfers the toner image on the drum to the belt 5 Cleaning Cleans the drum 6 Repeat In the YMCBk mode steps 1 5 are repeated for each toner At the end the belt has a full color image The steps are not...

Page 63: ...ter are shown in the figure below NOTE In this document Developer Assembly Y Developer Assembly M Developer Assembly C and Developer Assembly Bk are termed Developer Assembly NOTE In this document Toner Cartridge Y Toner Cartridge M Toner Cartridge C and Toner Cartridge Bk are termed Toner Cartridge Figure 2 2 Major Components ...

Page 64: ...drum rotation The BCR is a conductive roll receiving discharge voltage from the HVPS The discharge voltage is negative DC voltage to which AC voltage has been superimposed The discharge occurs in the very small gap between the BCR and the drum surface The drum surface is uniformly charged negative with DC bias voltage The drum surface consists of photoconductive material on the surface and an alum...

Page 65: ...rom the laser diode in the ROS Assembly The laser beam goes through the Scanner Assembly in the ROS Assembly the rotating polygon mirror fixed mirror and lens and scans the drum surface from one end to the other in the axis direction of the drum Figure 2 4 Lase beam emission The laser beam irradiated on the drum surface generates electron hole pairs in the photoconductive layer Excited electrons c...

Page 66: ... Blade resulting in a uniform carrier layer The Magnet Roll surface is covered with a thin semiconductive sleeve The HVPS applies the DB Developing Bias voltage to this sleeve The DB voltage is negative DC voltage to which AC voltage has been superimposed Using this DC voltage the Magnet Roll retains constant negative voltage on the photoconductive layer of the drum As a result areas where negativ...

Page 67: ...and ADC For details on PCDC and ADC See Section 2 7 5 o To obtain a full color image of 4 color toner four toner images YMCBk must be formed on the drum s surface in sequence This printer uses the rotary development method to form images The rotary development method uses the Rotary Frame Assembly The Rotary Frame Assembly has four Developer Assemblies which are installed every 90 see figure below...

Page 68: ...per Assembly however is collected into a different chamber in the Toner Cartridge so that the developer mostly carrier is replaced little by little resulting in a constant electrical charge being maintained This is called the trickle development method The trickle development method uses the rotation of the Rotary Frame Assembly The trickle development process is as follows 1 An L shaped pipe is i...

Page 69: ...as Transfer Roll o The 1st BTR is a conductive roll receiving positive high voltage from the HVPS The 1st BTR touches the back of the belt Following the rotation of the belt the 1st BTR gives a positive charge to the back of the belt The toner image on the drum surface negatively charged is attracted to the positive charge on the back of the belt The image is transferred from the drum surface to t...

Page 70: ...nsferred in the 1st Transfer step remains on the drum surface This residual toner is scraped off by the Cleaning Blade It is then transported to the Waste Toner Box by the Auger in the Drum Cartridge o Electrical drum cleaning An electrical charge still remains on the drum surface after the residual toner has been scraped off This residual electrical charge is removed by the LED beam output from t...

Page 71: ...te full color toner image In the Repeat step forming a complete full color toner image the toner image of each color on the drum surface is transferred onto the belt and is repeated four times resulting in a complete full color toner image on the belt Figure 2 11 Repeat 1 Figure 2 12 Repeat 2 ...

Page 72: ...the potential to the Back Up Roll The negative potential given to the Back Up Roll neutralizes the positive charge on the back of the belt and induces a positive charge on the 2nd BTR through the belt and the paper The Back Up Roll belt and 2nd BTR have resistance and the paper functions as a capacitor resulting in induction of a positive charge on the 2nd BTR When the back of the belt is neutrali...

Page 73: ...ers the 2nd BTR is touching the belt the toner image created up to this point will be destroyed This means the 2nd BTR must touch advance to the belt only after the complete toner image has been transferred onto the paper At other times the 2nd BTR must be retracted from the belt This Advance Retract switching operation is carried out by the BTR Cam Solenoid Figure 2 14 Second Transfer 2 By BTR Ca...

Page 74: ...not transferred onto the paper in the 2nd Transfer step The residual toner is scraped off by the Cleaning Blade in the Belt Cleaner Assembly which is touching the belt The scraped toner is transferred through the Auger High Assembly to the Waste Toner Box o In the Repeat step forming a complete full color toner image the toner images are transferred from the drum surface to the belt four times If ...

Page 75: ...r As auxiliary heat the Pressure Roll has a P R Heater o When the toner image is fused the toner becomes adhesive causing the paper to adhere to the Heat Roll To prevent this the Oil Roll Assembly supplies Fuser Oil to the Heat Roll This allows the paper to be peeled off easily from the Heat Roll o If the Oil Roll Oil Roll Assembly is continuously touching the Heat Roll the Fuser Oil may degrade o...

Page 76: ... drum s surface from one side to the other by switching the laser beam ON and OFF produces a dot image of one line A single color two dimensional dot image is produced by repeating the scanning of the laser beam for one page To obtain a full color image a single color image is generated for each color YMCBk The resolution is determined by the following two factors Main scanning direction Dots inch...

Page 77: ...Driver Power Transmission Path 2 3 1 Process Motor Assembly The rotational force of the Process Motor Assembly is transmitted to the Process WDD Assembly and then transmitted to various units as shown below Figure 2 19 Drive Transmission in Process Motor Assembly ...

Page 78: ...IPLES 2 17 2 3 2 P H Motor Assembly The rotational force of the P H Motor Assembly is transmitted to the Fuser Drive Assembly and P H Drive Assembly and then to various units as shown on the right Figure 2 20 Drive Transmission in P H Motor assembly ...

Page 79: ...drives the Auger in the Developer Assembly The Auger supplies the toner from the Toner Cartridge to the Developer Assembly Figure 2 21 Drive Transmission in Dispense Motor Assembly 2 3 4 Rotary Motor Assembly The Rotary Motor Assembly drives the Rotary Frame Assembly Figure 2 22 Transmission in Rotary Motor Assembly ...

Page 80: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 19 2 3 5 Gear Layout Figure 2 23 Gear Layout ...

Page 81: ...ard paper tray bottom of the printer is called Cassette 1 the top tray of the optional Large Capacity Paper Unit is called Cassette 2 the middle tray is Cassette 3 and the bottom tray is Cassette 4 Figure 2 24 Paper Transportation Path Layout Figure 2 25 Paper Transportation Flow P R E R E G I R O L L A S S Y Laser beam P a p e r f e e d C a s s e t t e 1 ...

Page 82: ...heir functions Each subsection has a figure illustrating the component and its function The major components are listed below n Paper Tray n Paper Feeder n Multi Sheet Inserter n Paper Transportation n Xerographics I n Xerographics II n Development n IBT I n IBT II n Fusing I n Fusing II n Paper Exit n Frame Drive n Electrical ...

Page 83: ...e The printer recognizes the paper size from the ON OFF combinations n The Rear Guide Assembly moves in a direction perpendicular to the direction of the paper feed and holds the paper stack horizontally n The Bottom Plate Assembly pushes the paper stack onto the Feed Roll so that one sheet is pulled out by friction The Tray N F Springs push up the Bottom Plate Assembly n The bottom of the Bottom ...

Page 84: ... Magnet determining that the supply of paper is getting low 4 Feed Solenoid By controlling the rotation of the Feed Gear the operation rotation stop of the Feed Roll Assembly is controlled 5 Feed Roll Assembly When the Feed Solenoid is activated the Feed Spring force causes the Feed Gear and Feed Idler Gear to mesh The Feed Roll Assembly then receives the driving force from the P H Motor Assembly ...

Page 85: ...l and corrects the paper d MSI Short N P Sensor When the MSI N P Actuator position changes the MSI Short N P Sensor detects paper on the MSI Assembly The MSI Short N P Sensor only functions when the printer controller sends a signal indicating short paper size shorter than 150mm in the feeding direction e MSI Long N P Sensor The MSI Long N P Sensor detects paper on the MSI Assembly by detecting th...

Page 86: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 25 2 MSI Tray Assembly The MSI Tray Assembly hold the paper stack on the MSI Assembly Figure 2 28 Multi Sheet Inserter RETARD PAD ASSY ...

Page 87: ...Rubber Roll without making a loop By turning on the Registration Brake Clutch the Registration Metal Roll and the Registration Rubber Roll are constricted and the paper cannot go through and that causes a paper loop d The Registration Clutch transmits the driving force from the P H Motor Assembly to the Registration Metal Roll and Registration Rubber Roll so that the paper and the IBT Belt Assembl...

Page 88: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 27 Figure 2 29 Paper Transportation ...

Page 89: ...eed the Polygon Mirror is on the rotational axis of the Scanner Motor The laser beam output from the LD Assembly is projected onto the Polygon Mirror The Polygon Mirror has 12 reflecting surfaces as the Scanner Motor rotates the reflection angle of the laser beam changes This change causes the laser beam to scan the drum s surface in the drum axis direction One reflecting surface of the mirror sca...

Page 90: ... the Cleaning Blade and the other toner sent by the Auger High Assembly the toner scraped off from the IBT Belt Assembly by the Belt Cleaner Assembly 2 Erase Lamp Assembly The Erase Lamp Assembly emits a light onto the drum s surface to remove the residual charges remaining from the previous Charge process 3 Waste Toner Sensor The Waste Toner Sensor detects when the Waste Toner Box is full of disc...

Page 91: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 30 Figure 2 31 Xerographics II ...

Page 92: ...artridge has been mounted If it does not detect a reflected light it determines that the Toner Cartridge has not been mounted 3 Rotary Sensor The Rotary Sensor detects the home position of the Rotary Frame Assembly The Developer control is done based on the home position For more details see 7 8 Developer Control 4 Developer Assembly Y Developer Assembly M Developer Assembly C Developer Assembly B...

Page 93: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 32 Figure 2 32 Development ...

Page 94: ...BT Belt Assembly This is because the toner images transferred onto the IBT Belt Assembly must match precisely The TRO Sensor detects this mark every time the IBT Belt Assembly makes one rotation When the sensor detects the mark the system waits for a predetermined period and then generates a TRO signal which indicates the reference point and the image transfer reference point to form an image The ...

Page 95: ...2nd BTR Assembly c The Detach Saw Charge Removal Plate provides the charges on the back of the paper and neutralizes removes the charges on the paper 2 BTR Cam Solenoid The BTR Cam Solenoid transfers the drive force from the P H Motor Assembly via the P H Drive Assembly to the 2nd BTR Cam Assembly and controls the advance retract movement of the 2nd BTR Assembly Advance The 2nd BTR Cleaner moves f...

Page 96: ...de the Pressure Roll and heats the Pressure Roll to the fusing tem perature The Temperature Sensor Assembly is a thermistor sensor It always touches the Heat Roll and detects the temperature on the Heat Roll s surface A thermistor is an element that changes its resistance by temperature From the detected temperature the Temperature Sensor Assembly controls the ON OFF of the H R Heater and P R Heat...

Page 97: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 36 Figure 2 35 Fusing I ...

Page 98: ...y to the Cleaner Cam Assembly and the Cleaner Cam Guide and controls the advance retract operation of the Belt Cleaner Assembly Advance The Cleaning Blade moves forward to the IBT Belt Assembly Retract The Cleaning Blade moves away from the IBT Belt Assembly Oil Cam Solenoid If the Oil Roll in the Oil Roll Assembly is constantly touching the Heat Roll the Fuser Oil may degrade and oil stains may a...

Page 99: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 38 Figure 2 36 Fusing II ...

Page 100: ...Chute Switch The Exit Chute Switch detects the open close of the Exit Upper Assembly If open the Exit Chute Switch halts the printer operation a safety feature The Exit Chute Switch is turned ON when the rib of the Exit Upper Assembly is pushed in 4 Fuser Fan The Fuser Fan exhausts the heat from the Fuser Assembly to prevent overheating in the printer 5 Top Exit Sensor The Top Exit Sensor detects ...

Page 101: ...r Assembly n 2nd BTR Assembly n Belt Cleaner Assembly n Exit Lower Assembly n Auger High Assembly n Drum Cartridge 3 P H Drive Assembly The P H Drive Assembly transfers the driving force from the P H Motor Assembly to the Main P H Assembly and the Drum Cartridge 4 Fuser Drive Assembly The Fuser Drive Assembly transfers the driving force from the P H Motor Assembly to the Fuser Assembly the 2nd BTR...

Page 102: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 41 Figure 2 38 Drives ...

Page 103: ...The HVPS provides high voltage to the following components The high voltage is needed for the various printing processes Charging Developing 1st Transfer 2nd Transfer Detach n BCR Drum Cartridge n Magnet Roll Developer Assembly n 1st BTR Contact Roll Transfer Assembly n Detach Saw 2nd BTR Assembly 7 MCU PWB The MCU PWB controls the print operation using the data from the printer controller and the...

Page 104: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 43 Figure 2 39 Electrical ...

Page 105: ...the printer is waiting to print o PRINTING The printer is printing o LIGHT SLEEP Standby level 1 Theprinterisinamodeinwhich tosaveenergy the Fuser control temperature is low o DEEP SLEEP Staneby level 2 The printer is in a mode in which to save energy power is not supplied to the Fuser Fuser Fan or Developer Fan o DIAGNOSTIC TEST The printer can accept a diagnostic command or is running a diagnost...

Page 106: ...o paper tray 0 0 0 0 0E 0F 0 275 0 293 B5 LEF 1 1 1 0 0 BB BE 3 671 3 715 EXECUTVE LEF 2 A4 LEF 0 1 0 0 47 4A 1 396 1 445 LETTER LEF 1 0 0 0 9D A1 3 098 3 152 A4 SEF 1 0 1 1 1 72 76 2 248 2 298 LETTER SEF 2 LEGAL14 SEF 1 1 1 0 B8 DB 4 247 4 276 B4 SEF 0 1 0 1 55 59 1 680 1 730 A3 SEF 0 0 1 0 2A 2D 0 834 0 871 LEDGER SEF 0 0 1 1 3A 3C 1 116 1 157 12 x 8 SEF 0 0 0 1 1C 1E 0 554 0 583 Irregular 1 1 1...

Page 107: ...ity Paper Unit option Cassette 4 Third cassette in the Large Capacity Paper Unit option Table 2 2 Paper Tray Selection Control Priority Selected tray Conditions 1 Cassette 1 Cassette 1 Paper Cassette Yes Paper Yes Or all paper cassettes No paper 2 Cassette 2 Cassette 1 Not selected Cassette 2 Paper Cassette Yes Paper Yes 3 Cassette 3 Cassette 1 Cassette 2 Not selected Cassette 3 Paper Cassette Yes...

Page 108: ...he signals sent by the Front OHP Sensor and the Rear OHP Sensor Epson exclusive OHP transparency film S041175 4 has a white edge with a notch on it The sensors detect the notch and the printer determines whether the film is set properly based on the signals sent from the sensors If any OHP film other than specified one is used the printer indicates the message Check OHP sheet and stops printing Fi...

Page 109: ...ght signal represents data by turning the laser beam on off To obtain a correct electrostatic latent image the LD Power for the laser light the optical system lens etc and the drum sensitivity must be stable Based on the feedback from the electric potential control See Section 2 7 5 1 Electric Potential Control the LD Assembly monitors and controls the laser light quantity to obtain a correct elec...

Page 110: ...he electric potential control does the following n Measures the development density of the image Cin50 patch in each color Y M C and Bk and the non development density on the drum The image is formed on the drum by the BCR voltage laser and development voltage The ADC Sensor detects the densities n Computes a correct BCR voltage and laser quantity n Sends the data to the HVPS and ROS Feedback NOTE...

Page 111: ...consumed toner amount in the development process Based on data from the PCDC the system provides toner to the Developer Assembly The toner is supplied to the Developer Assembly from the Toner Cartridge when the system rotates the Dispense Motor Dispense Motor Assembly driving the Auger in the Developer Assembly for the calculated duration dispense time The PCDC counts the capacitor charges dischar...

Page 112: ... development voltage and are different from the printing voltages When detecting low toner the system rotates the Dispense Motor Dispense Motor Assembly driving the Auger in the Developer Assembly for the calculated duration dispense time to supply toner to the Developer Assembly from the Toner Cartridge If too much toner toner density in the developer is too high is detected the system forms numb...

Page 113: ...error The printer indicates the corresponding message on the LCD panel and stops printing NOTE The count described above is based on the following 1 count Printing a sheet that has a length feed direction of 219mm LETTER LEF or smaller 2 counts Printing a sheet that is larger than the above Table 2 4 Process Sequence Sequence Description Errors Detected Power Up Sequence Warm UP sequence Power ON ...

Page 114: ...first TRO signal Erase lamp Receiving the print signal turns the Erase lamp ON as Cycle up sequence starts During printing BCR Standard speed mode Keeps the BCR ON Half speed mode After forming the image electrostatic latent image with the last color turns the BCR OFF with the second TRO signal and turns it ON with the TRO signal which is a basis for switching the Developer assembly Erase lamp Sta...

Page 115: ...verse direction Since the image is not transferred 1st the toner adheres to the Cleaning Blade The toner acts as a lubricant This prevents Cleaning Blade from rotating in reverse Image generated when the Drum Cartridge is replaced The following image is generated several times the number of generations has been predefined Nominal 5 times in three colors Yellow Magenta and Cyan Figure 2 45 Image Ge...

Page 116: ...sensor detects the status Signal High and the message Waste T Box Nearfull is indicated on the LCD panel The printer continues to perform the specified printing toner dispense time 1 and stops printing when the message Replace Waste T Box appears on the LCD panel The counter is reset when a new waste toner box is installed 1 See the table below for the reference values which show how many pages ca...

Page 117: ...position is the Home Position of the Rotary Frame Assembly Home Position 30 in the opposite direction of the rotation direction from the Bk development position on the Developer Assembly The Home Position is the location where the Rotary Frame Assembly has been rotated 46 after the Rotary Sensor detected the protruding section of the Rotary Frame Assembly Figure 2 46 Home Position Detection ...

Page 118: ...rom the Home Position rotational position Toner Cartridge M detection position 0 from the Home Position rotational position Toner Cartridge C detection position 90 from the Home Position rotational position Toner Cartridge Bk detection position 180 from the Home Position rotational position Table 2 9 Development Position Toner Cartridge Y new old detection position 75 from the Home Position rotati...

Page 119: ...d 3 Toner Cartridge no toner detection The No Toner status is detected by the process control The following shows the No Toner Detection flow No Toner Reset flow and Toner End of Life Warning Reset flow a No Toner Detection flow b No Toner Reset flow T o n e r L o w D i s p e n s e t i m e a c c u m u l a t e d o f t h e c o l o r P r e d e t e r m i n e d t i m e A S T A R T N o t o n e r d e t e...

Page 120: ... o n e r C a r t r i d g e N e w O l d d e t e c t i o n T o n e r l i f e w a r n i n g R e s e t C l e a r D i s p e n s e t i m e a c c u m u l a t e d o f t h e c o l o r T o n e r L o w T o n e r l i f e w a r n i n g D i s p e n s e t i m e o f t h e c o l o r n o c h a n g e S R N A 9 3 F A N e w O l d ...

Page 121: ...o t h e 1 s t B T R t o m o n i t o r t h e 1 s t B T R r e s i s t a n c e M o n i t o r s t h e o u t p u t v o l t a g e o b t a i n e d f r o m t h e p r e d e t e r m i n e d c u r r e n t a s a s u b s t i t u t e f o r t h e r e s i s t a n c e v a l u e C a l c u l a t e t h e 1 s t t r a n s f e r c u r r e n t a c c o r d i n g t o t h e o u t p u t v o l t a g e m o n i t o r e d N o t ...

Page 122: ... l a t e t h e 2 n d t r a n s f e r v o l t a g e a c c o r d i n g t o t h e o u t p u t c u r r e n t m o n i t o r e d N o t e T h e 2 n d t r a n s f e r v o l t a g e d i f f e r s d e p e n d i n g o n t h e c o l o r m o d e s p e e d m o d e a n d p a p e r t y p e A d v a n c e t h e 2 n d B T R A s s e m b l y a n d t h e B e l t C l e a n e r A s s e m b l y O u t p u t t h e p r e d e...

Page 123: ...nd of life detection The life expectancy of the 2nd BTR Assembly is determined by the number of printings number of 2nd BTR transfer rotations By accumulating the 2nd BTR rotation counts the life expectancy of the 2nd BTR Assembly 2nd BTR is determined The conditions for 2nd BTR end of life detection is defined in the following table See the next page Table 2 11 2nd BTR Advance Retract Control Sta...

Page 124: ...eeded Service call error After replacing the 2nd BTR Assembly with a new one peform the 2nd BTR Reset in the maintenance menu End of life warning Maintenance service call error After replacing the 2nd BTR Assembly with a new one peform the 2nd BTR Reset in the maintenance menu C A U T I O N Do the following operations after you replace the 2nd BTR Assembly with a new one Doing any of these operati...

Page 125: ...e Belt Cleaner Assembly continue to be in the advanced position NOTE The time required for the Belt Cleaner Assembly advance operation is 1 0 seconds standard speed mode and 2 1 seconds half speed mode since the Belt Cleaner Assembly receives the Cleaner Cam Solenoid ON signal The time required for the Belt Cleaner Assembly retract operation is 0 9 seconds standard speed mode and 1 8 seconds half ...

Page 126: ...olenoid OFF signal b Irregular cleaning c Error cleaning Table 2 13 Normal Cleaning On Off Timing ON timing Comes ON G1 second before the top edge of the image printed area on the IBT surface after the 2nd transfer advances to the position where the Belt cleaner assembly cleans the belt OFF timing Goes from ON to OFF G2 seconds before the top edge of the next image printed area on the IBT surface ...

Page 127: ...print on one belt surface 2 UP mode b Processes after replacement Life expectancy exceeded After replacing the 2nd Belt Cleaner Assembly with a new one perform IBT Cleaner Reset in the maintenance menu End of life warning After replacing the 2nd Belt Cleaner Assembly with a new one perform IBT Cleaner Reset in the maintenance menu Table 2 16 IBT Cleaner End Of Life Detection Belt Cleaner Assembly ...

Page 128: ...rmed in the following color sequence Yellow Magenta Cyan and Black Figure 2 49 1 UP Mode 2 2 UP mode Two sheets are transported the distance equivalent to one belt circumference The image toner image is formed as follows Yellow 1st sheet Yellow 2nd sheet Magenta 1st sheet Magenta 2nd sheet Cyan 1st sheet Cyan 2nd sheet Black 1st sheet Black 2nd sheet Figure 2 50 2 UP Mode Mode Image for 1 Belt Cir...

Page 129: ...ure reaches the Fuser control temperature Fuser Warm up ends The Fuser control temperature in the Warm up mode changes described in the table below according to the Heat Roll surface temperature at Power ON NOTE The Fuser temperature in the Warm up is corrected according to the environment temperature detected by the Environment Sensor NOTE When Fuser Warm up is started the Heater turns ON OFF for...

Page 130: ...d the system halts the print job 1 A Not Ready state occurs during printing if the following occurs a More than 30 sheets are printed during a predefined period when the paper size is B4 SEF or smaller and the mode is B W b Continuous printings are ordered in the B W mode immediately after YMCBk mode 2 Not Ready detection timing Each time the Fuser Exit Sensor detects a sheet of paper the system c...

Page 131: ...ater and inhibits printing for a period requiring 2 circumferences nominal of the belt The system then cancels the Not Ready state If a Cycle Down Sequence is executed after YMCBk mode printing the Not Ready state is not canceled 2 7 10 6 Oil Roll Control If the Oil Roll in the Oil Roll Assembly continuously touches the Heat Roll the Fuser Oil may degrade and oil stains may appear on the paper The...

Page 132: ...to when the paper top enters the Fuser B From when the bottom of the paper passes the Fuser to the end of retraction Figure 2 51 Advance Time 2 Emergencies a Emergency stop If the printer stops shuts down because of an emergency such as a paper jam the printer turns off the Oil Cam Solenoid b Operation after recovery from a paper jam paper remains in the Fuser The system advances the Oil Roll Asse...

Page 133: ...e life of the Oil Roll Assembly is determined by the number of printings oil quantity being used Two counters PV and Oil Rate are used to detect the life of the Oil Roll Assembly If either counter reaches a predetermined value an end of life warning or No Fuser Oil life expectancy exceeded error is detected a PV Counter The PV Counter counts the number of printings The counter detects the followin...

Page 134: ...reset only if the system detects a new Oil Roll Assembly 2 New Old Oil Roll Assembly detection The CRU Switch Assembly detects a new old Oil Roll Assembly Metal foil has been attached to the Oil Roll Assembly The CRU Switch Assembly checks the conductivity of the foil Conductive Oil Roll Assembly is new Not conductive Oil Roll Assembly is old When the Oil Cam Assembly rotates the Oil Cam Assembly ...

Page 135: ...ror is detected b Dispense time The dispense time is the accumulated hours that the Dispense Motor has been in use This data can be used to calculate toner consumption PDCD or ADC The conditions for the Main Fuser Assembly end of life detection are defined in the following table c Image count A toner image for one color is counted as one image The image count accumulates the number of images being...

Page 136: ... the maintenance menu End of life warning Maintenance service call error After replacing the Main Fuser Assembly with a new one per form Fuser Unit Reset in the maintenance menu C A U T I O N Do the following operations after you replace the Main Fuser Assembly with a new one Doing any of these operations before replacing the Main Fuser Assembly may result in damage to the system or cause the syst...

Page 137: ... major module used for desk top personal computer for memory Combining those equippements the printer has secceeded in processing data on the C235MAIN board at a higher speed Specific to color print one page of data processed is more than 4 times as large as in monochrome print Since the data to process is so heavy the printer has a high speed image procossor ASIC on the C235MAIN board for a faste...

Page 138: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 77 Figure 2 54 C235MAIN Board Circuit Diagrams 2 5 6 ...

Page 139: ...F of the CONTROLLER FAN E05B54 IC22 CCNV Color CoNVersion ASIC RGB CMYK M80C25 26 IC8 9 Contains the following functions IPL and FONT Upper 16 Bit data Lower 16 Bit data Has two mask ROMs size 512K bit x 16 bit 1MB to store the control program and font data AD9561 IC25 8 bit PWM controller TC55V1325FF IC24 The S RAM 1M bit which is used as the high speed working RAM for Bit bild in the E05B53 Tabl...

Page 140: ...C H A P T E R 3 DISASSEMBLYANDASSEMBLY ADJUSTMENT ...

Page 141: ...LY Removal PL3 1 30 25 LOW PAPER SENSOR Removal PL3 1 35 26 TRAY NO PAPER SENSOR Removal PL3 1 32 26 Multi Sheet Inserter 27 MSI TRAY ASSEMBLY Removal PL4 1 10 27 MSI ASSEMBLY Removal PL4 1 1 28 MSI FRONT COVER Removal PL4 1 3 29 MSI REAR COVER Removal PL4 1 4 29 MSI TOP COVER ASSEMBLY Removal PL4 2 4 30 MSI EDGE SENSOR Removal PL4 2 6 31 MSI SHORT N P SENSOR Removal PL4 2 7 31 PICK UP ROLL Remova...

Page 142: ...MBLY Removal PL9 3 22 91 CLEANER CAM SOLENOID Removal PL9 4 23 92 CLEANER CAM ASSEMBLY Removal PL9 4 26 93 EXIT 1 ROLL ASSEMBLY Removal PL9 3 7 94 CRU SWITCH ASSEMBLY Removal PL9 3 25 95 FUSER IN SENSOR Removal PL9 4 4 96 FUSER CHUTE FAN Removal PL9 4 10 97 Paper Exit 98 EXIT TRAY ASSEMBLY Removal PL10 1 10 98 EXIT UPPER ASSEMBLY Removal PL10 1 2 98 EXIT LOWER ASSEMBLY Removal PL10 1 1 99 EXIT 2 R...

Page 143: ... sure that it is always carried carefully by 4 people or more n When working on the FUSER ASSEMBLY or nearby parts be sure to wait until the temperature of the parts cool down to a safe level n When printing make sure that all the outer covers are installed n In case you need to print before assembling note the cautions below 1 Be careful not to get your hands and clothes caught in the rotating pa...

Page 144: ...eds periodical replacement clear the corresponding counter using the Maintenance Menu Refer to Chapter 6 The parts replaced and the corresponding operations to be performed are as listed below 2ND BTR ASSEMBLY 2ND BTR Clear MAIN FUSER ASSEMBLY FUSER Counter Clear NOTE When replacing MAIN FUSER ASSEMBLY replace FILTER ASSEMBLY as well o Check the program ROM version and update it if necessary Refer...

Page 145: ...ng to the numbers you can find the appearance and location of the parts efficiently o Directions are described as mentioned below See Figure 3 1 n Front Front side viewing the printer toward its front side n Back Rear side viewing the printer toward its front side n Left Left hand side viewing the printer toward its front side n Right Right hand side viewing the printer toward its front side o Scr...

Page 146: ...m the front right Figure 3 3 Printer viewed from the rear left 1 TOP COVER Face down tray 7 Top ventilation grill 2 PANEL UNIT Control Panel 8 RIGHT COVER ASSEMBLY Right Side Cover 3 FRONT COVER Front Cover 9 MSI ASSEMBLY MP Tray 4 Front ventilation grill 10 MSI TRAY ASSEMBLY Expansion Tray 5 UNIVERSAL TRAY Paper Cassette 11 MAIN P H ASSEMBLY Paper Path Unit 6 STOPPER COVER Stopper 1 9 5 4 3 2 6 7...

Page 147: ...e of the following 2 ways 1 Transferring the ROM updating program data RCC from the host computer via the standard parallel interface 2 Copying the program ROM from the flash ROM module which has the most updated program Also when you failed to write the program into the flash ROM and perform the same writing operation again or when you copy the program from the flash ROM module to another flash R...

Page 148: ... the personal computer and the printer starts initializing and warm up is completed within 5 minutes If the OS is Windows95 follow the steps below 1 Click Start then choose Shut Down 2 In the Shut Down Window select Reset the computer in MS DOS mode to reset the computer 3 MS DOS starts up Follow the steps below 4 Check that the message Ready is indicated on the LCD panel of the printer 5 To trans...

Page 149: ...s Keep the buttons down until proceeding to Step 4 All the LED lamps and LCD on the panel come on and the LCD indicates the message below Numeric is shown in place of and starts counting up then the engine initialization takes place 4 When the printer enters the program ROM copy mode the LCD message shown below appears Then press the Enter button The message below appears 5 When the program has be...

Page 150: ...ns and keep the buttons down until instructed to do so 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 counting up then the engine initialization takes place When the printer is in the ROM formatting mode the following messages are indicated consequently Release the buttons at this point The message below appears 3 A...

Page 151: ...ns 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 is in the ROM formatting mode the following messages are indicated consequently Release the buttons at this point The message below appears 3 ...

Page 152: ... SUPPORTs 4 Remove 2 screws black tapped 10mm securing the FRONT COVER ASSEMBLY and right and left HINGE PLATES Then remove the FRONT COVER ASSEMBLY and right and left HINGE PLATES Figure 3 5 Front Cover Assembly Removal 3 2 4 2 FRONT LOWER COVER Removal PL1 1 5 1 Remove the UNIVERSAL TRAY 2 Remove 2 screws silver cup head 8mm securing the FRONT LOWER COVER and remove the FRONT LOWER COVER Figure ...

Page 153: ... the TOP COVER ASSEMBLY 4 Disconnect 2 connectors P J317 from the OPERATION PANEL and remove the TOP COVER ASSEMBLY along with the OPERATION PANEL 5 Remove the OPERATION PANEL from the TOP COVER ASSEMBLY See Section 3 2 4 9 Figure 3 7 TOP COVER Removal C H E C K P O I N T When installing the TOP COVER ASSEMBLY be sure to fasten the 2 screws at the back to secure TOP COVER ASSEMBLY and REAR COVER A...

Page 154: ...ove the TENSION LEVER See Section 3 2 11 1 NOTE As a result of the next step the FRONT COVER ASSEMBLY will be supported with 2 hinge parts only Therefore be careful not to add excess force to the cover when handling it 6 Remove 2 screws black cup head 6mm securing the right and left COVER SUPPORT in the FRONT COVER ASSEMBLY to the printer body 7 Remove 7 screws black cup head 6mm securing the INNE...

Page 155: ...ve 6 screws silver cup head 8mm securing the REAR COVER ASSEMBLY and remove the REAR COVER ASSEMBLY Figure 3 9 REAR COVER ASSEMBLY Removal C H E C K P O I N T n When installing the REAR COVER ASSEMBLY be sure to fasten the 2 screws at the top to secure both TOP COVER ASSEMBLY and REAR COVER ASSEMBLY Pay special attention to the left screw Fasten the screw with the TOP COVER ASSEMBLY securely press...

Page 156: ... PL1 1 40 1 Take the UNIVERSAL TRAY out 2 Remove the FRONT LOWER COVER See Section 3 2 4 2 3 Remove the REAR COVER ASSEMBLY See Section 3 2 4 5 4 Remove 2 screws silver cup head 8mm securing the LEFT LOWER COVER NOTE In the following step be careful not to break the hooks in the LEFT LOWER COVER since they might be too tight 5 Shift the LEFT LOWER COVER forward to release the hooks securing the LE...

Page 157: ...GHT COVER ASSEMBLY Removal 3 2 4 9 OPERATION PANEL Removal PL1 1 60 1 Remove the TOP COVER along with the OPERATION PANEL See Section 3 2 4 3 NOTE In the following step be careful not to break the hooks in the OPERATION PANEL 2 Release the hooks in the OPERATION PANEL and remove the panel from the TOP COVER ASSEMBLY Figure 3 13 OPERATION PANEL Removal C H E C K P O I N T When installing the RIGHT ...

Page 158: ...BBER Removal PL2 2 9 1 Take the UNIVERSAL TRAY out See Section 3 2 5 1 NOTE In the following steps be careful not to bend the edge of the FRONT SNUBBER where paper is placed 2 Remove 2 screws black tapped 8mm securing the FRONT GUIDE ASSEMBLY and remove the FRONT GUIDE ASSEMBLY 3 Using a tool such as pliers release the hooks securing the FRONT SNUBBER and remove the SNUBBER SUPPORT Then remove the...

Page 159: ...e the FRONT GUIDE ASSEMBLY 4 Push down the BOTTOM PLATE ASSEMBLY to lock it at the bottom 5 Turn the UNIVERSAL TRAY over and remove 5 screws gold tapped 8mm securing the TRAY BOTTOM COVER Then remove the TRAY BOTTOM COVER 6 Remove the SECTOR GEAR SPRING from the TRAY HOUSING and SECTOR GEAR 7 Release the joint for the hole in the SECTOR GEAR and the swivel peg in the UNIVERSAL TRAY and slide the S...

Page 160: ...e REAR GUIDE PLATE R so that the REAR GUIDE will not drop 11 Remove 1 screw gold tapped 8mm securing the REAR GUIDE PLATE R and remove the REAR GUIDE R and the REAR GUIDE NOTE In the following step TRAY N F SPRINGS will spring out Therefore be careful not to lose them 12 Moving the PLATE LINK unlock the BOTTOM PLATE ASSEMBLY and open it Then slide the END GUIDE further right and remove it Figure 3...

Page 161: ...EMBLY See Section 3 2 7 1 2 Remove the MAIN P H ASSEMBLY with the MSI TRAY installed on it NOTE In the next step be careful not to damage the hinge part of the TURN IN CHUTE 3 Press the hinge at the rear part of the TURN IN CHUTE to release the peg and swivel the TURN IN CHUTE right around the front side as the supporting point Figure 3 18 TURN IN CHUTE Removal ...

Page 162: ...ing the TURN ROLL ASSEMBLY 11 Shift the TURN FRONT BEARING to the rear and remove the bearing 12 Shift the TURN ROLL ASSEMBLY forward to release the rear end and shift the rear part of the assembly to the right Then shifting the assembly to the rear remove it along with the TURN FRONT BEARING TURN REAR BEARING and TURN ARM ASSEMBLY 13 Remove the TURN FRONT BEARING AND TURN REAR BEARING from the TU...

Page 163: ... the MSI TRAY ASSEMBLY installed on it See Section 3 2 8 1 NOTE In the following step be careful with the metal plate as you maybe hurt with its sharp edge 4 Inserting your hand into the opening in the UNIVERSAL TRAY release the hook securing the FEED ROLL and remove the FEED ROLL Figure 3 20 FEED ROLL Removal C H E C K P O I N T When installing the FEED ROLL make sure the arrow marked on the side...

Page 164: ...e the OPTION BRACKET from the printer body NOTE In the following step be careful with the sharp edges of the OPTION BRACKET when handling it Remove the bracket if necessary 3 Disconnect the connector P J103B for the FEED SOLENOID and release its harness from the clump 4 Remove the screw silver 6mm securing the FEED SOLENOID and remove the FEED SOLENOID Figure 3 21 FEED SOLENOID Removal C H E C K P...

Page 165: ...e E ring securing the FEED GEAR and remove the FEED GEAR 8 Remove the screw silver 8mm securing the FEED SHAFT GUIDE and remove the FEED SHAFT GUIDE and FEED BEARING on the front 9 Shift the FEED ROLL ASSEMBLY forward to release the rear end from the frame Then move the end downward and move the FEED ROLL ASSEMBLY backward avoiding contact with the TRAY N P SENSOR ASSEMBLY and remove it along with...

Page 166: ...e printer body with a harness Therefore do not move the SIZE BRACKET ASSEMBLY too away from the printer 4 Remove 2 screws black cup head 8mm securing the SIZE BRACKET ASSEMBLY and separate the SIZE BRACKET ASSEMBLY from the printer body 5 Disconnect the connector P J102 for the SIZE SWITCH ASSEMBLY and remove the SIZE BRACKET ASSEMBLY 6 Remove the screw black cup head 12mm securing the SIZE SWITCH...

Page 167: ...emove the MAIN P H ASSEMBLY with the MSI TRAY ASSEMBLY installed on it See Section 3 2 8 1 4 Disconnect the following connectors n P J106 for LOW PAPER SENSOR and MAIN HARNESS ASSEMBLY n P J101 for TRAY N P HARNESS and MAIN HARNESS ASSEMBLY 5 Unhook the TRAY N P SENSOR ASSEMBLY from the frame and remove it Figure 3 24 TRAY N P SENSOR ASSEMBLY Removal C H E C K P O I N T Route the harness carefully...

Page 168: ...the UNIVERSAL TRAY See Section 3 2 5 1 2 Remove the MSI TRAY ASSEMBLY See Section 3 2 7 1 3 Remove the MAIN P H ASSEMBLY with the MSI TRAY ASSEMBLY installed on it See Section 3 2 8 1 4 Remove TRAY N P SENSOR ASSEMBLY See Section 3 2 6 7 5 Disconnect the connector P J107 for the TRAY NO PAPER SENSOR and remove the harness 6 Release the hooks securing the TRAY NO PAPER SENSOR from the TRAY N P BRAC...

Page 169: ...erter 3 2 7 1 MSI TRAY ASSEMBLY Removal PL4 1 10 1 Using a Phillips screw driver push the lock in the front arm of the MSI TRAY ASSEMBLY to the rear and release the front arm of the MSI FRAME 2 Release the rear arm from the MSI FRAME remove the MSI TRAY ASSEMBLY Figure 3 27 MSI TRAY ASSEMBLY Removal ...

Page 170: ...RTH WIRE to the REGI BRAKE BRACKET NOTE In the next step hold the MAIN P H COVER ASSEMBLY when you remove MAIN P H COVER ASSEMBLY or the P H COVER ASSEMBLY will be dislocated You can remove the MAIN P H COVER if necessary 5 Remove 2 screws black cup head 12mm securing the MSI ASSEMBLY and then remove the assembly by lifting it to the upper right Figure 3 28 MSI ASSEMBLY Removal C H E C K P O I N T...

Page 171: ...e MSI FRONT COVER and the at the bottom of the MSI FRAME and remove the MSI FRONT COVER Figure 3 29 MSI FRONT COVER Removal 3 2 7 4 MSI REAR COVER Removal PL4 1 4 1 Remove the MSI TRAY ASSEMBLY See Section 3 2 7 1 2 Remove the MSI ASSEMBLY See Section 3 2 7 2 3 Remove the screw silver tapped 14mm securing the MSI REAR COVER NOTE In the following step be careful not to break the hooks for the MSI R...

Page 172: ...e them too far 5 Remove 2 screws silver tapped 14mm securing the MSI TOP COVER ASSEMBLY and remove the MSI TOP COVER ASSEMBLY along with the MSI HARNESS COVER from the MSI FRAME 6 Release 2 hooks securing the MSI HARNESS COVER to the MSI TOP COVER ASSEMBLY and remove the MSI HARNESS COVER 7 Disconnect 2 connectors P J203 and P J204 for the MSI EDGE SENSOR and MSI SHORT N P SENSOR respectively and ...

Page 173: ... MSI EDGE SENSOR and remove the EDGE SENSOR Figure 3 32 MSI EDGE SENSOR Removal 3 2 7 7 MSI SHORT N P SENSOR Removal PL4 2 7 1 Remove the MSI TRAY ASSEMBLY See Section 3 2 7 1 2 Remove the MSI ASSEMBLY See Section 3 2 7 2 3 Remove the MSI FRONT COVER See Section 3 2 7 3 4 Remove the MSI REAR COVER See Section 3 2 7 4 5 Remove the MSI TOP COVER ASSEMBLY See Section 3 2 7 5 NOTE In the following ste...

Page 174: ...MBLY from the groove on the PICK UP SHAFT and move each FRONT CORE ROLL away from the PICK UP ROLL 20mm or more 4 Slide each PICK UP ROLL toward the corresponding FRONT CORE ROLL and lift them up to remove Figure 3 34 PICK UP ROLL Removal C H E C K P O I N T When installing the PICK UP ROLL set it in the following condition n Set the roll surface facing to the opposite side of the cam of the PICK ...

Page 175: ... until it is not above the RETARD PAD ASSEMBLY NOTE In the following steps note the following Be careful not to break the hook and hinge Be careful not to drop and lose the RETARD SPRING as it may dislocate 8 Using the standard driver or equivalent push the hook on the RETARD PAD ASSEMBLY to release the hook from the MSI FRAME and turn the RETARD PAD ASSEMBLY to the right 9 Set the pad surface of ...

Page 176: ...ess from the clamp 5 Remove the screw gold tapped 8mm securing the PICK UP SOLENOID and remove it Figure 3 36 PICK UP SOLENOID Removal C H E C K P O I N T n When routing the harness make sure it is not touching any gear n When installing the PICK UP SOLENOID be sure to engage the notch on the PICK UP CAM GEAR and the arm of the PICK UP SOLENOID securely n After installing the PICK UP SOLENOID chec...

Page 177: ... lose the PICK UP SPRING 8 Remove the PICK UP SPRING from the CLUTCH BRACKET and PICK UP GEAR NOTE In the following step be careful not to drop the MSI FRONT BEARING as it will come off 9 Remove 3 screws gold tapped 8mm securing the CLUTCH BRACKET and remove it along with the MSI CLUTCH NOTE In the following step be careful not to drop the MSI REAR BEARING as it will come off 10 Remove the MSI CLU...

Page 178: ...y one unit NOTE In the following step be careful with MSI BOTTOM ASSEMBLY as it springs up while the MSI ROLL ASSEMBLY is being removed 9 Remove 2 E rings securing the MSI ROLL ASSEMBLY and remove 2 MSI BEARINGs 10 Lift up the MSI ROLL ASSEMBLY and remove the MSI ROLL ASSEMBLY Figure 3 38 MSI ROLL ASSEMBLY Removal C H E C K P O I N T n Install the PICK UP CAM GEAR to the MSI ROLL ASSEMBLY with the...

Page 179: ...e following step MSI BOTTOM ASSEMBLY and MSI FRAME will be connected with a harness Therefore do not leave them too far 7 Release the pegs on the rear then front sides of the MSI BOTTOM ASSEMBLY from the MSI FRAME and remove the MSI BOTTOM ASSEMBLY 8 Remove the screw gold tapped 6mm securing the MSI EARTH WIRE to the MSI BOTTOM PLATE 9 Disconnect the connectors P J206 for MSI LONG N P SENSOR and r...

Page 180: ...e Section 3 2 7 3 4 Remove the MSI REAR COVER See Section 3 2 7 4 5 Remove the MSI TOP COVER ASSEMBLY See Section 3 2 7 5 6 Remove the MSI ROLL ASSEMBLY See Section 3 2 7 12 7 Remove the MSI BOTTOM ASSEMBLY See Section 3 2 7 13 NOTE In the following step be careful not to break the hooks for the MSI BASE TRAY 8 Release the MSI LONG N P SENSOR from the hook in the MSI BASE TRAY and remove the MSI L...

Page 181: ...the P H FRAME ASSEMBLY P H FRONT RAIL S and P H REAR RAIL S 5 Leaving the P H FRONT RAIL S P H FRONT RAIL L P H REAR RAIL S and P H REAR RAIL L in the printer take out the MAIN P H ASSEMBLY and remove it 6 Using a standard driver or equivalent push the stopper in the P H FRONT RAIL L inward to remove the stopper from the frame in the printer and remove the P H FRONT RAIL S along with the P H FRONT...

Page 182: ...oval PL5 1 5 1 Remove the MSI TRAY ASSEMBLY See Section 3 2 7 1 2 Remove the MSI ASSEMBLY See Section 3 2 7 2 3 Remove the MAIN P H ASSEMBLY See Section 3 2 8 1 4 Remove 2 screws gold tapped 8mm securing the PRE REGI CHUTE ASSEMBLY and remove the PRE REGI CHUTE ASSEMBLY Figure 3 42 PRE REGI CHUTE ASSEMBLY Removal ...

Page 183: ...steps be careful not to damage the housing which will be widen forcibly 5 Pulling the socket areas in the P H FRAME ASSEMBLY where the pegs in the P H TURN CHUTE ASSEMBLY fit in turn the P H TURN CHUTE ASSEMBLY in the direction indicated with the arrow 5 1 See the figure below to release the lower pegs from the P H FRAME ASSEMBLY Figure 3 43 P H TURN CHUTE ASSEMBLY Removal 1 2 6 Push the upper peg...

Page 184: ... silver 6mm securing the REGI EARTH WIRE to the REGI CHUTE ASSEMBLY and release the wire 5 Remove the E ring securing the REGI CHUTE ASSEMBLY Figure 3 45 REGI CHUTE ASSEMBLY Removal 1 2 6 Open the REGI CHUTE ASSEMBLY vertically and shift it to the rear until it touches the bottom of the rear stud to release the hole in the front from the front stud Then lift up the front end and pull it out to the...

Page 185: ...he harness NOTE In the following step be careful not to drop gears as they will be disengaged 6 Remove 2 E rings fixing the PRE REGI SUPPORT and remove the PRE REGI SUPPORT toward the rear 7 Among 2 PRE REGI GEAR 1 remove the outer one to the rear from the stud 8 Disconnect the connector P J95 for the PRE REGI CLUTCH through the hole to the back of the MAIN P H ASSEMBLY 9 Remove the PRE REGI CLUTC...

Page 186: ...following step make sure you won t leave the MSI OUT HOLDER too far from the MSI FRAME ASSEMBLY since they are kept connected with the harness 8 Remove 2 screws gold tapped 8mm securing the MSI OUT HOLDER and separate the MSI OUT HOLDER from the MSI FRAME ASSEMBLY 9 Remove the E ring in the front securing the PRE REGI ROLL ASSEMBLY and then using a standard screw driver remove the PRE REGI BEARING...

Page 187: ...CLUTCH from the back of the MAIN P H ASSEMBLY and release the harness NOTE In the following step be careful not to lose the REGI UPPER BEARING since it may come off when the REGI CLUTCH is removed NOTE In the following step be careful not to lose the REGI SPACER 5 Pull the connector P J94 through the harness hole to the rear side of the MAIN P H ASSEMBLY 6 Remove the E ring fixing the REGI CLUTCH ...

Page 188: ...it closed while turning over the MAIN P H ASSEMBLY 4 Disconnect the connector P J109 for the REGI BRAKE CLUTCH from the back of the MAIN P H ASSEMBLY and release the harness Figure 3 51 REGI BRAKE CLUTCH Removal 1 2 5 Remove 3 screws gold tapped 8mm securing the REGI BRAKE ASSEMBLY and remove the REGI BRAKE ASSEMBLY 6 Remove 2 E rings one securing the REGI BRAKE CLUTCH and the other securing the R...

Page 189: ...at the back of the REGI METAL ROLL 6 Remove the REGI BRAKE ASSEMBLY Refer to Section 3 2 8 8 7 Remove the E ring fixing the REGI OUT GEAR and remove the REGI OUT GEAR 8 Using a standard driver or equivalent remove the REGI UPPER BEARING in front of the REGI METAL ROLL 9 Open the REGI CHUTE ASSEMBLY 10 Lift up the rear part of the REGI METAL ROLL and shift it to the rear Then remove the REGI METAL ...

Page 190: ...GI REAR SPRING 7 Remove the front E ring fixing the REGI RUBBER ROLL to remove the REGI GEAR 8 Taking out the front REGI LOWER BEARING remove the REGI FRONT SPRING and REGI LOWER BEARING 9 Remove the E ring securing the REGI RUBBER ROLL by the rear end Then taking out the rear REGI LOWER BEARING remove the REGI LOWER BEARING and the REGI REAR SPRING NOTE In the following step be careful not to dam...

Page 191: ...TE ASSEMBLY to keep it closed while turning over the MAIN P H ASSEMBLY 4 Disconnect the connector P J93 for REGI SENSOR from the back of the MAIN P H ASSEMBLY NOTE In the following step be careful not to break the hooks in the P H FRAME ASSEMBLY 5 Release the hooks on the P H FRAME ASSEMBLY securing the REGI SENSOR and lift the sensor up vertically to remove Figure 3 55 REGI SENSOR Removal C H E C...

Page 192: ...following step do not move the OHP SENSOR ASSEMBLY too far from the P H FRAME ASSEMBLY since they are connected with the harness 4 Remove the screw gold tapped 8mm securing the OHP SENSOR ASSEMBLY and remove the OHP SENSOR ASSEMBLY from the P H FRAME ASSEMBLY 5 Disconnect the connectors P J98 for the FRONT OHP SENSOR 6 Remove the screw gold 6mm securing the FRONT OHP SENSOR and remove the FRONT OH...

Page 193: ... following step do not move the OHP SENSOR ASSEMBLY too away from the P H FRAME ASSEMBLY since they are connected with the harness 4 Remove the screw gold tapped 8mm securing the OHP SENSOR ASSEMBLY and remove the OHP SENSOR ASSEMBLY from the P H FRAME ASSEMBLY 5 Disconnect the connectors P J99 for the REAR OHP SENSOR 6 Remove the screw gold 6mm securing the REAR OHP SENSOR and remove the REAR OHP...

Page 194: ...nough to hold the belt on the top then take out the DRUM CARTRIDGE horizontally and remove it Figure 3 58 DRUM CARTRIDGE Removal 3 2 9 2 WASTE TONER BOX Removal PL6 1 12 1 Open the FRONT COVER ASSEMBLY NOTE After removing the WASTE TONER BOX in the following step place it level on a safe place 2 Push down the tab on the hook of the WASTE TONER BOX and take out the WASTE TONER BOX horizontally to r...

Page 195: ...EMBLY to away from the XL RAIL ASSEMBLY NOTE In the following steps keep your hands away from the window part of the ROS ASSEMBLY where laser beam is emitted and other functioning parts such as motor shaft 4 Remove 4 screws black cup head 12mm securing the ROS ASSEMBLY and remove the ROS ASSEMBLY from the printer 5 Remove the connector P J123 at bottom of the ROS ASSEMBLY and remove the ROS ASSEMB...

Page 196: ...mp and pull it out from the harness hole to bring it to the inner side NOTE In the following step keep your hands off the IBT BELT ASSEMBLY and the Magnet roll in the DEVELOPER ASSEMBLY 6 Remove the E ring securing the ADC SENSOR ASSEMBLY 7 Shift the ADC SENSOR ASSEMBLY to the rear to release the front end from the frame Then release the rear end of the shaft from the frame and take the ADC SENSOR...

Page 197: ...o damage the IBT BELT ASSEMBLY and the Magnet Rolls in the Developer Assembly with such parts as XL RAIL ASSEMBLY and the harnesses NOTE In the following step be sure to keep your hands off the IBT BELT ASSEMBLY and the Magnet Roll surface 6 Remove 4 screws sliver cup head 8mm securing the XL RAIL ASSEMBLY and then remove the XL RAIL ASSEMBLY Figure 3 62 XL RAIL ASSEMBLY Removal C H E C K P O I N ...

Page 198: ...TE TONER SENSOR Figure 3 63 WASTE TONER SENSOR Removal 3 2 9 7 TONER BOX SENSOR Removal PL6 1 43 1 Remove the TOP COVER ASSEMBLY See Section 3 2 4 3 2 Remove the DRUM CARTRIDGE See Section 3 2 9 1 3 Remove the ROS ASSEMBLY See Section 3 2 9 3 4 Remove the XL RAIL ASSEMBLY See Section 3 2 9 5 5 Release the harness for the TONER BOX SENSOR from the clamp 6 Disconnect the connector P J83A for the TON...

Page 199: ...ve the DRUM CARTRIDGE See Section 3 2 9 1 3 Remove the ROS ASSEMBLY See Section 3 2 9 3 4 Remove the XL RAIL ASSEMBLY See Section 3 2 9 5 5 Take the harness for the ERASE LAMP ASSEMBLY out of the hole to release it 6 Using a standard driver release the hooks securing the ERASE LAMP ASSEMBLY from the XL RAIL and remove the ERASE LAMP ASSEMBLY Figure 3 65 ERASE LAMP ASSEMBLY Removal ...

Page 200: ...L7 1 4 1 Open the FRONT COVER ASSEMBLY 2 Push up the ROTARY LATCH LEVER and turn the ROTARY KNOB ASSEMBLY to set the Toner Cartridge to be replaced to the replacing position NOTE After removing the toner cartridge place it level on a safe surface 3 Turn the lever on the cartridge to the unlocking position and take the Toner Cartridge out Figure 3 66 Toner Cartridge Removal C H E C K P O I N T Inst...

Page 201: ... ASSEMBLY right to release the hook and remove the ROTARY LATCH ASSEMBLY NOTE In the following step be sure not to drop the screw 8 Turn the ROTARY FRAME ASSEMBLY until the screw silver M4 22mm securing the Developer Assembly is aligned with the round cutout in the frame in front Then remove the screw inserting a driver NOTE In the following step note the points below n Never touch the Magnet Roll...

Page 202: ...CH See Section 3 2 16 3 7 Remove the Developer Assembly that has the Developer to be removed See Section 3 2 10 2 NOTE Before proceeding to the next step note the points below n Do not scatter toner n Place the Developer Assembly on a sheet of paper set on a desk or floor n Get a sheet of paper on which you place the Developer n Be careful not to drop and lose the gear as it may dislocate when the...

Page 203: ...he FAN DUCT and shift the FAN DUCT upward to release the hooks from the frame Then remove the FAN DUCT along with the DEVE FAN Figure 3 69 ROTARY SENSOR Removal 1 2 5 Disconnect the connector P J58 for the ROTARY SENSOR 6 Remove the screw silver 6mm securing the ROTARY SENSOR ASSEMBLY and remove the ROTARY SENSOR ASSEMBLY 7 Unhook the ROTARY SENSOR from the ROTARY SENSOR PLATE and remove the ROTAR...

Page 204: ...on 3 2 10 4 11 Remove the FUSER ASSEMBLY with the EXIT TRAY ASSEMBLY and OIL ROLL ASSEMBLY installed See Section 3 2 12 1 12 Remove the EXIT UPPER ASSEMBLY See Section 3 2 13 2 13 Remove the EXIT LOWER ASSEMBLY See Section 3 2 13 3 14 Remove the P H MOTOR ASSEMBLY See Section 3 2 14 2 15 Remove the ROTARY MOTOR PWB See Section 3 2 14 3 16 Remove the ROTARY MOTOR ASSEMBLY See Section 3 2 14 4 17 Re...

Page 205: ...ar side and remove the ROTARY REAR BEARING NOTE In the following step support the front part of the ROTARY FRAME ASSEMBLY as the front end of the shaft in the ROTARY FRAME ASSEMBLY will be released from the base frame 25 Remove the ROTARY FRONT BEARING in the front 26 Release the front end of the shaft in the ROTARY FRAME ASSEMBLY from the U cut in the base frame Then shift the ROTARY FRAME ASSEMB...

Page 206: ...the clamp holding the CART SENSOR HARNESS to the DEVE TIE PLATE 7 Using a mini driver push inside of 2 concaves in the CART SENSOR ASSEMBLY to release hooks from the frame Then shift the CART SENSOR ASSEMBLY to the left and remove it 8 Disconnect the connector P J168 for the CARTRIDGE SENSOR and remove the CART SENSOR HARNESS Figure 3 73 CARTRIDGE SENSOR Remove 1 2 9 Remove the screw gold tapped 1...

Page 207: ...OVER SWITCH L respectively and release the harnesses from the USED SENSOR PLATE 3 Remove the screw gold tapped 8mm securing the USED SENSOR ASSEMBLY and remove the USED SENSOR ASSEMBLY 4 Remove the screw gold tapped 8mm securing the USED CART SENSOR and remove the USED CART SENSOR from the USED SENSOR PLATE Figure 3 75 USED CART SENSOR Removal C H E C K P O I N T Route the harness tightly via the ...

Page 208: ...DGE See Section 3 2 9 1 NOTE In the following step keep your hands off the IBT BELT ASSEMBLY 3 Turn the TENSION LEVER to the locking position and remove the screw gold with a washer 12mm securing the TENSION LEVER NOTE It is better to use a magnetic forced screw driver to avoid dropping screw inside the printer 4 Take the TENSION LEVER out to remove Figure 3 76 TENSION LEVER Removal ...

Page 209: ...3 Release the 1ST BTR WIRE and the CONTACT ROLL WIRE from the clamp and leave it on the inner side of the frame 14 Disconnect the connector P J57 for the TRO SENSOR 15 Loosen the screw gold with a washer 8mm securing the AUGER HIGH ASSEMBLY at the back of the printer and shift the AUGER HIGH ASSEMBLY right Then fasten the screw back to fix the AUGER HIGH ASSEMBLY Figure 3 77 TRANSFER ASSEMBLY Remo...

Page 210: ... ASSEMBLY left and lift up the TRANSFER ASSEMBLY to remove Figure 3 78 TRANSFER ASSEMBLY Removal 2 2 C H E C K P O I N T n When installing the IBT BELT ASSEMBLY cover the belt surface with paper to protect it n When installing the TRANSFER ASSEMBLY put the TRANSFER ASSEMBLY wire inside the printer first then align the COLLAR BUR in the TRANSFER ASSEMBLY with the IBT FRONT BRACKET and the IBT REAR ...

Page 211: ...OLENOID and release the harness from the clamp 4 Remove the screw gold 6mm securing the BTR CAM SOLENOID and remove the BTR CAM SOLENOID Figure 3 80 BTR CAM SOLENOID Removal C H E C K P O I N T When installing the BTR CAM SOLENOID make sure it is under the following condition n The arm of the BTR CAM SOLENOID is in induced condition n The lower end of the arm is in contact with the Spring Clutch i...

Page 212: ...PORT ASSEMBLY Figure 3 82 BELT CLEANER ASSEMBLY Removal 1 2 NOTE In the following step keep your hands off the IBT BELT ASSEMBLY and Cleaning Blade in the BELT CLEANER ASSEMBLY Also do not get the Cleaning Blade touch any other parts NOTE In the following step place the removed BELT CLEANER ASSEMBLY on a sheet of paper as toner may spill 4 Take the BELT CLEANER ASSEMBLY out from the left side of t...

Page 213: ... Section 3 2 11 4 NOTE In the following step do not touch the IBT BELT ASSEMBLY and the 2ND BTR ASSEMBLY Also do not get any other parts touch the 2ND BTR ASSEMBLY 3 Take the 2ND BTR ASSEMBLY out from the left side of the printer Figure 3 84 2ND BTR ASSEMBLY Removal C H E C K P O I N T n After replacing the 2ND BTR ASSEMBLY with a new one perform 2ND BTR Reset See Section 6 2 in Chapter 6 Maintena...

Page 214: ...SSEMBLY See Section 3 2 12 2 12 Remove the HVPS See Section 3 2 16 2 13 Remove the TRANSFER ASSEMBLY See Section 3 2 11 2 14 Remove the BTR CAM SOLENOID See Section 3 2 11 3 15 Remove the BELT CLEANER ASSEMBLY See Section 3 2 11 4 16 Remove the 2ND BTR ASSEMBLY See Section 3 2 11 5 17 Release the DTS WIRE from all clamps and bring it to the inner side of the frame 18 Remove 3 screws gold cup head ...

Page 215: ...SSEMBLY See Section 3 2 9 5 11 Remove the FUSER ASSEMBLY with the EXIT TRAY ASSEMBLY and the OIL ROLL ASSEMBLY See Section 3 2 12 2 12 Remove the HVPS See Section 3 2 16 2 13 Remove the TRANSFER ASSEMBLY See Section 3 2 11 2 14 Remove the BTR CAM SOLENOID See Section 3 2 11 3 15 Remove the BELT CLEANER ASSEMBLY See Section 3 2 11 4 16 Remove the 2ND BTR ASSEMBLY See Section 3 2 11 5 17 Remove the ...

Page 216: ...E In the following steps toner might spill from the AUGER HIGH ASSEMBLY Be sure to place a sheet of paper over the lower frame in the AUGER HIGH ASSEMBLY and handle the assembly carefully to prevent toner from spilling NOTE In the following step place the removed AUGER HIGH ASSEMBLY on a sheet of paper to receive spilt toner 25 Move the AUGER HIGH ASSEMBLY forward to release it from the peg and re...

Page 217: ...emove the XL RAIL ASSEMBLY See Section 3 2 9 5 11 Remove the HVPS See Section 3 2 16 2 NOTE In the following step never touch the IBT BELT surface but the ribs on the sides 12 Remove the TRANSFER ASSEMBLY See Section 3 2 11 2 13 Install the TENSION LEVER and lift up the PUSH IN SHAFT 14 Wide the arms on the TRANSFER ASSEMBLY to remove the PUSH IN SHAFT Figure 3 89 IBT BELT ASSEMBLY Removal 1 3 15 ...

Page 218: ...move the IBT BELT ASSEMBLY from the TRANSFER ASSEMBLY Figure 3 91 IBT BELT ASSEMBLY Removal 3 3 l C H E C K P O I N T n When installing the IBT BELT ASSEMBLY be careful not to damage or stain it n Before installing the PUSH IN SHAFT clean the shaft to remove any oil and foreign matter ...

Page 219: ...NNER COVER ASSEMBLY See Section 3 2 4 4 6 Remove the MSI TRAY ASSEMBLY See Section 3 2 7 1 7 Pull out the MAIN P H ASSEMBLY with the MSI ASSEMBLY on it See Section 3 2 8 1 8 Remove the ROS ASSEMBLY See Section 3 2 9 3 9 Remove the ADC SENSOR ASSEMBLY See Section 3 2 9 4 10 Remove the XL RAIL ASSEMBLY See Section 3 2 9 5 11 Remove the HVPS See Section 3 2 16 2 12 Remove the TRANSFER ASSEMBLY See Se...

Page 220: ...EMBLY See Section 3 2 13 1 2 Draw out the UNIVERSAL TRAY 3 Draw out the FUSER ASSEMBLY 4 Remove the OIL ROLL ASSEMBLY See Section 3 2 12 1 NOTE FUSER ASSEMBLY weighs quite heavily Therefore in the following step be careful not drop it or get it touch with other parts 5 Loosen the screw black cup head 8mm at the front left of the printer and lift up the FUSER ASSEMBLY to the upper left and remove t...

Page 221: ...MBLY See Section 3 2 12 1 3 Remove the FUSER ASSEMBLY See Section 3 2 12 2 4 Disconnect 2 connectors P J72B P J79 for the MAIN FUSER ASSEMBLY 5 Remove 2 screws gold with a washer 8mm securing the MAIN FUSER ASSEMBLY and remove the MAIN FUSER ASSEMBLY Figure 3 95 MAIN FUSER ASSEMBLY Removal C H E C K P O I N T After replacing the MAIN FUSER ASSEMBLY with a new one perform Fuser Unit Reset See Chapt...

Page 222: ...emove the screw silver tapped 14mm securing the TEMP SENSOR ASSEMBLY and release the harness from the hook on the FUSER UPPER ASSEMBLY NOTE In the following step be careful not to drop the FUSER FRONT COVER and the FUSER REAR COVER since they will not be supported as the FUSSER UPPER ASSEMBLY is removed 6 Remove the following 4 screws securing the FUSER UPPER ASSEMBLY 2 outer screws gold with a wa...

Page 223: ...AT ROLL carefully NOTE In the following step avoid damaging the H R HEATER and the P R HEATER when disconnecting the connector P JF791 which is tightly connected 7 Release the wire and harness from the hook on the FUSER REAR COVER and disconnect the connector P JF791 for the P R HEATER and the H R HEATER NOTE In the following step gear will be released as the FUSER REAR COVER is removed Be careful...

Page 224: ...onnected in the next step is firmly connected Therefore be careful not to break the H R HEATER and the P R HEATER when disconnecting the connector 7 Release the wire and harness from the hook on the FUSER REAR COVER and disconnect the connector P JF791 for the P R HEATER and the H R HEATER NOTE In the following step gear will be released as the FUSER REAR COVER is removed Therefore be careful not ...

Page 225: ... GUIDE ASSEMBLY in the following step be careful not to damage the PRESSURE ROLL with the P R FINGERs NOTE When removing the LOWER GUIDE ASSEMBLY in the following step make sure that the FUSER EXIT ACTUATOR does not come off interfering with the FUSER EXIT SENSOR 6 Remove the screw gold tapped 12mm securing the LOWER GUIDE ASSEMBLY Then shift LOWER GUIDE ASSEMBLY backward to remove Figure 3 99 LOW...

Page 226: ... Release the hooks securing the FUSER EXIT SENSOR from the FUSER BOTTOM PLATE and remove the FUSER EXIT SENSOR Figure 3 100 FUSER EXIT SENSOR Removal 3 2 12 9 UPPER GUIDE ASSEMBLY Removal PL9 2 32 1 Remove the EXIT TRAY ASSEMBLY See Section 3 2 13 1 2 Remove the OIL ROLL ASSEMBLY See Section 3 2 12 1 3 Remove the FUSER ASSEMBLY See Section 3 2 12 2 4 Remove the MAIN FUSER ASSEMBLY See Section 3 2 ...

Page 227: ...UPPER GUIDE ASSEMBLY 8 Release the nuts securing the front and rear NIP SPRINGs 9 Remove the NIP SPRINGs 10 Remove the H R RING securing the rear H R GEAR and remove the rear H R GEAR and the REAR H R BEARING 11 Remove the front H R RING and remove the front H R BEARING NOTE In the following step be careful not to damage the HEAT ROLL surface 12 Shift the HEAT ROLL backward to release the front en...

Page 228: ...ee Section 3 2 12 6 8 Remove the LOWER GUIDE ASSEMBLY See Section 3 2 12 7 9 Remove the UPPER GUIDE ASSEMBLY See Section 3 2 12 9 10 Remove the HEAT ROLL See Section 3 2 12 10 11 Remove the screw gold 5mm securing the FUSER INLET PLATE and remove the FUSER INLET PLATE NOTE In the following step be careful not to damage the PRESSURE ROLL surface 12 Lift up the PRESSURE ROLL along with the P H BEARI...

Page 229: ...HEAT ROLL See Section 3 2 12 10 11 Remove the PRESSURE ROLL See Section 3 2 12 11 12 Remove the screw black cup head 16mm securing the FUSER REAR FRAME and remove the FUSER REAR FRAME and the FUSER REAR BRACKET along with 2 gears 13 Remove the screw black cup head 16mm securing the FUSER FRONT FRAME and remove the FUSER FRONT FRAME and the FUSER FRONT BRACKET along with the NIP SCREWs 14 Disconnec...

Page 230: ...GE CHUTE 6 Remove the screw gold tapped 10m securing the EXCHANGE STOPPER F and then remove the EXCHANGE STOPPER F 7 Remove the screw gold tapped 10mm securing the EXCHANGE STOPPER R and then remove the EXCHANGE STOPPER R NOTE In the following step be careful not to break the front and rear hinges in the EXCHANGE CHUTE 8 Remove the EXCHANGE CHUTE by taking it out to the right horizontally Figure 3...

Page 231: ... TRAY ASSEMBLY 5 Remove 2 screws gold tapped 10mm securing the FUSER REAR RAIL and separate the FUSER REAR RAIL from the FUSER TRAY ASSEMBLY 6 Disconnect the connector P J73 for the OIL CAM SOLENOID and release the harness from the clamp 7 Remove 2 screw gold tapped 10mm securing the OIL CAM SOLENOID and remove the OIL CAM SOLENOID Figure 3 106 OIL CAM SOLENOID Removal C H E C K P O I N T n When i...

Page 232: ...n 3 2 12 13 6 Remove the OIL CAM SOLENOID See Section 3 2 12 14 7 Disconnect the connector P J74 for the EXCHANGE SOLENOID and release the harness from the clamp NOTE In the following step be careful not to drop the gear since it will be disengaged when the EXCHANGE BRACKET is removed 8 Remove the screw gold tapped 10mm securing the SOLENOID ASSEMBLY and remove the SOLENOID ASSEMBLY along with the...

Page 233: ...BLY See Section 3 2 12 2 4 Remove the MAIN FUSER ASSEMBLY See Section 3 2 12 3 5 Remove the OIL CAM SOLENOID See Section 3 2 12 14 6 Remove the EXCHANGE SOLENOID See Section 3 2 12 15 NOTE In the following step be careful not to break the hook on the OIL CAM ASSEMBLY 7 Release 4 hooks on the FUSER TRAY LEVER and remove the FUSER TRAY LEVER 8 Remove the OIL CAM ASSEMBLY by pulling it out to the lef...

Page 234: ...USER REAR RAIL and separate the FUSER REAR RAIL from the FUSER TRAY ASSEMBLY 6 Disconnect the connector P J62 for the CLEANER CAM SOLENOID and release the harness from the frame 7 Remove 2 screws gold tapped 10mm securing the INPUT BRACKET FT and remove the INPUT BRACKET FT along with the FUSER EARTH A 8 Remove 2 screws gold tapped 10mm securing the CLEANER CAM SOLENOID and remove the CLEANER CAM ...

Page 235: ...apped 10mm securing the FUSER FRONT RAIL and remove the FUSER FRONT RAIL from the FUSER TRAY ASSEMBLY NOTE When removing the CLEANER CAM in the following step be careful not to drop and lose the CLEANER CAM PIN 7 Remove the E ring securing the CLEANER CAM and remove the CLEANER CAM CLEANER CAM PIN CLN CAM BEARING F 8 Pull out the CLEANER CAM ASSEMBLY backward and remove tit along with the CLN CAM ...

Page 236: ...XIT 1 ROLL ASSEMBLY 6 Push the front EXIT 1 BEARING to the rear and slide the front part of the EXIT 1 ROLL ASSEMBLY to the right NOTE In the following step be careful not drop the EXIT 1 BEARING at the rear end of the EXIT 1 ROLL ASSEMBLY since it will be released from the FUSER TRAY 7 Shift the EXIT 1 ROLL ASSEMBLY forward to release the rear end and remove the EXIT 1 ROLL ASSEMBLY to the rear a...

Page 237: ...SEMBLY See Section 3 2 12 3 5 Remove the EXCHANGE CHUTE See Section 3 2 12 13 6 Remove the EXCHANGE SOLENOID See Section 3 2 12 15 7 Remove the FUSER TRAY LEVER See Section 3 2 12 16 8 Disconnect the connector P J77 for the CRU SWITCH ASSEMBLY and release the harness from the clamp NOTE Be careful not to damage the contact parts of the CRU SWITCH ASSEMBLY 9 Release the hooks securing the CRU SWITC...

Page 238: ...and then lift up the HORIZONTAL CHUTE to remove 3 Remove the four screws gold tapped 10 mm securing the FUSER BOTTOM COVER and remove the FUSER BOTTOM COVER 4 Release the hook for the FUSER IN HOLDER from the FUSER TRAY and then remove the FUSER IN HOLDER 5 Disconnect the connector P J117 for the FUSER IN SENSOR 6 Release the hook for the FUSER IN SENSOR from the FUSER TRAY and then remove the FUS...

Page 239: ...emove the two screws gold with a washer 8 mm securing the HORIZONTAL CHUTE and then lift up the HORIZONTAL CHUTE to remove 3 Remove the four screws gold tapped 10 mm securing the FUSER BOTTOM COVER and remove the FUSER BOTTOM COVER 4 Remove the FUSER CHUTE FAN from the FUSER TRAY 5 Disconnect the connector P J80 for the FUSER CHUTE FAN Figure 3 115 FUSER CHUTE FAN Removal ...

Page 240: ...oval PL10 1 10 3 2 13 2 EXIT UPPER ASSEMBLY Removal PL10 1 2 1 Open the exit upper assembly NOTE In the following step be careful not to break the hinge in the EXIT UPPER ASSEMBLY 2 Push the front hinge part of the EXIT UPPER ASSEMBLY inward to release it from the peg on the EXIT LOWER ASSEMBLY Then release the rear hinge and remove the EXIT UPPER ASSEMBLY Figure 3 117 Figure 3 94 EXIT UPPER ASSEM...

Page 241: ...ng the EXIT LOWER ASSEMBLY and remove the EXIT LOWER ASSEMBLY by lifting it up Figure 3 118 EXIT LOWER ASSEMBLY Removal 3 2 13 4 EXIT 2 ROLL ASSEMBLY Removal PL10 2 5 1 Remove the TOP COVER ASSEMBLY See Section 3 2 4 3 2 Remove the REAR COVER ASSEMBLY See Section 3 2 4 5 3 Remove the FUSER ASSEMBLY with the EXIT TRAY ASSEMBLY and the OIL ROLL ASSEMBLY on it See Section 3 2 12 2 4 Remove the EXIT U...

Page 242: ...ARING 4 Remove the EXIT 3 ROLL ASSEMBLY Figure 3 120 EXIT 3 ROLL ASSEMBLY Removal 3 2 13 6 FUSER FAN Removal PL10 2 15 1 Draw out the FUSER ASSEMBLY 2 Remove the REAR COVER ASSEMBLY See Section 3 2 4 5 3 Disconnect the connector P J111B for the FUSER FAN and release the harness from the clamp 4 Widen the hooks securing the FUSER FAN and remove the FUSER FAN Figure 3 121 FUSER FAN Removal C H E C K...

Page 243: ...he TOP EXIT SENSOR 7 Release the hooks securing the TOP EXIT SENSOR and remove the TOP EXIT SENSOR Figure 3 122 TOP EXIT SENSOR Removal 3 2 13 8 EXIT CHUTE SWITCH Removal PL10 2 13 1 Remove the TOP COVER ASSEMBLY See Section 3 2 4 3 2 Remove the REAR COVER ASSEMBLY See Section 3 2 4 5 3 Remove the FUSER ASSEMBLY with the EXIT TRAY ASSEMBLY and the OIL ROLL ASSEMBLY on it See Section 3 2 12 2 4 Rem...

Page 244: ... 3 2 16 2 3 Release 3 harnesses from the clamp on the P H DRIVE ASSEMBLY 4 Remove the screw silver cup head 8mm securing the DRIVE CLAMP N Figure 3 124 P H DRIVE ASSEMBLY Removal 1 2 5 Remove 5 screws black cup head 10mm securing the P H DRIVE ASSEMBLY and remove the P H DRIVE ASSEMBLY along with 2 DRIVE CLAMP Ys 6 Remove the both 2 DRIVE CLAMP Ys from the P H DRIVE ASSEMBLY Figure 3 125 P H DRIVE...

Page 245: ...PORTs from the P H MOTOR ASSEMBLY Figure 3 126 P H MOTOR ASSEMBLY Removal 3 2 14 3 ROTARY MOTOR PWB Removal PL11 1 21 1 Remove the REAR COVER ASSEMBLY See Section 3 2 4 5 NOTE In the following step the ROTARY MOTOR PWB will be kept connected to the printer body with the harness Therefore be careful not to leave the ROTARY MOTOR PWB too far from the printer 2 Remove the screw silver cup head 8mm se...

Page 246: ... COVER ASSEMBLY See Section 3 2 4 5 2 Disconnect the connector P J247 for the ROTARY MOTOR ASSEMBLY 3 Remove 3 screws gold 6mm securing the ROTARY MOTOR ASSEMBLY and remove the ROTARY MOTOR ASSEMBLY Figure 3 128 ROTARY MOTOR ASSEMBLY Removal C H E C K P O I N T When installing the ROTARY MOTOR ASSEMBLY do not catch the harness between the parts ...

Page 247: ...Y MOTOR ASSEMBLY See Section 3 2 14 4 5 Disconnect the connector P J55 for the DISPENSE MOTOR ASSEMBLY 6 Remove 2 screws silver 6m securing the DISPENSE MOTOR ASSEMBLY Then shift the DISPENSE MOTOR ASSEMBLY to align the gear with the cutout in the frame and remove the DISPENSE MOTOR ASSEMBLY Figure 3 130 DISPENSE MOTOR ASSEMBLY Removal C H E C K P O I N T When installing the DISPENSE MOTOR ASSEMBL...

Page 248: ...n 3 2 14 2 4 Remove the LVPS See Section 3 2 16 1 5 Release the harness from the clamp on the P H MOTOR BRACKET 6 Remove the screw black cup head 4mm securing the P H MOTOR BRACKET and remove the P H MOTOR BRACKET 7 Remove the KL clip securing the AUGER HIGH ASSEMBLY 8 Remove 5 screws black cup head 4mm securing the FUSER DRIVE ASSEMBLY and remove the FUSER DRIVE ASSEMBLY Figure 3 131 FUSER DRIVE ...

Page 249: ...OR ASSEMBLY Removal PL11 1 12 1 Remove the REAR COVER ASSEMBLY See Section 3 2 4 5 2 Disconnect 2 connectors P J51 and P J52 for the PROCESS MOTOR ASSEMBLY 3 Remove 4 screws gold 8mm securing the PROCESS MOTOR ASSEMBLY and remove the PROCESS MOTOR ASSEMBLY Figure 3 132 PROCESS MOTOR ASSEMBLY Removal ...

Page 250: ...3 2 9 4 10 Remove the XL RAIL ASSEMBLY See Section 3 2 9 5 11 Remove the HVPS See Section 3 2 16 2 12 Remove the TRANSFER ASSEMBLY See Section 3 2 11 2 13 Remove the P H DRIVE ASSEMBLY See Section 3 2 14 1 14 Remove the P H MOTOR ASSEMBLY See Section 3 2 14 2 15 Remove the screw black cup head 8mm securing the HVPS BRACKET 1 and remove the HVPS BRACKET 1 along with 2 ELEC CLAMP Ss 16 Disconnect 2 ...

Page 251: ...n it See Section 3 2 12 2 3 Remove the P H MOTOR ASSEMBLY See Section 3 2 14 2 4 Remove the ROTARY MOTOR PWB See Section 3 2 14 3 5 Remove the LVPS See Section 3 2 16 1 6 Remove the FUSER DRIVE ASSEMBLY See Section 3 2 14 6 7 Disconnect the connector P J56 for the DEVE CLUTCH ASSEMBLY and release the harness from the clamp 8 Remove 4 screws silver cup head 8mm securing the DEVE CLUTCH ASSEMBLY and...

Page 252: ...SSEMBLY See Section 3 2 4 3 6 Remove the REAR COVER ASSEMBLY See Section 3 2 4 5 7 Remove the EXIT UPPER ASSEMBLY See Section 3 2 13 2 8 Remove the EXIT LOWER ASSEMBLY See Section 3 2 13 3 9 Remove the FRONT COVER SWITCH L See Section 3 2 16 8 10 Remove the FRAME CLAMP PS NOTE In the following step be careful not to damage the connector connected to the rear frame in the printer by touching it wit...

Page 253: ...S and release the harnesses from the clamp 3 Remove 4 screws silver cup head 8mm securing the LVPS 4 Lift up the LVPS to release the hook on the left and remove the LVPS Figure 3 136 LVPS Removal C H E C K P O I N T n When installing the LVPS route the harnesses properly so they won t be caught in the gears and the plates n When installing the LVPS be sure to join the LVPS to the frame of the prin...

Page 254: ...he HVPS Figure 3 137 HVPS Removal 3 2 16 3 TOP COVER SWITCH Removal PL13 1 3 1 Remove the TOP COVER ASSEMBLY See Section 3 2 4 3 2 Remove the REAR COVER ASSEMBLY See Section 3 2 4 5 3 Disconnect the connector P J195 for the TOP COVER SWITCH 4 Remove the screw black cup head 6mm securing the TOP COVER SWITCH and remove the TOP COVER SWITCH Figure 3 138 TOP COVER SWITCH Removal C H E C K P O I N T W...

Page 255: ...tion 3 2 4 5 2 Disconnect the connector P J82 for the DEVE FAN and release the harness from the FAN DUCT 3 Widen the hooks on the FAN DUCT and remove the DEVE FAN Figure 3 139 DEVE FAN Removal C H E C K P O I N T n When installing the DEVE FAN set the side with the maker label on it facing outside n When installing the DEVE FAN route the harness properly ...

Page 256: ...14 P J15 P J16 P J17 P J18 P J19 P J20 and P J21 for the MCU PWB 6 Remove 4 screws silver cup head 8mm securing the MCU PWB to the printer body and remove the MCU PWB Figure 3 140 MCU PWB Removal C A U T I O N When replacing the MCU PWB perform the following operations referring to Chapter 4 Diagnostics n Read data prior to replacement then write the read data when the replacement is completed n P...

Page 257: ...WB See Section 1 5 Remove the CONT CHASSIS ASSEMBLY See Section 3 2 17 2 6 Disconnect the connector P J105 for the COMMUNICATION ASSEMBLY and release the harness from the clump 7 Remove the screw silver 6mm securing the COMMUNICATION ASSEMBLY and remove the COMMUNICATION ASSEMBLY Figure 3 141 COMMUNICATION ASSEMBLY Removal C H E C K P O I N T When installing the COMMUNICATION ASSEMBLY align the lo...

Page 258: ...IGHT COVER ASSEMBLY See Section 3 2 4 8 6 Remove the CONTROLLER PWB See Section 1 7 Remove the CONT CHASSIS ASSEMBLY See Section 3 2 17 2 NOTE In for following step remember the correct connecting position for each connector 8 Disconnect 4 connectors P J191 P J192 P J193 P J194 for the FRONT COVER SWITCH R 9 Release the hooks securing the FRONT COVER SWITCH R from the frame Then push the FRONT COV...

Page 259: ...11 1 4 Remove the INNER COVER ASSEMBLY See Section 3 2 4 3 5 Disconnect the connector P J197 for the FRONT COVER SWITCH L and release the harness from the hooks 6 Remove the screw black cup head 6mm securing the FRONT COVER SWITCH L Then pull out the harness through the cutout in the frame and remove the FRONT COVER SWITCH L Figure 3 143 FRONT COVER SWITCH L Removal C H E C K P O I N T When instal...

Page 260: ...he MSI ASSEMBLY See Section 3 2 8 1 3 Disconnect the connector P J105 for the ENVIRONMENT SENSOR and release the harness from the clamp NOTE In the following steps never touch the IBT BELT ASSEMBLY 4 Remove the screw silver cup head 8mm securing the ENVIRONMENT SENSOR and remove the ENVIRONMENT SENSOR Figure 3 144 ENVIRONMENT SENSOR Removal C H E C K P O I N T When fastening the screw install the ...

Page 261: ... CONT PLATE ASSEMBLY 6 Remove the CONTROLLER PWB slowly watching the connector for the CONTROLLER PWB and the MCU PWB behind the CONTROLLER PWB to avoid damage Figure 3 145 CONTROLLER PWB Removal C H E C K P O I N T When replacing the CONTROLLER PWB with a new one be sure to install the current memory modules to the new board The modules to be moved are n Standard items Code Dimm socket P SD RAM D...

Page 262: ...N Figure 3 146 CONTROLLER FAN Removal 3 2 17 2 CONT CHASSIS ASSEMBLY Removal PL 14 1 1 1 Remove the TOP COVER ASSEMBLY See Section 3 2 4 3 2 Remove the RIGHT COVER ASSEMBLY See Section 3 2 4 8 3 Remove the CONTROLLER PWB See Section 1 4 Remove the CONTROLLER FAN See Section 3 2 17 1 5 Remove 9 screws silver cup head 8mm securing the CONT CHASSIS ASSEMBLY and remove the CONT CHASSIS ASSEMBLY Figure...

Page 263: ...head bottom of the screw and the top surface of the metal above the NIP SPRING is 13 1mm Figure 3 148 MAIN FUSER ASSEMBLY Adjustment 1 3 5 Install the MAIN FUSER ASSEMBLY and the OIL ROLL ASSEMBLY and close the FUSER ASSEMBLY 6 Print a solid black belt approximately 80mm 289mm in a A 4 paper orientation SEF Use the TOOL FUSER FUSE_TST TRN file in the SELF TRAINING KIT CD ROM 7 Take out the FUSER A...

Page 264: ... 2 points adjustment is correctly done The width of each end is 4 8 mm 0 2mm The difference in the width between 2 ends is 0 2 mm or less MAIN FUSER ASSEMBLY Adjustment 3 3 11 If the result is not satisfactory return to the step 4 and turn the NIP A in the direction shown below according to the result The width is too narrow Turn the screw clockwise The width is too wide Turn the screw countercloc...

Page 265: ...eign object gets inside the printer it may damage the drum 1 Remove the TOP COVER ASSEMBLY See Section 3 2 4 3 NOTE In the following step lift up the Developer Assembly so you can easily insert the rib on the Deve Spacer to space between the stud in the Developer Assembly and Housing 2 Rotate the corresponding Developer Assembly and stop it just before the Toner Cartridge installation position and...

Page 266: ...ollowing step be sure to make a mark on the tracking roll Based on the mark you will see how much the tracking roll moves 5 Make a mark on the tracking roll NOTE Action in the next step is to prevent the tracking roll from touching the earth plate Neglecting this operation will cause the earth plate to interfere with tracking roll s movement 6 Note the magnet Roll in the Developer Assembly and the...

Page 267: ... not in contact you need to use a smaller Deve Spacer n Be sure to set the lever in the ROTARY LATCH ASSY to the top position to keep the tracking roll away from the lever If they are left in contact the tracking roll shifts together with the lever and you will fail to measure a correct move amount n If the Drum Flange black and tracking roll come in contact the tracking roll will move along with ...

Page 268: ...om the results and select it as the value The next action to be taken varies depending on the value as described below n If the value fits in the range from 3 mm to 5 mm most suitable value it means the currently used Deve Spacer is correct n If the value is larger than 5 mm replace the current Deve Spacer with Deve Spacer 1 2 and perform the same operation from step 6 to step 9 Then select the si...

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

Page 270: ...ving commands statuses 10 Automatically executing a command 12 Service tab 13 Displaying the log 16 Life Counter Read Write 17 Read 17 Write 18 Executing Diagnostics 19 Diagnostic execution steps 19 Diagnostics functions 19 Test Print 20 Digital Input Test 21l Digital Input Test Device codes 22 Digital Output Test 26 Digital Output Test Device codes 27 Analog Input Test 31 Analog Input Test Device...

Page 271: ...ort connector to connect the pins If the MCU PWU has DIP switches turn on the switches NOTE Do not touch the live components or driving units when doing the following steps 5 Set the paper in the cassette Turn on the power 6 After the printer enters the READY mode start the test print The printer outputs test patterns continuously 7 To stop printing disconnect the short connector that connects the...

Page 272: ...M the images are printed without top right and left margins NOTE The straight lines in the paper transport direction jitter because MCU PWB circuit clocks are used Do not use the straight lines to evaluate print quality Straight lines with 1 dot width in the laser beam scanning direction are printed every 128 dots The line at the last part of each color may not have the 128 dot interval Straight l...

Page 273: ...ntenance tool The following figure shows the system configuration to perform the diagnostics You can run the diagnostic commander application software on a personal computer and control the Diagnostic PWB to send a command to the MCU PWB NOTE The Diagnostic PWB RS 232C cable personal computer and Diagnostic Commander are collectively called the diagnostic tool maintenance tool Diagnostic tool prov...

Page 274: ...ed on the Diagnostic PWB Connector to the MCU PWB RS 232C cable connector D sub 25 pin female D sub 9 pin female DIP Switches 6 LEDs 3 DIP Switch functions LED functions The LEDs indicate the following signal Table 4 2 DIP SWITCH Function DIP Switch Default Description 1 ON CRDY signal Do not change 2 ON RS 232C cable type ON Straight cable OFF Cross cable 3 OFF RS 232C cable type ON Cross cable O...

Page 275: ... the commands and statuses are defined as follows These definitions are used throughout this section Command Printer Controller diagnostic tool MCU PWB Status MCU PWB Printer Controller diagnostic tool 4 2 2 2 Data Format The data format is defined as follows 1st byte Command status code 2nd byte and the following bytes Parameter code s The parameter code bytes are variable Some commands statuses ...

Page 276: ...mputer Use a personal computer that can run the Diagnostic Commander and set the communication port RS 232C 1 Personal Computer Specifications NOTE The IBM Think Pad 535 has been verified for running the Diagnostic Commander Any IBM PC compatible machine should be able to run the Diagnostic Commander though it does not fully guarantee its operation 2 Communication Port Table 4 4 Personal Computer ...

Page 277: ... CD select TOOL DIAG Disk3 XXXX DAT Then copy the selected XXXX DAT file to the DAT folder under the folder in which you installed Diagnostic Commander 4 2 3 3 Uninstalling the Diagnostic Commander The following describes how to uninstall the Diagnostic Commander in the computer 1 Start Windows 95 Select Settings from the Start menu Select Control Panel in Settings 2 Double click the Add Remove Pr...

Page 278: ...uch the Chassis Assembly If needed insert an insulator such as paper folded into fourths between the PWB and the sheet metal 3 Connect the Diagnostic PWB to the MCU PWB interface connector P11 Make sure that the Diagnostic PWB LEDs are visible from the outside 4 Connect the RS 232C cable between the Diagnostic PWB and the personal computer NOTE The RS 232C cable must be the correct cable for the D...

Page 279: ...e Diagnostic Commander click the Close button 4 2 4 2 Setting Up the Communication Establish communication between the computer and the Diagnostic Commander as follows 1 Select Manual or Auto depending on the menu you want to select 2 Click the Connect button to set up and connect the communication port 3 Click the Sync button to establish communication NOTE Click the Service button to establish t...

Page 280: ...ears 2 Establish the communication See Section 4 2 4 2 Setting up the Communication 3 Click the Class box Select the category that has the command you want to send There are four categories described in Section 4 2 2 3 Command Status categories 4 Select the command code that you want to send from the command code list 5 The selected command code is displayed in the Command box A single click only ...

Page 281: ...mand has its corresponding status the status is displayed in the Status box in HEX NOTE When you want to go to either the Auto or Service menu first disconnect the connection by clicking on the Disconnect button then go to another menu Inputting a command directly in the Command box You can input a command into the Command box as follows 1 Click the Manual tab The Manual screen appears 2 Establish...

Page 282: ...t button to automatically execute commands in the order they are listed in the file NOTE To cancel the execution of the file click the Stop button NOTE When you want to go to the Auto or Service menu first disconnect the connection by clicking the Disconnect button then go to another menu Creating an automatic command execution file NOTE Use an editor e g WordPad etc to create a file As shown in t...

Page 283: ... MCU PWB you need to run the NVM Write If you do not run NVM Write the specification settings differ and the printer may not function properly 1 Click the NVM Write button 2 The specification data file selection screen appears 3 From the list select an appropriate data file XXXX DAT that has the correct specifications NOTE XXXX DAT files must be located in Renoir Service Commander2 01 dat folder o...

Page 284: ...sure that the communication has been established If you run Master Read when the communication has not been established the Diagnostic Commander may hang up 1 Click the Master Read button 2 The data read from the Master is displayed as shown below Table 4 7 Contents of the Master Serial No Header top 4 digit APC0 BBD0 BBE0 BBF0 BBG0 OEM Code 03 03 03 03 03 Part No 8382 9140 9141 9142 9143 Serial N...

Page 285: ...lave data NOTE Before you run Slave Initialize make sure that the communication has been established If you run Slave Initialize when the communication has not been established the Diagnostic Commander may hang up 1 Click the Slave Initialize button 2 The Slave is initialized NOTE After you initialize the Slave turning the power ON OFF automatically writes the data in the Slave NOTE There may be m...

Page 286: ... shown in the Status box NOTE The following shows the voluntary statuses that are not displayed in the Status box IGNORED40 XX CMD XX REASON PPOUT20 XX DEST XX DOPT XX SHEET PCH21 XX CASSETTE XX SIZE XX MEDIA PFA30 XX AMODE XX SHEET1 XX SHEET2 ENGERR31 ERRRV32 ENGWRN33 Operating the Log Window Move the cursor inside the Log Window Click the right mouse button The Log Clear Log Save and Log Window ...

Page 287: ...ction 4 2 6 Executing Diagnostics If you run the EEPROM Read Write function after replacing the MCU PWB you do not need to read write the life counter data using the Parameter Control function NOTE You can use the Parameter Control commands and statuses to read write the setting values in the registrations 4 2 5 1 Read NOTE The statuses for the above commands have 4 bytes as shown below Example Co...

Page 288: ...r has the CRUM function Clear the counter if you replace the Drum Cartridge with a new one in the printer without the CRUM function Toner Cartridge Y 80 01 V1 V2 V3 V4 Toner Cartridge M 80 02 V1 V2 V3 V4 Toner Cartridge C 80 03 V1 V2 V3 V4 Toner Cartridge Bk 80 04 V1 V2 V3 V4 Main Fuser Assembly 1 80 06 V1 V2 V3 V4 Clear the counter if you replace the Main Fuser Assembly with a new one Main Fuser ...

Page 289: ...and 76h to exit the DIAG TEST mode The DIAGOFF command is a Printing Status Control command class command 4 2 6 2 Diagnostics functions There are a total of 8 diagnostic functions 9 if you include the diagnostics stop function Table 4 11 Diagnostics Functions Parameter HEX Diagnostic function Description 00 Test Print Sets the parameters for the built in test print 01 Digital Input Test Input test...

Page 290: ... in the Image Area Selection for the MCU PWB EEPROM NVM there will not be right left margins in the test print pattern Table 4 12 Test Print Parameters DIAGON command 75 DIAGOFF command 76 DIAGSTART command Test Print 90 00 XX XX DIAGSTOP command Test Print Unnecessary Parameter Function Data Hex 1 Diagnostic type 00 Test Print 2 Image 01 Grids 05 Patches 3 Color Command 01 Black only 0F All color...

Page 291: ...pattern Figure 4 4 Patch Test Print Pattern 4 2 6 4 Digital Input Test You can detect the High Low level in the signals output from a switch or sensor that has a digital signal NOTE The status parameter 3 data is 1 byte data Hex in the device code 32 3F 43 44 and 45 Table 4 13 Digital Input Test Parameter DIAGON command 75 DIAGOFF command 76 DIAGSTART command Digital Input Test 90 01 XX XX DIAGSTO...

Page 292: ..._TOP_SNR 09 TOP EXIT SENSOR Check the sensor by blocking opening the light path to the sensor using the Top Exit Sensor Actuator TOP EXIT PAPER SENSE signal High Table 4 15 Digital Input Test Device Codes 2 7 Digital Input Test DIAGSTART 90 01 XX DIAGSTOP Unnecessary Name Code Hex Function item Check Status data High PH_MOT_FAIL 0A P H Motor Assembly Remove the P H Motor Assembly connector P J49 a...

Page 293: ...r by blocking opening the light path to the sensor using a sheet of paper MIS EDGE PAPER SENSE signal High REGIST_SNR 1F Registration Sensor Check the sensor by blocking opening the light path to the sensor using a sheet of paper REGISTRATION PAPER SENSE signal High Table 4 17 Digital Input Test Device Codes 4 7 Digital Input Test DIAGSTART 90 01 XX DIAGSTOP Unnecessary Name Code Hex Function item...

Page 294: ...witch Check the switch by opening closing the Feeder Chute Assembly FEEDER CHUTE SWITCH ON signal High Table 4 19 Digital Input Test Device Codes 6 7 Digital Input Test DIAGSTART 90 01 XX DIAGSTOP Unnecessary Name Code Hex Function item Check Status data High OPT_SENS_ EMPTY_3 3D Tray No Paper Sensor Cassette 3 Check the sensor by blocking opening the light path to the sensor using the Tray N P Ac...

Page 295: ..._SIZE2 43 Size Switch Assembly Cassette 2 Check the assemblies by turning ON OFF the 4 Paper Size Switches Cassette2 Cassette 3 Cassette 4 and check the data in this diagnostic function See Section 2 7 1 Paper Size Control 2 SIZE SWITCH signal 1 byte data OPT_SIZE3 44 Size Switch Assembly Cassette 3 3 SIZE SWITCH signal 1 byte data OPT_SIZE4 45 Size Switch Assembly Cassette 4 4 SIZE SWITCH signal ...

Page 296: ...T Belt Assembly from being damaged NOTE Do not turn on the 1st BTR with the Process Motor Assembly turned off to prevent the IBT Belt Assembly from being damaged NOTE When the Process Motor Assembly and the P H Motor Assembly are turned off do not turned on the 2nd BTR to prevent the IBT Belt Assembly from being damaged NOTE Do not turn on the P H Motor Assembly without the Drum Cartridge or the W...

Page 297: ...to half Sets the PROCESS MOTOR HALF SPEED signal to Low C A U T I O N Table 4 23 Device Codes for Digital Output Test 2 8 Digital Output Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Name Code Hex Function item Check Function MAIN_MOT 10 Process Motor Assembly Warning Caution Check visually and auditorially that the Process Motor Assembly is functioning Sets the PROCESS MOTOR ON signal to Low ROTARY_M...

Page 298: ...e turned on Sets the HEATER ON signal to Low ROS_MOT 20 ROS Assembly Check the Scanner Motor ON signal The Scanner Motor in the ROS is rotating Sets the SCANNER MOTOR ON signal to Low C A U T I O N Table 4 25 Device Codes for Digital Output Test 4 8 Digital Output Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Name Code Hex Function item Check Function MSI_CL 21 MSI Clutch By corresponding the clicking...

Page 299: ...o Low C A U T I O N Table 4 27 Device Codes for Digital Output Test 6 8 Digital Output Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Name Code Hex Function item Check Function REAR_FAN_SPEED 31 Developer Fan Warning Check visually or auditorially that the Developer Fan rotation has been reduced By executing this test with Code 26 the Developer Fan rotation speed is reduced Sets the DEVE FAN HALF SPEED...

Page 300: ...ot allowed OPT_ROLL_FRONT _CL 52 Not allowed OPT_ROLL_BACK_ CL 53 Not allowed OPT REVERSE_CL 54 Not allowed OPT_FORWARD_CL 55 Not allowed OPT_DUP_PATH_S OL_PUSH 56 Not allowed OPT_DUP_PATH_S OL_PULL 57 Not allowed C A U T I O N Table 4 29 Device Codes for Digital Output Test 8 8 Digital Output Test DIAGSTART 90 02 XX DIAGSTOP 91 02 XX Name Code Hex Function item Check Function OPT_FEEDER_MOT 58 Fe...

Page 301: ...tructed to do so Table 4 30 Analog Input Test Specifications 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 Diagnostic type 03 Analog Input Test 2 Code_AI Device code See 4 2 6 9 3 Data Status only Data 4 Data Status only Data With status 90 03 XX XX C A U T I O N 90 03 ADC_SNR 01 DIAGST...

Page 302: ...k the data in this diagnostic function ADC SIG signal 0000 0400h 0 4 1 V PAP_SIZE_SW_1 02 Size Switch Assembly Cassette 1 Turn ON OFF the Paper Size Switches 4 in the Size Switch Assembly Cassette 1 Check the data in this diagnostic function 1 SIZE SWITCH signal See Section 2 7 1 Paper Size Control HR_THERMISTER 03 Temperature Sensor Assembly Check the data TEMP signal 0000 00FFh 0 4 1 V C A U T I...

Page 303: ...turn on the BCR Erase Lamp Assembly and the LD in the ROS Assembly with the Process Motor Assembly turned OFF to prevent fatigue in the Drum Cartridge While the Process Motor Assembly P H Motor Assembly and Developer Clutch Assembly are on and the Developer Assembly is in the development position do not turn on the DB output AC component or DB output AC component and DB output DC component at the ...

Page 304: ...V DEVE_DC_OUT 03 HVPS Warning Caution Check the HVPS by reading the DB DC Controller signal Outputs the DB DC CONT signal that has the value based on the data 00 FFh 0 4 1 V LD_POWER 04 ROS Assembly Warning Caution Check the ROS Assembly by reading the VREF signal Outputs the VREF signal that has the value based on the data 00 FFh 0 4 1 V C A U T I O N Table 4 35 Analog Output Test Device codes 2 ...

Page 305: ...M Read 90 05 XX XX DIAGSTOP command EEPROM Read Unnecessary Parameter Function Data Hex 1 Diagnostic type 05 EEPROM Read 2 Code_EP NVM number See 4 2 6 15 NVM List 3 Code_EP NVM number See 4 2 6 15 NVM List 4 Data Status only Data 5 Data Status only Data 6 Data Status only Data 7 Data Status only Data With status 90 05 XX XX XX XX XX XX 90 05 CC Data 100000 186A0h 01 DIAGSTART command EEPROM read ...

Page 306: ...end of the Oil Roll Assembly 452 01C4h Accumulated counts to detect the life end of the Drum Cartridge NOTE Read the data only if the printer has the CRUM function 460 01CCh Accumulated counts to detect the life end of the 2nd BTR Assembly 474 01DAh Counter A to detect a full Waste Toner Box NOTE You can read some of the data items above in 2 5 Life Counters Read Write If you read write data when ...

Page 307: ...is manual If you change any of the other NVH numbers the system setting may be corrupted Table 4 37 EEPROM Write Parameters DIAGON command 75 DIAGOFF command 76 DIAGSTART command EEPROM Write 90 06 XX XX XX XX XX XX DIAGSTOP command EEPROM Write Unnecessary Parameter Function Data Hex 1 Diagnostic type 06 EEPROM Write 2 Code_EP NVM No See 4 2 6 15 NVM List 3 Code_EP NVM No See 4 2 6 15 NVM List 4 ...

Page 308: ...elt Cleaner Assembly or the Drum Cartridge for the printer without the CRUM function write 0 in the following NVM number data Setting a 0 in the life counter is described as a Counter Clear in this manual If you replaced the Drum Cartridge without CRUM with a new one 452 01C4h Do not write data for the printer with the CRUM function If you replaced the Main Fuser Assembly with a new one 404 0194h ...

Page 309: ...d the NVM numbers using the EEPROM Read Execute the NVM Write in the Service tab Write the data that has been read using the EEPROM Write Also execute the NVM Write in the Service tab Table 4 38 EEPROM Initialize Parameters DIAGON command 75 DIAGOFF command 76 DIAGSTART command EEPROM Initialize 90 07 DIAGSTOP command EEPROM Initialize Unnecessary Parameter Function Data Hex 1 Diagnostic type 07 E...

Page 310: ...EEPROM Write 90 06 XX XX XX XX XX XX Access Permission Yes No NVM Number Hex Function Range Hex Default Hex Data Unit Read only 0 0000 MCU PWB Version 0F 0F Firmware version x 1 0001 Fuser dummy rotation Belt Cycle 0 4 00 04 1 01 Number of dummy rotations for continuous printing in each color mode plain paper Belt circumfere nce 3 0003 Top registration adjustment 12 28 F4 1C 4 04 6 91msec x 4 0004...

Page 311: ...stment 35 35 DD 23 5 FB 13 82 msec x 16 0010 Cassette 2 Feed Jam C4 40 00 time adjustment 10 10 F6 0A 0 00 50 msec Table 4 41 NVM List 3 8 EEPROM Read 90 05 XX XX EEPROM Write 90 06 XX XX XX XX XX XX Access Permission Yes No NVM Number Hex Function Range Hex Default Hex Data Unit x 17 0011 Jam detection Enable Disable 0 1 2 3 0 00 0 Jam and size mismatch detection 1 No Jam detection 2 No size mism...

Page 312: ...ounter C 1 sec x 356 0164 Printer life counter 2 0 0000 Overall image accumulated counts 1 image Table 4 43 NVM List 5 8 EEPROM Read 90 05 XX XX EEPROM Write 90 06 XX XX XX XX XX XX Access Permission Yes No NVM Number Hex Function Range Hex Default Hex Data Unit 378 017A Toner Cartridge Bk life counter 0 0000 Black dispense accumulated time 100 msec 380 017C Toner Cartridge Y life counter 0 0000 Y...

Page 313: ... 424 01A8 Belt Cleaner Assembly Life counter 0 000000 00 Accumulated counts x 428 01AC Drum Cartridge Life end warning 90000 00015F 90 Counts Table 4 45 NVM List 7 8 EEPROM Read 90 05 XX XX EEPROM Write 90 06 XX XX XX XX XX XX Access Permission Yes No NVM Number Hex Function Range Hex Default Hex Data Unit x 432 01B0 Drum Cartridge Life over value 110000 0001AD B0 Counts x 436 01B4 Belt Counter As...

Page 314: ...ime 3 100 msec 474 01DA Waste Toner Box Life counter 1 0 0000 Counter A 448 01C0 Oil Roll Assembly Life counter 1 0 00000000 Accumulated PV counts CRUM x 452 01C4 Drum Cartridge Life counter 0 00000000 No CRUM Accumulated counts x 456 01C8 Belt Cleaner Assembly Life over value 180000 0002BF20 Counts 460 01CC 2nd BTR Assembly Life counter 0 00000000 Counts x 464 01D0 2nd BTR Life end warning 100000...

Page 315: ...mand with is a command without a responding status Table 4 48 Status List Name Status code Hex Parameter code Description PPOUT 20 1 DEST 2 DOPT 3 SHEET Paper ejection data PCH 21 1 TRAY 2 SIZE 3 MEDIA Selected paper feeder Cassette Paper size Paper type TRYSELR B0 1 TRAY Response Currently selected paper feeder Cassette MEDSELR B1 1 MEDIA Response Currently selected paper type TRYSIZSER B2 1 TRAY...

Page 316: ...ejection 02 Cassette 2 x Post card SEF x OHP 0 MSI only 03 Cassette 3 x COM 10 LEF x Label 1 x 04 MSI O DL LEF x Cover x 05 Cassette 4 x STATEMENT LEF x Label 2 x 06 A5 LEF x Thick paper Postcard Envelope x 07 C5 SEF x 08 B5 LEF O 09 EXECUTIVE LEF O 0A 8 x 10 LEF x 0B A4 LEF O 0C LETTER LEF O 0D LETTER SEF O 0E Tab Letter LEF x 0F A4 SEF O No paper O 10 Tab A4 LEF x 11 Sp Folio SEF x 12 Folio SEF ...

Page 317: ...equests to exit from the DIAG TEST mode STOP 77 None Requests to stop the printing operation ABORT 78 None Requests to ejects the fed paper and stop the operation SSENG C0 None Requests the error data on the printer status SSCONS C1 None Requests the error data on the consumables SSTRAY C2 None Requests the error data on the paper feeder SSCRUM C3 None Requests the error data on the Drum Cartridge...

Page 318: ...r status SSCONS C1 1 STSCONS Response Error data on the consumables SSTRAY C2 1 STSTRAY Response Error data on the paper Cassette SSCRUM C3 1 STSCRUM Response Error data on the Drum Cartridge CRUM function SSJAM C4 1 STSJAM 2 STSPAPER Response Error data on paper jam SSHW C5 1 STSHW1 2 STSHW2 3 STSHW3 4 STSHW4 Response Error data on the hardware SSLIFE C6 1 STSLIFE Response Error data on life SSOP...

Page 319: ...e 73 Data Hex SLEEPMODE 00 LIGHT SLEEP mode 01 DEEP SLEEP mode Table 4 54 PFC command PFA sTatus Parameters PFC command code 70 PFA status code 30 Data Bit PMODE CMODE AMODE Field Logic Field Logic Field Logic 7 Transfer layout mode 0 1UP mode 1 2UP mode Colors 0 None 1 Yellow Transfer Layout 0 1 UP 1 2 UP 6 0 None 1 Magenta 5 0 None 1 Cyan 4 0 None 1 Black 3 Colors 0 None 1 Yellow 2 0 None 1 Mage...

Page 320: ...nt Quality mode Paper jam SSJAM command C4 3 READY mode Hardware error SSHW command C5 2 PRINTING mode Life over SSLIFE command C6 1 ERROR mode Cover open SSOPEN command C7 0 Warning SSWARN command C8 Table 4 56 SSCONS SSTRAY SSCRUM Status Parameters SSCONS status code C1 SSTRAY status code C2 SSCRUM status code C3 Data Bit STSCONS STSTRAY STSCRUM 7 No Yellow toner No paper in Cassette 1 Communica...

Page 321: ...tus Parameters 1 2 SSHW status code C5 Data Bit STSHW1 STSHW2 7 Fuser overheat error 6 Option error Ross Assembly error 5 2nd BTR error Process Motor Assembly error 4 Fuser warm up error Recognition function error 3 Oil Roll Assembly Not installed Paper Cassette 2 is not set 2 Main Fuser Assembly error Paper Cassette 3 is not set 1 Heater error 0 High density error Paper Cassette 1 is not set Tabl...

Page 322: ...pen 3 Belt Cleaner Assembly Life over 2 Main Fuser Assembly Life over 1 Feeder Chute Assembly Open 0 Table 4 61 SSWARN Status Parameters SSWARN status code C8 Data Bit STSWARN1 STSWARN2 STSWARN3 7 Yellow toner Life warning Drum Cartridge Life warning Cassette 1 Remaining paper warning 6 Magenta toner Life warning Cassette 2 Remaining paper warning 5 Cyan toner Life warning Cassette 3 Remaining pap...

Page 323: ... read by the LIFLIMR write the life over value in the LIFCNTSET command C A U T I O N Do not use any other commands except LIFCNTSET 80 CTLSET 85 LIFCNTR D0 LIFLIMR D1 and CTLSETR D7 unless instructed to do so in this manual Before replacing the MCU PWB run the LIFCNTR D0 and CTLSETR D7 Record the data from the commands After installing the new MCU PWB write the data ...

Page 324: ...the life counter LIFLIMR D1 1 LIFE Reads the life over value TIMSETR D2 1 TIM Reads the time out value TIMUNITR D3 1 TIM Reads the time out unit Table 4 63 Command List of the Parameter Control 2 2 Command Command code Hex Parameter code Description TIMMINR D4 1 TIM Reads the minimum time out value TIMMAXR D5 1 TIM Reads the maximum time out value CTLVALR D6 1 CTL Reads the controlled value that c...

Page 325: ...TL 2 V1 3 V2 4 V3 Response Control value CTLACCSR D8 1 CTL 2 ACCESS Response Privilege to access the control value CTLMINR D9 1 CTL 2 V1 3 V2 4 V3 Response Minimum control value CTLMAXR DA 1 CTL 2 V1 3 V2 4 V3 Response Maximum control value STCCNTR DB 1 STC 2 V1 3 V2 4 V3 Response Statistical counter LIFEDEFR DC 1 LIFE 2 V1 3 V2 4 V3 5 V4 Response Default life over value TIMDEFR DD 1 TIM 2 V1 3 V2...

Page 326: ...rs have been defined by bits Table 4 65 UNIT ACCESS Parameter Codes 1 2 TIMUNITR status code D3 Data Hex UNIT Time Unit 00 Milliseconds 01 Seconds 02 Minutes 03 Hours Table 4 66 UNIT ACCESS Parameter Codes 2 2 CTLACCSR status code D8 Data Bit ACCESS Access Allowed 2 Write Set Point Allowed 1 Read Set Point Allowed 0 Read Value Allowed ...

Page 327: ... BTR Assembly M Toner Concentration 0A Belt Cleaner Assembly C Toner Concentration 0B Oil Roll Assembly Accumulated PV count Bk Toner Concentration 0C Main Fuser Assembly Accumulated Image count 11 Top registration adjustment applies to all paper feeders Unit 0 5mm 16 Side registration adjustment Cassette 1 Unit Approx 0 17mm 17 Side registration adjustment Cassette 2 Unit Approx 0 17mm 18 Side re...

Page 328: ... version POLLR E3 None Polling REVR E4 None Reads the printer version Table 4 69 Status List of the Diagnostic Control Status Status code Hex Parameter code Description IGNORED 41 1 CMD 2 REASON Rejects the command Displays the command code corresponding to the CMD DIAGSTART 90 See4 2 6 Executing Diagnostic Function DIAGSTOP 91 See4 2 6 Executing Diagnostic Function DIAGTSR E0 1 DGTST 2 DGST Respo...

Page 329: ...st 04 Analog Output Test 05 EEPROM Read 06 EEPROM Write 07 EEPROM Initialize 0F FF All Tests To Stop all tests Table 4 71 DGST MACREV parameter codes Data Hex DGST Diag State MACREV Machine Revision 06 Pass Finished Successfully 07 Fail Finished with Failure The printer Table 4 72 REASON OPTION parameter codes Data Bit REASON Reason Ignored OPTION Option Status 0 Off 1 Installed 7 6 5 Full paper o...

Page 330: ... bit in the parameter in each status For details on the parameters see Section 4 2 7 Command Status List Section 2 Troubleshooting lists the error status codes that have the same status codes NOTE In Section 2 Troubleshooting a is used in place of a space between bytes Example Example Transfer the previous MCU PWB Engine Status to the new MCU PWB C1 04 Parameter 1 04h Bit 2 ON No Fuser Oil SSCON s...

Page 331: ...and save it in the Auto folder 7 Select and execute the CVTLOGAT EXE file in the Renoir Service Commander 2 01 AUTO folder and in the menu that appears enter the full name of the log file you saved in the previous step Then press the Return key following the menu A message appears confirming that the LOG file has been edited as AT file and saved with the AT extension Press the Return key again to ...

Page 332: ...C H A P T E R 5 TROUBLESHOOTING ...

Page 333: ...P 1 29 ENVIRONMENT SENSOR Related Error 45 FIP 1 30 ROTARY MOTOR ASSY HP Detection Related Error 46 FIP 1 31 WASTE TONER BOX is Out 47 FIP 1 32 MCU PWB MEMORY RAM Error 48 FIP 1 33 TONER CARTRIDGE Y M C K is Out 49 FIP 1 34 PCDC Error 49 FIP 1 35 ADC SENSOR Error 50 FIP 1 36 Periodically Replaced Part End Of Life 51 FIP 1 37 No Power is Applied 52 FIP 1 38 Abnormal Print Motion 53 FIP 1 39 CONTROL...

Page 334: ... 29 TEMP SENSOR ASSEMBLY is Defective 95 FIP 2 30 OIL CAM SOLENOID is Defective 96 FIP 2 31 CLEANER CAM SOLENOID is Defective 97 FIP 2 32 TOP EXIT SENSOR is Defective 98 FIP 2 33 PROCESS MOTOR ASSY is Defective 99 FIP 2 34 P H MOTOR ASSY is Defective 100 FIP 2 35 ROTARY MOTOR ASSY is Defective 101 FIP 2 36 DISPENSE MOTOR ASSY is Defective 102 FIP 2 37 DEVE CLUTCH ASSY is Defective 102 FIP 2 38 HVP...

Page 335: ... i n g t h e t r o u b l e b a s e d o n t h e L C D m e s s a g e s i n S e c t i o n 5 1 2 H a s t h e t r o u b l e r e c u r r e d Y e s N o T o u b l e s h o o t i n g 1 G o t o S e c t i o n 5 2 F I P 1 2 G o t o S e c t i o n 5 3 F I P 2 3 G o t o S e c t i o n 5 4 P r i n t Q u a l i t y T r o u b l e s h o o t i n g 4 F u r t h e r t r o u b l e s h o o t i n g r e f e r r i n g t o C h a...

Page 336: ...rrun Off Blinking Error Table 5 12 Ready On Off Status Table 5 5 Regulating Printer On Off Status Table 5 4 Replace Photocondctr Off Off Error Table 5 9 Replace Waste T Box Off Off Error Table 5 10 Replace Oil Roll Off Off Error Table 5 10 Reset Off Off Status Table 5 4 Reset All Off Off Status Table 5 4 Reset to Save Off Off Status Table 5 4 Self Test Blink Off Status Table 5 4 Service Req effff ...

Page 337: ...he ongoing job is completed 2 Reset the printer or perform a warm boot for a instant change of the setting but be aware that this erases any print data in the printer s memory 5 Warming Up A Ready message that indicates the printer is warming up 6 Regulating Printer A Ready message that indicates the printer engine is adjusting Table 5 5 Status Message List 2 2 Ref Message Explanation Notes 7 Stan...

Page 338: ...jam and then close the unit Closing the unit clears the error The printer resumes printing from the data that was affected by the jam Table 5 7 Error Message List 2 9 o Feed Jam LED status On Line off Continue off Explanation A paper jam occurred near the paper entry slot If a simultaneous jam occurs somewhere else along the paper feed path an error message for the paper jam with the highest prior...

Page 339: ... Solution Close the cover to clear the error o Fuser Unit Open LED status On Line off Continue off Explanation The fuser unit is open Solution Close the unit to clear the error Table 5 9 Error Message List 4 9 o Paper Unit Open LED status On Line off Continue off Explanation The paper feed unit is open Solution Close the unit to clear the error o Feeder Cover Open LED status On Line off Continue o...

Page 340: ... source Paper is loaded from the available paper source with the highest priority If neither of the paper sources has paper in it the same error occurs This circumstance does not generate Paper Out error Other actions affect same as described in Solution 1 3 Perform Reset or Warm boot Table 5 11 Error Message List 6 9 o Paper Out s s s s s t t t t LED status On Line off Continue off Explanation 1 ...

Page 341: ...ering the font macro pattern or so the printer ignores the bad command and continues to print lReset the printer or perform a warm boot 2 If the Auto Cont setting on the printer s Device menu is enabled the printer will automatically override the paper error and undergoes the same process depending on the cause as described above Table 5 13 Error Message List 8 9 o Illegal Aux I F Card LED status ...

Page 342: ...e write error caused by inappropriate attempt to write to the system Solution 1 Turn off the printer 2 Perform a Reset All operation 3 If error recurs service the printer o Write Error Data RAM LED status On Line off Continue off Explanation No data area within RAM allocated as code area or write operation failed to terminate normally The explanation in the manual shall identify this as a system d...

Page 343: ...ton to clear the error and try to print the remainder of the print job 2 Perform a Reset operation or warm boot Note Installation of additional memory optional SIMM is recommended Table 5 16 Warning Message List 2 4 o Image Optimum LED Message No effect on LED state Explanation There was not enough memory to process the print data and the printer optimized the data reduced the resolution Solution ...

Page 344: ...ng message 1 Press the Continue button 2 Perform a Reset operation 3 Replace the Waste Toner Collector with a new one Table 5 18 Warning Message List 4 4 o Oil Roll Near Empty LED Message No effect on LED state Explanation The fuser oil is running low The engine s detection system calculates the remaining level of fuser oil and generates this message when it determines that the fuser oil will run ...

Page 345: ...nance Call Error Message NOTE A Warning is active I Warning is inactive Table 5 19 Maintenance Call Error Message List Warning content Code hhhh Fuser Unit near end of life IBT Cleaner near end of life 2nd BTR near end of life 0001 A I I 0002 I A I 0003 A A I 0004 I I A 0005 A I A 0006 I A A 0007 A A A ...

Page 346: ... satisfy the specification requirements and are compatible with the printer s controller Make sure all boards are connected properly 3 Turn the printer back on 4 If the same error appears write down the code and service the printer accordingly Table 5 21 Engine Related Service Call Error Error Type e Error Code ffff Explanation Refer to E 0003 Fuser Unit error end of life FIP 1 36 E 0008 Bad Engin...

Page 347: ...CPU error FPU exception FIP 1 47 C 0098 CPU error Watch exception FIP 1 47 C 0128 0254 CPU error Undefined trap FIP 1 47 C 0255 CPU error NMI exception FIP 1 47 C 0256 CPU error Division by zero FIP 1 47 C 0257 CPU error Operation overflow FIP 1 47 C 0258 CPU error break FIP 1 47 C 0800 IPL error Controller problem FIP 1 42 C 1002 Error in standard RAM Capacity below standard or other FIP 1 41 C 1...

Page 348: ...FIPs C H E C K P O I N T Preliminary inspection In each FIP you are required to perform the Preliminary inspection prior to any other actions The Preliminary inspection involves the following n Check for any part that does not meet the specifications n Check if any part has been installed improperly n Check for part that is damaged deformed smeared or lodged with foreign matter ...

Page 349: ...ce Code 25 Go to Step 5 Go to FIP 2 36 DISPENSE MOTOR ASSY is Defective 5 Check DEVE CONTACT ASSY l Is the contact area deformed or lodged with any foreign matter Replace the DEVE CONTACT ASSY Go to FIP 2 38 HVPS is Defective If the problem still occurs go to FIP 2 19 ROS ASSY is Defective 6 Check Photo sensor surface of the ADC SENSOR l Is the sensor surface smeared or lodged with any foreign mat...

Page 350: ...s the transparency are in the upper part of the WASTE TONER BOX smeared or lodged with any foreign matter l Is the sensor flag part inside the box floating Replace or clean the WASTE TONER BOX With the diagnostic tool go to step 3 Without the diagnostic tool go to FIP 2 17 WASTE TONER SENSOR is Defective 3 WASTE TONER SENSOR l Is the WASTE TONER SENSOR functioning properly Check it by using the di...

Page 351: ...w Between the terminal in the CRU SWITCH ASSY and P77 Go to Step 4 Replace the CRU SWITCH ASSY 4 Check OIL CAM ASSY l Is the shaft in the OIL CAM ASSY bent l Is the pin in the OIL CAM ASSY at an incorrect position Replace the OIL CAM ASSY Go to Step 5 5 Check FUSER HARNESS ASSY electrical continuity l Does the FUSER HARNESS ASSY have proper continuity at the point below J71 J77 Go to Step 6 Replac...

Page 352: ...eplace the defective part such as the paper cassette 4 Check TRAY N P ACTUATOR NOTE Be sure to remove the MAIN P H ASSY and insert the Cassette 1 properly before the operation l Is the actuator properly functioning depending on the conditions below Paper is set The TRAY N P ACTUATOR is away from the detection area of the TRAY NO PAPER SENSOR No paper is set The TRAY N P ACTUATOR is blocking the de...

Page 353: ...maller l Are the outputs still abnormal Go to Step 4 Go to Step 6 4 Check MSI N P ACTUATOR l Is the actuator functioning properly depending on the conditions below Paper is set The MSI N P ACTUATOR is away from the detection area of the MSI SHORT N P SENSOR No paper is set The MSI N P ACTUATOR is blocking the detection area of the MSI SHORT N P SENSOR l Does the actuator move smoothly With the dia...

Page 354: ...G N P SENSOR is Defective Replace the defective part 7 Check MSI LONG N P SENSOR l Is the MSI LONG N P SENSOR properly functioning Check it by using the diagnostic tool Diag Tool Digital Input Test Device Code 18 Replace the MCU PWB Go to FIP 2 8 MSI LONG N P SENSOR is Defective Check point Remedy Yes No 1 Perform the preliminary inspection Parts to inspect DRUM CARTRIDGE CRUM CONNECTOR ASSY MCU P...

Page 355: ...ng the paper path Clean or replace the defective part With the diagnostic tool go to step 5 Without the diagnostic tool go to FIP 2 32 TOP EXIT SENSOR is Defective 5 Check TOP EXIT SENSOR l Is the TOP EXIT SENSOR functioning properly Check it by using the diagnostic tool Diag Tool Digital Input Test Device Code 09 Go to Step 6 Go to FIP 2 32 TOP EXIT SENSOR is Defective 6 Check EXIT 2 ROLL ASSY l ...

Page 356: ...o FIP 2 14 REGI SENSOR is Defective Clean or replace the defective part 5 Check REGI SENSOR l Is the REGI SENSOR properly functioning Check it by using the diagnostic tool Diag Tool Digital Input Test Device Code 1F Go to Step 6 Go to FIP 2 14 REGI SENSOR is Defective 6 Check MAIN P H ASSY for drive transmission l Does the MAIN P H ASSY transmit drive properly l Is there any damaged gear or worn o...

Page 357: ...d or easy to curl Change the paper Go to Step 4 4 Check FUSER EXIT ACTUATOR l Is the FUSER EXIT ACTUATOR properly functioning depending on the conditions below Paper is set The actuator is away from the detection area of the FUSER EXIT SENSOR No paper is set The MSI N P ACTUATOR is blocking the detection area of the FUSER EXIT SENSOR l Does the actuator move smoothly With the diagnostic tool go to...

Page 358: ...ove smoothly With the diagnostic tool go to step 7 Without the diagnostic tool go to FIP 2 27 FUSER IN SENSOR is Defective Replace the defective part 7 Check FUSER IN SENSOR l Is the FUSER IN SENSOR properly functioning Check it by using the diagnostic tool Diag Tool Digital Input Test Device Code 28 Go to Step 8 Go to FIP 2 27 FUSER IN SENSOR is Defective 8 Check FUSER DRIVE ASSY l Is the FUSER D...

Page 359: ...echanism l Is the combination of the On Off setting of the paper size switches on the SIZE SWITCH ASSY corresponding to the size of the paper in the paper cassette in use Check that the TRAY SIZE ACTUATOR move in accordance with the END GUIDE Check that the TRAY SIZE ACTUATOR properly pushes the Paper Size Switches NOTE Insert a sheet of paper from the rear side onto the SIZE SWITCH ASSY then set ...

Page 360: ...SOR REAR OHP SENSOR l Is the surface of the FRONT OHP SENSOR or REAR OHP SENSOR smeared or lodged with any foreign matter Remove the smear foreign matter Go to Step 5 5 Check Paper path l Is the paper path smeared or lodged with any foreign matter Remove the smear foreign matter With the diagnostic tool go to step 6 Without the diagnostic tool go to FIP 2 12 FRONT OHP SENSOR is Defective If the pr...

Page 361: ...Digital Input Test Device Code 09 Replace the MCU PWB Go to FIP 2 32 TOP EXIT SENSOR is Defective Step Check point Remedy Yes No 1 Perform the preliminary inspection Parts to inspect FUSER EXIT ACTUATOR FUSER EXIT SENSOR FUSER IN ACTUATOR FUSER IN SENSOR FUSER DRIVE ASSY MCU PWB Replace reinstall the defective part s Go to Step 2 2 Check REGI SENSOR for remainder l Is there any paper paper debris ...

Page 362: ...l go to step 4 Without the diagnostic tool go to FIP 2 28 FUSER EXIT SENSOR is Defective If the problem still occurs go to FIP 2 27 FUSER IN SENSOR is Defective Replace the defective part 4 Check FUSER EXIT SENSOR l Is the FUSER EXIT SENSOR functioning properly Check it by using the diagnostic tool Diag Tool Digital Input Test Device Code 25 Go to Step 5 Go to FIP 2 28 FUSER EXIT SENSOR is Defecti...

Page 363: ... to step 9 Without the diagnostic tool go to FIP 2 26 BTR CAM SOLENOID is Defective 4 Check 2ND BTR CAM SOLENOID installation l Is the BTR CAM SOLENOID properly installed Go to Step 5 Reinstall the BTR CAM SOLENOID 5 Check 2ND BTR CAM ASSY Is the BTR CAM ASSY bent or deformed Replace the 2ND BTR CAM ASSY Go to Step 6 6 Check 2ND BTR ASSY installation l Is the 2ND BTR ASSY properly installed Go to ...

Page 364: ...EMBLY is Defective Go to Step 4 4 Check H R HEATER P R HEATER NOTE Make sure the FUSER ASSY is cool before starting this operation l Do the both H R HEATER and P R HEATER come on when the printer is turned on Go to Step 5 Replace the H R HEATER P R HEATER 5 Does the problem occur while the FUSER is warming up Go to FIP 2 29 TEMP SENSOR ASSEMBLY is Defective Go to Step 6 6 Check MAIN HARNESS ASSY l...

Page 365: ...Y Go to Step 4 4 Check Conductive part of the CRU SWITCH ASSY l Are the conductive terminals in the CRU SWITCH ASSY smeared dusty or deformed Replace Clean the CRU SWITCH ASSY Go to Step 5 5 Check OIL ROLL ASSY electrical continuity l Is continuity status correct depending on the conditions below Pins J19 17PIN J19 18PIN OIL ROLL ASSY is installed Detected OIL ROLL ASSY is not installed Cut off Re...

Page 366: ...R ASSY detection circuit properly functioning Check it by using the diagnostic tool Diag Tool Digital Input Test Device Code 24 Replace the MCU PWB Go to Step 5 5 Check Power supply to the FUSER ASSY detection circuit l Is the voltage level correct at the pins below P19 16PIN P19 15PIN 5VDC Go to Step 6 Replace the MCU PWB 6 Check FUSER ASSY detection signal l Is the voltage level correct dependin...

Page 367: ...Check CRUM CONNECTOR ASSY electrical continuity l Does the CRUM CONNECTOR ASSY have proper continuity at the pins below J23 P22 Go to Step 5 Replace the CRUM CONNECTOR ASSY 5 Check DRUM CARTRIDGE replacement Replace the DRUM CARTRIDGE l Does the problem still occur Go to Step 6 Problem solved 6 Check TONER BOX SENSOR installation l Is the TONER BOX SENSOR properly installed With the diagnostic too...

Page 368: ...the defective part s Go to Step 2 2 Isolation Engine or Controller Run the Engine test print or diagnostic test print 10 sheets for each of single and continuous print l Are the outputs normal Check the Controller PWB If the problem still occurs go to step 3 Go to Step 3 3 Check MCY PWB replacement Replace the MCU PWB l Does the problem still occur Go to FIP 2 39 Electrical Noise Problem solved ...

Page 369: ...R ASSY l Does the problem occur when the printer is turned on Go to FIP 2 29 TEMP SENSOR ASSEMBLY is Defective Go to Step 5 5 Check H R HEATER P R HEATER NOTE Make sure the FUSER ASSY is cool l Do the H R HEATER and P R HEATER come on when the printer is turned on Go to Step 6 Replace the H R HEATER P R HEATER 6 l Does the problem occur while the FUSER is warming up Go to FIP 2 29 TEMP SENSOR ASSE...

Page 370: ... inspect ROS ASSY MCU PWB Replace reinstall the defective part s Go to Step 2 2 Isolation Engine or Controller Run the Engine test print or diagnostic test print 10 sheets for each of single and continuous print l Are the outputs normal Check the Controller PWB If the problem still occurs go to FIP 2 19 ROS ASSY is Defective Go to FIP 2 19 ROS ASSY is Defective ...

Page 371: ... Install the TRANSFER ASSY properly 6 Check PROCESS WDD ASSY Rotate the rotor of the PROCESS MOTOR ASSY l Does the output shaft smoothly rotate without any irregular sound Go to Step 7 Replace the PROCESS DRIVE ASSY 7 Check TRO SENSOR installation l Is the TRO SENSOR properly installed With the diagnostic tool go to step 8 Without the diagnostic tool go to FIP 2 25 TRO SENSOR is Defective Install ...

Page 372: ...o Step 5 Problem solved 5 Check MCU PWB replacement Return the COMMUNICATION ASSY and replace the MCU PWB with a new MCU PWB ASP l Does the problem still occur Go to Step 6 Problem solved 6 l Does the problem occur when the printer is turned on Go to Step 7 If any other error status message appears go to the relevant FIP 7 Replace the installed MCU PWB with another new one ASP and then turn the pr...

Page 373: ...OR 1 Insert a sheet of paper from the rear side onto the SIZE SWITCH ASSY 2 Install the cassette 1 3 Pull out the sheet If you feel resistance it means the Paper Size Switches are pushed l Does the TRAY SIZE ACTUATOR push the Paper Size Switches when the cassette 1is installed With the diagnostic tool go to step 5 Without the diagnostic tool go to FIP 2 5 SIZE SWITCH ASSY is Defective Replace the ...

Page 374: ...oblem still occurs go to FIP 2 19 ROS ASSY is Defective 4 Check ADC Sensor surface l Is the ADC Sensor surface smeared or lodged with any foreign matter With the diagnostic tool go to step 6 Without the diagnostic tool go to FIP 2 21 ADC SOLENOID is Defective With the diagnostic tool go to step 5 Without the diagnostic tool go to FIP 2 20 ADC SENSOR is Defective 5 Check ADC Sensor l Is the ADC Sen...

Page 375: ... Step 4 4 Check Image on the Drum surface l Are the image densities of all colors on the drum low NOTE During printing turn the printer off when transfer is assumed to process and check for Cin50 on the drum surface visually Go to Step 5 Go to Step 11 5 Check Dispense Motor installation l Is the Dispense Motor properly installed With the diagnostic tool go to step 6 Without the diagnostic tool go ...

Page 376: ...c tool go to FIP 2 20 ADC SENSOR is Defective 9 Check ADC Sensor l Is the ADC Sensor properly functioning Check it by using the diagnostic tool Diag Tool Digital Output Test Device Code 18 33 Replace the MCU PWB Go to FIP 2 20 ADC SENSOR is Defective 10 Check ADC Solenoid l Is the ADC Solenoid properly functioning Diag Tool Digital Output Test Device Code 36 Replace the MCU PWB Go to FIP 2 21 ADC ...

Page 377: ...em still occurs go to step 3 Go to Step 3 3 Check P H Motor rotation l Does the P H Motor rotate slightly and then stops during the test print Go to Step 5 Go to Step 4 4 Check P H Motor rotation l Is the P H Motor motionless at all during the test print Go to FIP 2 34 P H MOTOR ASSY is Defective Replace the MCU PWB 5 Check Drive transmission Rotate the rotor in the P H MOTOR ASSY manually counter...

Page 378: ...TOR ASSY rotate smoothly Go to Step 11 Replace the WASTE TONER BOX 11 Check FEED ROLL ASSY 1 Push down the FEED SOLENOID arm 2 Mesh the gears 3 Manually rotate the rotor in the P H MOTOR ASSY counterclockwise l Dose the FEED ROLL ASSY rotate smoothly Go to Step 12 Replace the interfering part 12 Check 2ND BTR CAM ASSY 1 Remove the FUSER ASSY BELT CLEANER ASSY and 2ND BTR ASSY 2 Manually rotate the...

Page 379: ...the ENVIRONMENT SENSOR properly functioning Check it by using the diagnostic tool Diag Tool Analog Input Test Device Code 04 Replace the MCU PWB Go to Step 3 3 Check ENVIRONMENT SENSOR resistance l Does the thermistor have proper resistance at the pins below J105 1PIN J105 2PIN 5 kΩ NOTE Measure the resistance at the room temperature 18 to 20 C Go to Step 4 Replace the ENVIRONMENT SENSOR 4 Check P...

Page 380: ...to Step 5 5 Check ROTARY SENSOR ASSY installation l Is the ROTARY SENSOR ASSY properly installed Go to Step 6 Install the ROTARY SENSOR ASSY properly 6 Check ROTARY MOTOR ASSY installation l Is the ROTARY MOTOR ASSY properly installed With the diagnostic tool go to step 7 Without the diagnostic tool go to FIP 2 24 ROTARY SENSOR is Defective Install the ROTARY MOTOR ASSY properly 7 Check ROTARY SEN...

Page 381: ...o Step 3 Set the WASTE TONER BOX securely 3 Check DRAM CARTRIDGE l Is the DRAM CARTRIDGE securely set Go to Step 4 Set the DRAM CARTRIDGE securely 4 Check TONER BOX SENSOR installation l Is the TONER BOX SENSOR properly installed With the diagnostic tool go to step 5 Without the diagnostic tool go to FIP 2 18 TONER BOX SENSOR is Defective Install the TONER BOX SENSOR properly 5 Check TONER BOX SEN...

Page 382: ...oise Step Check point Remedy Yes No 1 Perform the preliminary inspection Parts to inspect COMMUNICATION ASSY MCU PWB Replace reinstall the defective part s Go to Step 2 2 l Does the problem occur the instance the printer is turned on Go to Step 3 If another error status message appears go to the relevant FIP 3 Replace the MCU PWB and turn the printer back on l Does the problem still occur Go to FI...

Page 383: ...ith a new one l Does the problem still occur With the diagnostic tool go to step 5 Without the diagnostic tool go to FIP 2 22 CARTRIDGE SENSOR is Defective Problem solved 5 Check CARTRIDGE SENSOR l Is the CARTRIDGE SENSOR properly functioning Diag Tool Digital Input Test Device code 0D Replace the MCU PWB Go to FIP 2 22 CARTRIDGE SENSOR is Defective Step Check point Remedy Yes No 1 Perform the pre...

Page 384: ... Sensor surface smeared or lodged with any foreign matter With the diagnostic tool go to step 6 Without the diagnostic tool go to FIP 2 21 ADC SOLENOID is Defective Go to Step 4 4 Check ADC SENSOR ASSY installation l Is the ADC SENSOR ASSY properly installed With the diagnostic tool go to step 5 Without the diagnostic tool go to FIP 2 20 ADC SENSOR is Defective Install the ADC SENSOR ASSY properly...

Page 385: ... Does the problem still occur after Error Reset Go to Step 3 Problem solved 3 Replace the relevant part l Does the problem still occur Go to Step 4 Replace the relevant part 4 l Does the problem occur when the printer is turned on Go to Step 7 Go to Step 5 5 l Does the problem still occur when the printer is turned on again Go to Step 7 Go to Step 6 6 l Does the problem occur when the printer is t...

Page 386: ...at there is no electrical shortage P33 6PIN P33 8PIN 5VDC P33 5PIN P33 7PIN 5VDC P33 3PIN P33 4PIN 5VDC l Is there electrical shortage in any part Check the Controller PWB If the problem still occurs go to step 3 Go to Step 3 3 Check Power supply voltage for short circuited parts 1 Disconnect any connector but J12 and J21 and turn the printer on 2 After a few minutes measure the voltage at the pin...

Page 387: ...rint or diagnostic test print 10 sheets for each of single and continuous print l Are the outputs normal Replace the Controller PWB If the problem still occurs go to step 4 Check the Controller PWB If the problem still occurs go to Step 4 4 l Does the printer enter reset condition during printing Go to FIP 2 39 Electrical Noise Go to Step 5 5 Check Interface cable Replace the interface cable l Doe...

Page 388: ... the DIMM with the latest program l Does the problem still occur Replace reinstall the defective part Problem solved Step Check point Remedy Yes No 1 Perform the preliminary inspection below Remove all optional electrical unit modules to return the printer to the standard condition Check that all connectors are properly connected to the CONTROLLER PWB Replace reinstall the defective part s Go to S...

Page 389: ...one to the slot 1 and 2 l Is there any defective SD RAM NOTE Be sure to install a SD RAM whose memory is more than 32MB in the slot 0 Before reinstalling each SD RAM verify the correct direction for installing it and insert it to the socket until it is locked Replace reinstall the defective part Problem solved Step Check point Remedy Yes No 1 Perform the preliminary inspection below Remove all ele...

Page 390: ...ormat the current DIMM and load the latest program Format a new DIMM and load the latest program l Does the problem still occur Replace the CONTROLLER PWB Problem solved Step Check point Remedy Yes No 1 Perform the preliminary inspection below Remove all electrical unit modules to return the printer to the standard condition Check that all connectors are properly connected to the CONTROLLER PWB Re...

Page 391: ...p 2 2 Check IC15 Error C1200 Replace the IC15 Error C1210 Replace the IC15 l Does the problem still occur Replace the CONTROLLER PWB Problem solved Step Check point Remedy Yes No 1 Perform the preliminary inspection below Remove all electrical unit modules to return the printer to the standard condition Check that all connectors are properly connected to the CONTROLLER PWB Replace reinstall the de...

Page 392: ...orm the preliminary inspection below Remove all electrical unit modules to return the printer to the standard condition Check that all connectors are properly connected to the CONTROLLER PWB Replace reinstall the defective part s Go to Step 2 2 Check CONTROLLER PWB replacement Replace the CONTROLLER PWB l Does the problem still occur Problem solved ...

Page 393: ...VER ASSY is open Turns off the FRONT COVER SWITCH L With the diagnostic tool go to step 4 Without the diagnostic tool go to step 5 Replace the defective part 4 Check FRONT COVER SWITCH L l Is the FRONT COVER SWITCH L properly functioning Diag Tool Digital Input Test Device code 27 Replace the MCU PWB Go to Step 5 5 Check Power supply to the FRONT COVER SWITCH L l Is the voltage level correct at th...

Page 394: ... the diagnostic tool go to step 5 Replace the interfering part 4 Check MAIN P H ASSY detection l Is the MAIN P H ASSY detection mechanism properly functioning Diag Tool Digital Input Test Device code 20 Replace the MCU PWB Go to Step 5 5 Check Power supply to the MAIN P H ASSY l Is the voltage level correct at the pins below P20 30PIN P20 31PIN 5VDC Go to Step 6 Go to FIP 2 1 LVPS 5VDC is Defectiv...

Page 395: ...EXIT UPPER ASSY is open Turns the EXIT CHUTE SWITCH OFF With the diagnostic tool go to step 4 Without the diagnostic tool go to step 5 Replace the defective part 4 Check EXIT CHUTE SWITCH l Is the EXIT CHUTE SWITCH properly functioning Diag Tool Digital Input Test Device code 0B Replace the MCU PWB Go to Step 5 5 Check Power supply to the EXIT CHUTE SWITCH l Is the voltage level correct at the pin...

Page 396: ...ep 4 Without the diagnostic tool go to step 5 Replace the interfering part 4 Check MAIN FUSER ASSY detection l Is the MAIN FUSER ASSY detection mechanism properly functioning Diag Tool Digital Input Test Device code 24 Replace the MCU PWB Go to Step 5 5 Check Power supply to the MAIN FUSER ASSY l Is the voltage level correct at the pins below P19 16PIN P19 15PIN 5VDC Go to Step 6 Go to 6 Check MAI...

Page 397: ...hly inserted Go to Step 4 Replace the defective part 4 Check BOTTOM PLATE ASSY Remove the TURN IN CHUTE 3T and then insert the UNIVERSAL CASSETTE l Does the BOTTOM PLATE ASSY properly lift up when the UNIVERSAL CASSETTE is inserted Go to Step 5 Replace the defective part 5 Check LOW PAPER SENSOR installation l Is the LOW PAPER SENSOR properly installed With the diagnostic tool go to step 6 Without...

Page 398: ...pecifications n Check if any part has been installed improperly n Check for part that is damaged deformed smeared or lodged with foreign matter Step Check point Remedy Yes No 1 Perform the preliminary inspection Parts to inspect LVPS MCU PWB MAIN HARNESS ASSY Replace reinstall the defective part s Go to Step 2 2 l Check LVPS Is the voltage level correct at the pins below P33 6PIN P33 8PIN 5VDC P33...

Page 399: ... 12PIN 24VDC Go to Step 4 Go to Step 6 4 Check LVPS relay circuit Close the FUSER ASSY MAIN P H ASSY and FRONT COVER ASSY l Is the voltage level correct at the pins below P32 11PIN P32 12PIN 24VDC Go to Step 5 Replace the LVPS 5 Check MAIN HARNESS ASSY electrical continuity l Does the MAIN HARNESS ASSY have proper continuity at the pins below J32 J21 Replace the MCU PWB Replace the MAIN HARNESS AS...

Page 400: ...ose the FUSER ASSY FRONT COVER ASSY and TOP COVER ASSY l Is the voltage level correct at the pins below P91 1PIN P32 12PIN 24VDC Go to Step 12 Replace the P H HARNESS ASSY 12 Check Power supply to the FUSER ASSY Close the MAIN P H ASSY and FRONT COVER ASSY l Is the voltage level correct at the pins below P71 3PIN P32 12PIN 24VDC Go to Step 13 Go to Step 16 13 Check MAIN HARNESS ASSY Close the MAIN...

Page 401: ...Y electrical continuity l Does the MAIN P H ASSY have proper continuity at the pins below J91 1PIN J91 2PIN Go to Step 17 Replace the MAIN P H ASSY 17 Check P H HARNESS ASSY electrical continuity l Does the P H HARNESS ASSY have proper continuity at the pins below P91 1PIN J97 2PIN Go to Step 18 Replace the P H HARNESS ASSY 18 Check FUSER CONNECTOR electrical continuity l Does the FUSER CONNECTOR ...

Page 402: ...O PAPER detection signal l Is the voltage level correct at the pins below P20 17PIN P20 16PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check TRAY NO PAPER detection signal l Is the voltage level correct depending on the conditions below Pins P J20 17PIN P J20 16PIN Passed paper is set 0VDC Blocked no paper is set 5VDC Replace the MCU PWB Go to Step 5 5 Check TRAY N P HARNESS electrical continuity l...

Page 403: ...ion signal l Is the voltage level correct at the pins below P20 18PIN P20 19PIN 5VDC Go to Step 3 Replace the MCU PWB 3 Check LOW PAPER detection signal l Is the voltage level correct depending on the conditions below Pins P J20 18PIN P J20 19PIN 20 sheets of paper are set 0VDC 200 sheets of paper are set 5VDC Replace the MCU PWB Go to Step 4 4 Check P H HARNESS ASSY l Does the P H HARNESS ASSY ha...

Page 404: ... correct at the pins below P19 27PIN P19 26PIN 5VDC Go to Step 3 Go to FIP 2 1 LVPS 5VDC is Defective 3 Check REGI detection signal l Is the correct voltage output at the pins below depending on the paper size Pins P J19 28PIN P J19 26PIN NOTE For the correct voltages refer to Chapter 2 Section 2 7 1 Paper Size Control Replace the MCU PWB Go to Step 4 4 Check MAIN HARNESS ASSY electrical continuit...

Page 405: ...supply to the FEED SOLENOID l Is the voltage level correct at the pins below P J19 29PIN P J21 2PIN 24VDC Go to Step 3 Go to FIP 2 2 LVPS 24VDC is Defective 3 Check FEED SOLENOID l Does the FEED SOLENOID have proper continuity at the pins below Pins J19 29PIN J19 30PIN Resistance 90Ω Replace the MCU PWB Go to Step 4 4 Check MAIN HARNESS ASSY l Does the MAIN HARNESS ASSY have proper continuity at t...

Page 406: ...IN P20 33PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check MSI SHORT N P detection signal l Is the voltage level correct depending on the conditions below Pins P J20 34PIN P J20 33PIN Passed condition paper is set 0VDC Blocked condition no paper is set 5VDC Replace the MCU PWB Go to Step 5 5 Check MSI HARNESS ASSY electrical continuity l Does the MSI HARNESS ASSY have proper continuity at the pins...

Page 407: ...below P20 14PIN P20 13PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check MSI LONG N Pdetection signal l Is the voltage level correct depending on the conditions below Pins P J20 14PIN P J20 13PIN Reflecting condition paper is set 0VDC Unreflecting condition no paper is set 5VDC Replace the MCU PWB Go to Step 5 5 Check MSI HARNESS ASSY l Does the MSI HARNESS ASSY have proper continuity at the pins b...

Page 408: ...the pins below P20 10PIN P20 13PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check MSI EDGE detection signal l Is the voltage level correct depending on the conditions below Pins P J20 10PIN P J20 13PIN Reflecting condition paper is set 0VDC Unreflecting condition no paper is set 5VDC Replace the MCU PWB Go to Step 5 5 Check MSI HARNESS ASSY Does the MSI HARNESS ASSY have proper continuity at the pi...

Page 409: ... 2 2 LVPS 24VDC is Defective 3 Check MSI CLUTCH l Does the MSI CLUTCH have proper continuity at the pins below Pins J20 36PIN J20 35PIN Resistance 169 Ω Replace the MCU PWB Go to Step 4 4 Check P H HARNESS ASSY l Does the P H HARNESS ASSY have proper continuity at the pins below Pins J20 P91 Go to Step 5 Replace the P H HARNESS ASSY 5 Check REGI HARNESS l Does the REGI HARNESS have proper continui...

Page 410: ... Go to FIP 2 2 LVPS 24VDC is Defective 3 Check PICK UP SOLENOID l Is proper resistance output at the pins below Pins J20 37PIN J20 38PIN Resistance 89Ω Replace the MCU PWB Go to Step 4 4 Check P H HARNESS ASSY l Does the P H HARNESS ASSY have proper continuity at the pins below Pins J20 P91 Go to Step 5 Replace the P H HARNESS ASSY 5 Check REGI MAIN HARNESS l Does the REGI MAIN HARNESS have proper...

Page 411: ... 5VDC Go to Step 4 Replace the MCU PWB 4 Check FRONT OHP detection signal l Is the voltage level correct depending on the conditions below Pins P J20 5PIN P J20 4PIN Photo reflecting status paper is set 0VDC Photo unreflecting status no paper is set 5VDC NOTE When setting the conditions reflecting and unreflecting use white paper not OHP sheet Use of OHP sheet causes failure in judgement since it ...

Page 412: ...VDC Go to Step 4 Replace the MCU PWB 4 Check REAR OHP detection signal l Is the voltage level correct depending on the conditions below Pins P J20 8PIN P J20 7PIN Photo reflecting status paper is set 0VDC Photo unreflecting status no paper is set 5VDC NOTE When setting the conditions reflecting and unreflecting use white paper not OHP sheet Use of OHP sheet will cause failure in judgement since it...

Page 413: ...signal l Is the voltage level correct at the pins below P20 2PIN P20 1PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check REGI detection signal l Is the voltage level correct depending on the conditions below Pins P J20 2PIN P J20 1PIN Reflecting condition paper is set 0VDC Unreflecting condition no paper is set 5VDC Replace the MCU PWB Replace the Go to Step 5 5 Check REGI HARNESS ASSY electrical c...

Page 414: ...e pins below P J20 25PIN P J20 27PIN 24VDC Go t step 3 Go to FIP 2 1 LVPS 5VDC is Defective 3 Check REGI CLUTCH l Does the REGI CLUTCH have proper continuity at the pins below Pins J20 25PIN J20 27PIN Resistance 171 Ω Replace the MCU PWB Go to Step 4 4 Check P H HARNESS ASSY l Does the P H HARNESS ASSY have proper continuity at the pins below J20 P91 Go to Step 5 Replace the P H HARNESS ASSY 5 Che...

Page 415: ...the pins below P J20 25PIN P J20 27PIN 24VDC Go to Step 3 Go to FIP 2 2 LVPS 24VDC is Defective 3 Check REGI CLUTCH l Does the REGI CLUTCH have proper continuity at the pins below Pins J20 25PIN J20 27PIN Resistance 174Ω Replace the MCU PWB Go to Step 4 4 Check P H HARNESS ASSY l Does the P H HARNESS ASSY have proper continuity at the pins below J20 P91 Go to Step 5 Replace the P H HARNESS ASSY 5 ...

Page 416: ...signal l Is the voltage level correct at the pins below P18 A2PIN P18 A1PIN 5VDC Go to Step 4 Go to Step MCU PWB 4 Check WASTE TONER detection signal l Is the voltage level correct depending on the conditions below Pins P J18 A2PIN P J18 A1PIN Passed condition 0VDC Waste toner level is Low Blocked condition 5VDC Waste toner level is High Full Go to Step MCU PWB Go to Step 5 5 Check TONER BOX HARNE...

Page 417: ...e level correct at the pins below P18 A6PIN P18 A5PIN 5VDC Go go step 4 Replace the MCU PWB 4 Check TONER BOX detection signal l Is the voltage level correct depending on the conditions below Pin P J18 A6PIN P J18 A5PIN Passed condition 0VDC WASTE TONER BOX is installed Blocked condition 5VDC WASTE TONER BOX is not installed Replace the MCU PWB Go to Step 5 5 Check TONER BOX HARNESS electrical con...

Page 418: ...Go to Step 4 Replace the MCU PWB 4 Check Rotation of the Scanner Motor l Does the Scanner Motor rotate when the printer is turned on Check that the motor is making a sound Go to Step 7 Go to Step 5 5 Check Power supply to the Scanner Motor l Is the voltage level correct at the pins below P14 10PIN P14 11PIN 24VDC Go to Step 6 Go to FIP 2 2 LVPS 24VDC is Defective 6 Check Scanner Motor ON signal l ...

Page 419: ...ASSY pushing in the contact area of the TOP COVER SWITCH when the TOP COVER ASSY is installed Go to Step 12 Replace the interfering part 12 Check FRONT COVER SWITCH R electrical continuity l Do the terminals in the FRONT COVER SWITCH R have proper continuity status depending on the conditions below FRONT COVER is closed Close FRONT COVER is open Open Go to Step 13 Replace the FRONT COVER SWITCH R ...

Page 420: ... Check Power supply to the ADC Sensor l Is the voltage level correct at the pins below P17 18PIN P17 21PIN 5VDC Go to Step 3 Go to FIP 2 1 LVPS 5VDC is Defective 3 Check MAIN HARNESS ASSY electrical continuity l Does the MAIN HARNESS ASSY have proper continuity at the pins below J17 J81 Go to Step 4 Replace the MAIN HARNESS ASSY 4 Check ADC SENSOR ASSY replacement l Does the problem still occur af...

Page 421: ... 2 2 Check Power supply to the ADC Solenoid l Is the voltage level correct at the pins below P J17 22PIN P J17 23PIN 24VDC Go to Step 3 Go to FIP 2 2 LVPS 24VDC is Defective 3 Check ADC Solenoid l Does the ADC Solenoid have proper continuity at the pins below Pins J17 22PIN 17 23PIN Resistance 36 Ω Replace the MCU PWB Go to Step 4 4 Check MAIN HARNESS ASSY l Does the MAIN HARNESS ASSY have proper ...

Page 422: ...ep 4 Replace the MCU PWB 4 Check CARTRIDGE detection signal l Is the voltage level correct depending on the conditions below Pins P J17 5PIN P J17 4PIN Passed condition cartridge is installed 0VDC Blocked condition cartridge is not installed 5VDC Replace the MCU PWB Go to Step 5 5 Check CART SENSOR HARNESS electrical continuity l Does the CART SENSOR HARNESS have proper continuity at the pins belo...

Page 423: ...FIP 2 1 LVPS 5VDC is Defective 3 Check Power supply to the USED CART detection signal l Is the voltage level correct at the pins below P17 2PIN P17 1PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check USED CART detection signal l Is the voltage level correct depending on the conditions below Pins P J17 2PIN P J17 1PIN Passed condition Cartridge is new 0VDC Blocked condition Cartridge is old 5VDC Rep...

Page 424: ...5VDC is Defective 3 Check Power supply to the ROTARY SENSOR detection signal l Is the voltage level correct at the pins below P19 5PIN P17 4PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check ROTARY SENSOR detection signal l Is the voltage level correct depending on the conditions below Pins P J19 5PIN P J17 4PIN Penetrated condition 0VDC The notch is not detected Blocked condition 5VDC The notche i...

Page 425: ...Power supply to the TRO detection signal l Is the voltage level correct at the pins below P17 13PIN P17 14PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check TRO detection signal l Is the voltage level correct depending on the conditions below Pins P J17 13PIN P J17 14PIN Reflecting condition 0VDC TRO mark in the IBT BELT ASSY is detected Unreflecting condition 5VDC Area other than TRO mark in the I...

Page 426: ...BTR CAM SOLENOID l Is the voltage level correct at the pins below P J19 39PIN P J21 2PIN 24VDC Go to Step 3 Go to FIP 2 2 LVPS 24VDC is Defective 3 Check BTR CAM SOLENOID electrical continuity l Does the BTR CAM SOLENOID have proper continuity at the pins below Pins J19 39PIN J19 40PIN Resistance 215Ω Replace the MCU PWB Go to Step 4 4 Check MAIN HARNESS ASSY l Does the MAIN HARNESS ASSY have prop...

Page 427: ...at the pins below P19 8PIN P19 9PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check FUSER IN detection signal l Is the voltage level correct depending on the conditions below Pins P J19 8PIN P J19 9PIN Passed condition paper is set 0VDC Blocked condition no paper is set 5VDC Replace the MCU PWB Go to Step 5 5 Check FUSER IN HARNESS electrical continuity l Does the FUSER IN HARNESS have proper contin...

Page 428: ...IN P19 14PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check FUSER EXIT detection signal l Is the voltage level correct depending on the conditions below Pins P J19 13PIN P J19 14PIN Penetrated condition paper is set 0VDC Blocked condition no paper is set 5VDC Replace the MCU PWB Go to Step 5 5 Check MAIN HARNESS electrical continuity l Does the MAIN HARNESS have proper continuity at the pins below ...

Page 429: ...ed with any foreign matter Replace clean the TEMP SENSOR ASSY Go to Step 3 3 Check TEMP SENSOR ASSY for thermistor resistance l Is the resistance correct at the pins below Pins P72 4PIN P72 5PIN Resistance 240 kΩ at 18 20 C Go to Step 4 Replace clean the TEMP SENSOR ASSY 4 Check FUSER HARNESS ASSY electrical continuity l Does the FUSER HARNESS ASSY have proper continuity at the pins below J71 J72 ...

Page 430: ...P J21 2PIN 24VDC Go to Step 3 Go to FIP 2 2 LVPS 24VDC is Defective 3 Check OIL CAM SOLENOID l Does the OIL CAM SOLENOID have proper continuity at the pins below Pins J18 B3PIN J18 B4PIN Resistance 215Ω Replace the MCU PWB Go to Step 4 4 Check FUSER HARNESS ASSY electrical continuity l Does the FUSER HARNESS ASSY have proper continuity at the pins below J73 J71PIN Go to Step 5 Replace the FUSER HA...

Page 431: ...at the pins below P J18 B5PIN P J21 2PIN 24VDC Go to Step 3 Go to FIP 2 2 LVPS 24VDC is Defective 3 Check CLEANER CAM SOLENOID l Does the CLEANER CAM SOLENOID have proper continuity at the pins below J18 B5PIN J18 B4PIN 215Ω Replace the MCU PWB Go to Step 4 4 Check FUSER HARNESS ASSY l Does the FUSER HARNESS ASSY have proper continuity at the pins below J73 J71PIN Go to Step 5 Replace the FUSER HA...

Page 432: ...P EXIT l Is the voltage level correct at the pins below P17 9PIN P17 8PIN 5VDC Go to Step 4 Replace the MCU PWB 4 Check TOP EXIT detection signal l Is the voltage level correct depending on the conditions below P J17 9PIN P J17 8PIN Passed condition Paper is set 0VDC Blocked condition No paper is set 5VDC Replace the MCU PWB Go to Step 5 5 Check EXIT HARNESS electrical continuity l Does the EXIT H...

Page 433: ... the LVPS l Is the voltage level correct at the pins below J32 9 J32 10 24VDC Replace the MAIN HARNESS ASSY Go to FIP 2 2 LVPS 24VDC is Defective 4 Check Power supply to the PROCESS MOTOR s ON signal l Is the voltage level correct at the pins below P17 31 P17 33 24VDC Go to Step 5 Replace the MCU PWB 5 Check Power supply to the PROCESS MOTOR SPEED signal l Is the voltage level correct at the pins ...

Page 434: ...ower supply to the LVPS l Is the voltage level correct at the pins below J32 8 J32 7 24VDC Replace the MAIN HARNESS ASSY Go to FIP 2 2 LVPS 24VDC is Defective 4 Check Power supply to the P H MOTOR ON signal l Is the voltage level correct at the pins below P17 26 P17 28 24VDC Go to Step 5 Replace the MCU PWB 5 Check Power supply to the P H MOTOR SPEED signal l Is the voltage level correct at the pi...

Page 435: ...the LVPS l Is the voltage level correct at the pins below J32 3 J32 2 24VDC Replace the MAIN HARNESS ASSY Go to FIP 2 2 LVPS 24VDC is Defective 4 Check Power supply to the ROTARY MOTOR ASSY l Is the voltage level correct at the pins below P16 12 P16 11 5VDC Go to Step 5 Go to FIP 2 1 LVPS 5VDC is Defective 5 Check Voltage level of the ROTARY MOTOR ON signal l Is the voltage level correct at the pi...

Page 436: ...eck MCU PWB replacement l Does the problem still occur after replacing the MCU PWB Replace the DISPENSE MOTOR ASSY Problem solved Step Check point Remedy Yes No 1 Perform the preliminary inspection Parts to inspect DEVE CLUTCH ASSY MAIN HARNESS ASSY MCU PWB Replace reinstall the defective part s Go to Step 2 2 Check Power supply to the DEVE CLUTCH ASSY l Is the voltage level correct at the pins be...

Page 437: ...ed or installed improperly Reinstall replace the BCR CONNECTOR ASSY Go to Step 5 5 Check DEVE CONTACT ASSY l Is the DEVE CONTACT ASSY deformed or damaged l Is the DEVE CONTACT ASSY installed improperly Go to Step 6 Reinstall replace the DEVE CONTACT ASSY 6 Check DTS WIRE l Do the terminals on the DEVE WIRE have continuity Go to Step 7 Replace the 2ND BTR CAM ASSY 7 Check DTS PLATE l Is the DTS PLA...

Page 438: ...11 11 Check Power supply to the LVPS l Is the voltage level correct at the pins below J32 4 J32 5 24VDC Replace the MAIN HARNESS ASSY Go to FIP 2 2 LVPS 24VDC is Defective 12 Check MAIN HARNESS ASSY electrical continuity l Does the MAIN HARNESS ASSY have continuity at the pins below J16 J42 Go to Step 13 Replace the MAIN HARNESS ASSY 13 Check MCU PWB replacement l Does the problem still occur afte...

Page 439: ...g wire securely 5 Check BCR CONNECTOR ASSY l Is the BCR CONNECTOR ASSY deformed damaged or installed improperly Reinstall replace the BCR CONNECTOR ASSY Go to Step 6 6 Check DEVE CONTACT ASSY l Is the DEVE CONTACT ASSY deformed damaged or installed improperly Reinstall replace the DEVE CONTACT ASSY Go to Step 7 7 Check 2ND BTR ASSY l Does the high voltage flow in the 2ND BTR ASSY have proper conti...

Page 440: ... to any other actions The Preliminary inspection involves the following n Check for any part that does not meet the specifications n Check if any part has been installed improperly n Check for part that is damaged deformed smeared or lodged with foreign matter S T A R T R u n a t e s t p r i n t P e r f o r m t h e c o r r e s p o n d i n g F I P T r o u b l e s h o o t t h e p r o b l e m F i n i...

Page 441: ... A4 or A3 paper to grasp and understand the troubled condition well and apply the appropriate solution If the problem is not solved using the FIP repeat the FIP again and replace the parts listed in the Preliminary inspection one by one to troubleshoot The FIPs for the common problems are as listed below n FIP 3 1 Low image density n FIP 3 2 Blank prints n FIP 3 3 Black prints n FIP 3 4 White ligh...

Page 442: ...Improper Charging Development During the image transfer turn the printer off and examine the toner image on the drum surface point before the transfer visually l Is the toner image on the drum developed properly Refer to FIP 2 38 HVPS is Defective 4 Improper 1st transfer During the image transfer turn the printer off and examine the image on the TRANSFER BELT ASSY visually l Is the image on the dr...

Page 443: ... Charging Development During the image transfer turn the printer off and examine the toner image on the drum surface point before the transfer visually l Is the toner image on the drum developed properly Refer to FIP 2 38 HVPS is Defective 4 Improper 1st transfer During the image transfer turn the printer off and examine the image on the TRANSFER BELT ASSY visually l Is the image on the drum prope...

Page 444: ...harging Using a sheet of paper cover the laser beam emission window and run a print l Does the problem still occur Refer to FIP 2 38 HVPS is Defective 2 ROS ASSY malfunction Using a sheet of paper cover the laser beam emission window half way and run a print l Does the problem still occurs Refer to FIP 1 22 ROS ASSY Related Error 3 DRUM CARTRIDGE malfunction Replace the DRUM CARTRIDGE with a new o...

Page 445: ...he DRUM CARTRIDGE l Has the problem been solved Replace the DRUM CARTRIDGE 2 ROS ASSY malfunction Using a sheet of paper cover the laser beam emission window half way and run a print l Does the problem still occurs Refer to FIP 1 22 ROS ASSY Related Error 3 FUSER ASSY malfunction Is the HEAT ROLL PRESSURE ROLL in the FUSER ASSY damaged smeared or lodged with any foreign matter Replace the FUSER AS...

Page 446: ...ct Developer ASSY DRUM CARTRIDGE BELT TRANSFER ASSY 2ND BTR HEAT ROLL PRESSURE ROLL OIL ROLL ASSY FEED ROLL ASSY Item Check Points Remedy When abnormal 1 Periodicity l Do the lines appear periodically Replace the faulty part Note You can find the faulty part based on the periodicity and the roller circumference 2 Controller PWB malfunction Replace the Controller PWB with a new one l Has the proble...

Page 447: ...toner image on the drum surface point before the transfer visually l Is the toner image on the drum developed properly Refer to FIP 2 38 HVPS is Defective 3 Improper 1st transfer During the image transfer turn the printer off and examine the image on the TRANSFER BELT ASSY visually l Is the image on the drum properly transferred to the TRANSFER BELT ASSY Refer to FIP 2 38 HVPS is Defective 4 HEAT ...

Page 448: ...hen abnormal 1 Deteriorated carrier Replace the relevant Developer assy with a new one l Has the problem been solved Replace the Developer assy 2 DEVE CONTACT ASSY installation l Is the DEVE CONTACT ASSY properly installed Install the DEVE CONTACT ASSY properly 3 HVPS malfunction Replace the HVPS l Has the problem been solved Replace the HVPS 4 DRUM CARTRIDGE malfunction Replace the DRUM CARTRIDGE...

Page 449: ...dition l Is the paper path damage smeared or lodged with any foreign matter Clean the defective part or replace it 3 Defective Paper loading rollers l Do the paper loading rollers load paper Clean or replace the defective roll 4 Defective paper feeding rollers l Is any of the paper feeding rollers deformed smeared or lodged with any foreign matter l Are the paper feeding rollers operating improper...

Page 450: ...Instruct the customer to store paper in a dry place 2 HEAT ROLL PRESSURE ROLL in the FUSER ASSY malfunction l Is the HEAT ROLL PRESSURE ROLL in the FUSER ASSY damaged smeared lodged with any foreign matter Clean or replace the HEAT ROLL PRESSURE ROLL in the FUSER ASSY 3 Paper skew l Is paper fed aslant Refer to FIP 3 8 Skew 4 Bad paper path condition l Is the paper path damaged smeared or lodged w...

Page 451: ...e the Paper Instruct the customer to store paper in a dry place 2 TEMP SENSOR ASSY l Is the TEMP SENSOR ASSY surface dirty Clean or replace the TEMP SENSOR ASSY 3 HEAT ROLL PRESSURE ROLL malfunction l Is the HEAT ROLL PRESSURE ROLL in the FUSER ASSY damaged smeared or lodged with any foreign matter Clean or replace the HEAT ROLL PRESSURE ROLL in the FUSER ASSY 5 MAIN FUSER ASSY malfunction l Are t...

Page 452: ...C H A P T E R 6 MAINTENANCE ...

Page 453: ...f the On site Service 3 MAINTENANCE MENU 5 Entry to the Maintenance Menu 5 Engine Status Sheet 6 CONSUMABLE REPLACEMENT 8 TONER CARTRIDGE Replacement 9 OIL ROLL ASSEMBLY Replacement 11 DRUM CARTRIDGE Replacement 12 WASTE TONER BOX Replacement 14 REGULARLY REPLACED PART REPLACEMENT 15 INSTALLATION 15 ...

Page 454: ... 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 n Be aware that this printer emits laser beam when the printer ...

Page 455: ... t h e e n g i n e h i s t o r y P r i n i t q u a l i t y c h e c k P u r p o s e o f v i s i t i n g R e p a i r M a i n t e n a n c e R e a p p e a r a n c e o f t h e t r o u b l e G o t o C h a p t e r 5 T o u b l e s h o o t i n g C l e a n i n g P r e v e n t i v e m a i n t e n a n c e R e p l a c e m e n t o f c o n s u m a b l e s a n d r e g u l a r r e p l a c e d p a r t C h e c k i n...

Page 456: ...f any abnormality is found in the listed check points n Check the life counters of the consumables and regularly replaced parts See Section 6 2 n Perform the adjustment See Chapter 3 o Cleaning 1 Remove any foreign matter lodged in the 2ND BTR ASSEMBLY MAIN P H ASSEMBLY FUSER ASSEMBLY and rollers in the paper paths and so on Then clean the dirt using a brush or dry soft cloth NOTE To remove severe...

Page 457: ...ced part needs replacing and replace it if necessary o Replacing the consumables and regularly replaced parts Replace any regularly replaced part if necessary See Section 6 3 Consumable Replacement and Section 6 4 Regularly Replaced Part Replacement o Checking overall printer operation After servicing give an overall checking to the printer Print a few status sheets and a test prints with data sen...

Page 458: ...ext message appears MAINTENANCE MODE Ready The printer is in a usual ready status 2 Referring to the flowchart below activate the desirable function throughout the panel operation Figure 6 2 Maintenance Menu Operation C A U T I O N n Check the following before entering the Maintenance menu All interface cables are disconnected Service Call Error is not indicated n Before exiting the menu ensure th...

Page 459: ...00 for K toner 6000 for Y M C toners Individual counter value for each color of toner cartridge is stored in the EEPROM on the MCU PWB When a new cartridge is detected the counter for the appropriate counter is automatically reset T O N E R C A R T R I D G E D R U M C A R T R I D G E 2 N D B T R A S S Y B E L T C L E A N E R A S S Y O I L R O L L A S S Y M C U P W B V e r s i o n Y Y Y X X X Z Z Z...

Page 460: ... the Maintenance menu BELT CLEANER ASSEMBLY Shows the total number of printed pages converted in A4 Letter size The counter value is stored in the EEPROM on the MCU PWB When a relevant Maintenance service call error or Service cal error E0023 is indicated replace the BELT CLEANER ASSEMBLY with a new one and perform IBT CLEANER Reset in the Maintenance menu MAIN FUSER ASSEMBLY Shows Toner dispense ...

Page 461: ...Figure 6 4 Consumables Life information on these consumables is informed as follows Step 1 Warning indication near end on the LCD Step 2 Life end indication on the LCD As for toner level users can check by printing a status sheet or panel operation Servicers on the other hand can access to all the detailed information through out each cousumabels life using the maintenance mode a TONER CARTRIDGE b...

Page 462: ...ammable Figure 6 7 TONER CARTRIDGE Replacement 2 C A U T I O N n Ensure that the colors of the TONER CARTRIDGE to be installed and the toner cartridge installation position are the same n Never use the TONER CARTRIDGE once taken out n 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 the printer may produce abnorma...

Page 463: ...the TONER CARTRIDGE is not properly positioned it may cause toner to spill inside the printer and brings out low print quality and printer malfunction and errors Figure 6 10 TONER CARTRIDGE Replacement 5 Figure 6 11 TONER CARTRIDGE Replacement 6 7 To replace the TONER CARTRIDGEs of other colors perform the same operations described step 3 to 6 8 Close the FRONT COVER and check that the LCD is indi...

Page 464: ...OLL ASSEMBLY Replacement 2 5 Inert the OIL ROLL ASSEMBLY into the printer body Figure 6 14 OIL ROLL ASSEMBLY Replacement 3 6 Close the FUSER ASSEMBLY C A U T I O N n Never touch the OIL ROLL ASSEMBLY directly Oil on the roll surface is harmless but should be washed away immediately if it gets on skin or clothes n Do not touch or mar the roll surface Doing so may cause abnormal printing n Do not le...

Page 465: ...Hold the handle in the DRUM CARTRIDGE and draw the DRAM CARTRIDGE out half way 6 Hold the handle at the top of the DRUM CARTRIDGE and draw the DRUM CARTRIDGE all the way out carefully Figure 6 17 DRUM CARTRIDGE Replacement 3 C A U T I O N n Never 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 dam...

Page 466: ... the photo conductor a blue cyrindrical part is not in contact with any parts inside the printer during its installation Figure 6 19 DRUM CARTRIDGE Replacement 5 9 Turn the lever on the DRUM CARTRIDGE in the direction indicated with the arrow Figure 6 20 DRUM CARTRIDGE Replacement 6 10 Turn the TENSION LEVER in the direction indicated with the arrow to align it with the l symbol Figure 6 21 DRUM C...

Page 467: ...tab of the WASTE TONER BOX Figure 6 22 WASTE TONER BOX Replacement 1 3 Pull the WASTE TONER BOX straight out Figure 6 23 WASTE TONER BOX Replacement 2 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 24 WASTE TONER BOX Replacement 3 5 Close the FRONT COVER The printer automatically return to a ready status C A U T I O N n Never reu...

Page 468: ...meets the power specifications defined for this printer The maximum power consumption of this printer is 1100W o Ground The printer must be properly grounded NOTE Do not ground the printer to the following Gas pipes Telephone line grounding terminal Water pipes partially made of plastic Table 6 1 Regularly Replaced Part Unit Reference Section 2ND BTR ASSEMBLY Section 3 2 11 5 MAIN FUSER ASSEMBLY S...

Page 469: ... ASSEMBLY 9 EXIT TRAY ASSEMBLY 10 Power Cord 11 Accessory box o Installation Procedure The following describes the installation procedures For details see the User s Guide NOTE Keep the protection sheet spacers and packing materials in case of moving the printer in future 1 Open the carton and remove the packing materials Place the printer where it is to be installed 2 Remove the protective tapes ...

Page 470: ...Do not touch the surface of the white roll in the OIL ROLL ASSEMBLY because the white roll is filled with fuser oil 18 Install the OIL ROLL ASSEMBLY above the FUSER ASSEMBLY 19 Close the FUSER ASSEMBLY 20 Draw out the UNIVERSAL TRAY Remove the packing material expanded polystyrene from the UNIVERSAL TRAY 21 Press down the BOTTOM PLATE ASSEMBLY in the UNIVERSAL TRAY and lock it at the bottom 22 Put...

Page 471: ... APPENDIX ...

Page 472: ...ring Diagram 1 33 Wiring Diagram 2 35 Wiring Diagram 3 37 Wiring Diagram 4 39 Wiring Diagram 5 41 Wiring Diagram 6 43 Wiring Diagram 7 45 Wiring Diagram 8 47 Wiring Diagram 9 49 Wiring Diagram 10 51 Wiring Diagram 11 53 Wiring Diagram 12 55 Wiring Diagram 13 57 COMPONENT LAYOUT 59 CIRCUIT DIAGRAMS 61 LARGE CAPACITY PAPER UNIT 69 Product Specifications 69 Basic Specifications 69 Paper Specification...

Page 473: ...L10 1 Paper Exit I PL5 1 Paper Transportation I PL10 2 Paper Exit II PL5 2 Paper Transportation II PL11 1 Drive PL6 1 Xerographics PL12 1 Frame PL7 1 Development I PL13 1 Electrical I PL7 2 Development II PL13 2 Electrical II PL8 1 IBT I PL14 1 Controller PL8 2 IBT II The numbers in each illustration correspond to the parts list number for that illustration PL X Y Z indicates part Z in Plate X Y T...

Page 474: ...PL 2 2 18 TRAY SIZE ACTUATOR 3 2 5 3 28 PL 3 1 1 FEED ROLL ASSY With 2 5 3 2 6 5 29 PL 3 1 3 FEED ROLL 3 2 6 3 30 PL 3 1 6 BEARING 3 2 6 5 Table A 2 Part List 2 9 No PL No Part Name Reference 31 PL 3 1 7 FEED GEAR 3 2 6 4 5 32 PL 3 1 8 FEED SPRING 3 2 6 5 33 PL 3 1 9 FEED SOLENOID 3 2 6 4 34 PL 3 1 10 FEED IDLER GEAR 35 PL 3 1 11 TURN ROLL ASSY 3 2 6 2 36 PL 3 1 12 BEARING 37 PL 3 1 13 TURN REAR B...

Page 475: ...AR GUIDE 88 PL 4 3 15 GUIDE BLOCK Table A 4 Part List 4 9 No PL No Part Name Reference 89 PL 4 3 16 SENSOR 3 2 7 14 90 PL 5 1 1 MAIN P H ASSY With 2 20 3 2 8 1 91 PL 5 1 4 P H TURN CHUTE ASSY 3 2 8 3 92 PL 5 1 5 PRE REGI CHUTE ASSY 3 2 8 6 93 PL 5 1 6 REGI CHUTE ASSY 3 2 8 4 94 PL 5 1 7 P H FRONT RAIL S 3 2 8 1 95 PL 5 1 8 P H FRONT RAIL L 3 2 8 1 96 PL 5 1 9 P H REAR RAIL S 3 2 8 1 97 PL 5 1 10 P...

Page 476: ...PL 7 1 20 DEVELOPER ASSY M With 21 23 50 3 2 10 2 145 PL 7 1 23 DEVELOPER M 3 2 10 3 146 PL 7 1 30 DEVELOPER ASSY C With 31 33 50 3 2 10 2 147 PL 7 1 33 DEVELOPER C 3 2 10 3 148 PL 7 1 40 DEVELOPER ASSY BK With 41 43 50 3 2 10 2 149 PL 7 1 44 DEVELOPER BK 3 2 10 3 Table A 6 Part List 6 9 No PL No Part Name Reference 150 PL 7 2 4 ROTARY REAR BEARING 3 2 10 5 151 PL 7 2 5 ROTARY LATCH ASSY 3 2 10 7 ...

Page 477: ...14 203 PL 9 3 22 OIL CAM ASSY 3 2 12 16 204 PL 9 3 25 CRU SWITCH ASSY 3 2 12 20 205 PL 9 3 26 FUSER HARNESS ASSY 206 PL 9 4 3 FUSER TRAY CAP A Table A 8 Part List 8 9 No PL No Part Name Reference 207 PL 9 4 4 SENSOR 208 PL 9 4 5 FUSER IN HARNESS 209 PL 9 4 6 FUSER IN HOLDER 210 PL 9 4 14 FUSER COLLAR 211 PL 9 4 15 INPUT GEAR FT1 3 3 1 212 PL 9 4 16 INPUT GEAR FT2 213 PL 9 4 17 INPUT STUD 214 PL 9 ...

Page 478: ... 3 2 16 2 246 PL 13 1 3 TOP COVER SWITCH 3 2 16 3 247 PL 13 1 5 DEVE FAN 3 2 16 4 248 PL 13 1 13 FUSER CONNECTOR 249 PL 13 1 22 MAIN HARNESS ASSY 250 PL 13 1 30 POWER CODE 251 PL 13 2 1 MCU PWB 3 2 16 5 252 PL 13 2 1 1 MCU ROM 253 PL 13 2 2 COMMUNICATION ASSY 254 PL 13 2 3 FRONT COVER SWITCH R 3 2 16 6 255 PL 13 2 4 FRONT COVER SWITCH L 3 2 16 7 256 PL 13 2 5 ENVIRONMENT SENSOR 3 2 16 8 257 PL 13 ...

Page 479: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 7 Figure A 2 PL2 1 Paper Tray I Figure A 3 PL2 2 Paper Tray II ...

Page 480: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 8 Figure A 4 PL3 1 Paper Feeder Figure A 5 PL4 1 Multi Sheet Insert I ...

Page 481: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 9 Figure A 6 PL4 2 Multi Sheet Insert II Figure A 7 PL4 3 Multi Sheet Insert III ...

Page 482: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 10 Figure A 8 PL5 1 Paper Transportation I Figure A 9 PL5 2 Paper Transportation II ...

Page 483: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 11 Figure A 10 PL6 1 Xerographics Figure A 11 PL7 1 Development I ...

Page 484: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 12 Figure A 12 PL7 2 Development II Figure A 13 PL8 1 IBT I ...

Page 485: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 13 Figure A 14 PL8 2 IBT II Figure A 15 PL8 3 IBT III ...

Page 486: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 14 Figure A 16 PL8 4 IBT IV Figure A 17 PL9 1 Fusing I ...

Page 487: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 15 Figure A 18 PL9 2 Fusing II Figure A 19 PL9 3 Fusing III ...

Page 488: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 16 Figure A 20 PL9 4 Fusing IV Figure A 21 PL10 1 Paper Exit I ...

Page 489: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 17 Figure A 22 PL10 2 Paper Exit II Figure A 23 PL11 1 Drive ...

Page 490: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 18 Figure A 24 PL12 1 Frame Figure A 25 PL 13 1 Electrical I ...

Page 491: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 19 Figure A 26 PL13 2 Electrical II Figure A 27 PL14 1 Controller ...

Page 492: ...PSON EPL C8000 Rev B Chapter A APPENDIX A 20 A 2 Wiring Diagrams This section describes the connector locations P and J stand for Plug and Jack respectively A 2 1 P J Locations Figure A 28 P J Location 1 ...

Page 493: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 21 Figure A 29 P J Location 2 Figure A 30 P J Location 3 ...

Page 494: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 22 Figure A 31 P J Location 4 Figure A 32 P J Location 5 ...

Page 495: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 23 Figure A 33 P J Location 6 Figure A 34 P J Location 7 ...

Page 496: ...MCU PWB and Main Harness Assembly 20 F 204 Connects MCU PWB and P H Harness Assembly 21 F 204 Connects MCU PWB and Main Harness Assembly 22 C 204 Connects Communication Assembly and Main Harness Assembly 22A C 204 Connector in Main Harness Assembly 32 D 609 Connects LVPS and Main Harness Assembly 33 D 610 Connects LVPS and Main Harness Assembly 35 G 609 Connects LVPS and Fuser Connector 41 C 609 C...

Page 497: ... Harness Assembly 74A I 813 Connector in Fuser Harness Assembly 75 H 808 Connects Fuser Exit Sensor and Temperature Sensor Assembly 76 F 813 Connects Fuser In Harness and Fuser Harness Assembly Table A 12 Plug and Jack P J Location Table 3 7 P J Coordinate Notes 76A F 813 Connector in Fuser Harness Assembly 77 G 808 Connects CRU Switch Assembly and Fuser Harness Assembly 77A G 808 Connector in Fus...

Page 498: ...t Sensor and P H Harness Assembly 105A D 205 Connector in P H Harness Assembly Table A 14 Plug and Jack P J Location Table 5 7 P J Coordinate Notes 106 E 211 Connects Low Paper Sensor and P H Harness Assembly 106A E 211 Connector in P H Harness Assembly 107 E 213 Connects Tray N P Sensor and Tray N P Harness 109 D 409 Connects Registration Brake Clutch and Registration Harness Assembly 109A D 409 ...

Page 499: ...nects MSI Clutch and Connector 2PW 203 G 409 Connects MSI Short N P Sensor and MSI Harness Assembly 204 G 408 Connects MSI Edge Sensor and MSI Harness Assembly 205 H 409 Connects MSI OHP Sensor and MSI Harness Assembly 206 G 409 Connects MSI Long N P Sensor and MSI Harness Assembly 207 F 409 Connector in MSI Harness Assembly Table A 16 Plug and Jack P J Location Table 7 7 P J Coordinate Notes 245 ...

Page 500: ... A 3 1 Master Wiring Diagram The following table gives the notations used in th wiring diagrams on the next page Table A 17 Notation Used NOTE On the following pages the Developer Assembly Y Developer Assembly M Developer Assembly C Developer Assembly Bk are called the Developer Assembly ...

Page 501: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 29 Figure 1 36 Master Wiring Diagram ...

Page 502: ... Assembly MCU PWB and Waste Toner Sensor MCU PWB and Toner Box Sensor MCU PWB and CRUM Connector Assembly MCU PWB and CRUM Assembly 3 MCU PWB HVPS LVPS BCR Connector Assembly Developer Contact Assembly Transfer Assembly 2nd BTR Cam Assembly Drum Cartridge 2nd BTR Assembly Connection between MCU PWB and HVPS LVPS and HVPS HVPS and BCR Connector Assembly HVPS and Developer Contact Assembly HVPS and ...

Page 503: ...ser Tray Assembly MCU PWB and Environment Sensor 9 MCU PWB Size Switch Assembly Feed Solenoid Tray N P Sensor Low Paper Sensor Connection between MCU PWB and Size Switch Assembly MCU PWB and Feed Solenoid MCU PWB and Tray N P Sensor MCU PWB and Low Paper Sensor 10 MCU PWB Main P H Assembly Connection between MCU PWB and Main P H Assembly 11 MCU PWB Main P H Assembly MSI Assembly Connection between...

Page 504: ...Diagrams for the Wiring and Signal Descriptions between Components The following table gives the notations used in the wiring diagrams on the following pages NOTE Standard and common symbols are not described Table A 18 Notaions in Use 1 2 Table A 19 Notations in Use 2 2 ...

Page 505: ...le A 20 Signal Description 1 Signal Name Description HEATER ON L 5VDC Control signal to turn the P R Heater and H R Heater ON OFF 24VDC I L Relay control signal to detect the interlock switches and interlock connectors Relay control signal in the LVPS 5VDC LD Power source voltage for the LD Assembly in the ROS Assembly SOS Scan start reference signal based on the light input to the SOS Sensor in t...

Page 506: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 34 Figure 1 37 Wiring Diagram 1 ...

Page 507: ... from the ADC Sensor ADC Sensor Assembly Analog ADC SOLENOID ON L 24VDC Control signal to turn the ADC Solenoid ADC Sensor Assembly ON OFF ERASE LAMP ON H 5VDC Control signal to turn the LED ON OFF in the Erase Lamp Assembly WASTE TONER SENSED H 5VDC Signal from the Waste Toner Sensor to detect the full Waste Toner Box TONER BOX SENSED L 5VDC Signal from the Toner Box Sensor to detect the Waste To...

Page 508: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 36 Figure 1 38 Wiring Diagram 2 ...

Page 509: ...put DC component Analog BCR ON L 24VDC Control signal turn the BCR output ON OFF BCR Charging output to the BCR Drum Cartridge from HVPS This is output in response to the BCR DC CONT signal when the BCR ON L 24VDC signal is turned on DB Output from the HVPS to the Developer Contact Assembly Magnet Roll in the Developer Assembly This signal is output after overlaying the AC component DB AC on the D...

Page 510: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 38 Figure 1 39 Wiring Diagram 3 ...

Page 511: ...t new old Toner cartridge Low New High Old SENSOR ON H 5VDC Sensor power ON OFF signal for the Used Cartridge Sensor and Cartridge Sensor High ON Low OFF CARTRIDGE SENSED L 5VDC Toner Cartridge detection signal Low Toner Cartridge High No Toner Cartridge ROTARY HOME SENSED H 5VDC Signal from the Rotary Sensor to detect the Rotary Frame Assembly protrusion DEVELOPER CLUTCH ON L 24VDC Control signal...

Page 512: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 40 Figure 1 40 Wiring Diagram 4 ...

Page 513: ...r Assembly ROTARY MOTOR ON L 5VDC Control signal to turn ON OFF the driving power for the Rotary Motor Assembly ROTARY MOTOR CLOCK Clock signal for the Rotary Motor Assembly A A B B Excitation signal for the Rotary Motor Assembly Table A 25 Excitation Sequence Phase Step 2 phase excitation 1 2 3 4 5 6 7 8 B B A A Table A 26 Rotation Hold by the signals ROTARY MOTOR ON L 5VDC Rotary Motor Hold L 5V...

Page 514: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 42 Figure 1 41 Wiring Diagram 5 ...

Page 515: ... When the number of rotations motor controlled changes 6 25 or more The P H Motor FAIL signal becomes High BTR Cam Solenoid coil resistance 220Ω 10 20 C Table A 27 Wiring Diagram 6 Signal Name Description BTR CAM SOLENOID ON L 24VDC Control signal to turn the BTR Cam Solenoid ON OFF TR0 M SENSED L 5VDC Signal from the TR0 Sensor to detect the TR0 mark on the IBT Belt Assembly P H MOTOR ON L 5VDC C...

Page 516: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 44 Figure 1 42 Wiring Diagram 6 ...

Page 517: ...pply voltage TEMP Signal that holds the Heat Roll surface temperature Analog The temperature is measured by the Thermistor in the Temperature Sensor Assembly The temperature is used to determine the Fuser control temperature FUSER EXIT PAPER SENSED L 5VDC Signal from the Fuser Exit Sensor to detect the paper in the Fuser FUSER ASSEMBLY SENSED L 5VDC Signal to detect the Fuser Assembly connection O...

Page 518: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 46 Figure 1 43 Wiring Diagram 7 ...

Page 519: ...ENOID PUSH ON L 24VDC Control signal to turn ON OFF the Exchange Solenoid in the push direction Face Up ejection EXCHANGE SOLENOID PULL ON L 24VDC Control signal to turn ON OFF the Exchange Solenoid in the pull direction Face Down ejection CLEANER CAM SOLENOID ON L 24VDC Control signal to turn the Cleaner Cam Solenoid ON OFF FUSER CHUTE FAN ON H 24VDC Control signal to turn the Fuser Chute Fan ON ...

Page 520: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 48 Figure 1 44 Wiring Diagram 8 ...

Page 521: ...ption 1 SIZE SWITCH Signal to detect the size of the paper in Tray 1 Analog 1 FEED SOLENOID ON L 24VDC Control signal to turn the Feed Solenoid ON OFF in Tray 1 1 TRAY PAPER SENSED L 5VDC Signal from the Tray No Paper Sensor to detect the paper in Tray 1 High No paper Low Paper in the tray 1 LOW PAPER SENSED L 5VDC Signal from the Low Paper Sensor to detect low paper level in Tray 1 High Enough pa...

Page 522: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 50 Figure 1 45 Wiring Diagram 9 ...

Page 523: ...e white band on the OHP film for color To detect the front back of an OHP film see Section 10 7 3 OHP Side Detection Control REAR OHP WHITE SENSED L 5VDC Signal from the Rear OHP Sensor to detect the white band on the OHP film for color To detect the front back of an OHP film see Section 10 7 3 OHP Side Detection PRE REGISTRATION CLUTCH ON L 24VDC Control signal to turn the Pre Registration Clutch...

Page 524: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 52 Figure 1 46 Wiring Diagram 10 ...

Page 525: ...I Assembly MSI LONG PAPER SENSED L 5VDC Signal from the MSI Long N P Sensor to detect the paper on the MSI Assembly High No paper Low Paper on the MSI Assembly This signal is valid only when the print control specifies the paper size 150mm or longer in the transportation direction MSI SHORT PAPER SENSED L 5VDC Signal from the MSI Short N P Sensor to detect the paper on the MSI Assembly High No pap...

Page 526: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 54 Figure 1 47 Wiring Diagram 11 ...

Page 527: ...o detect the paper on the Exit Lower Assembly EXIT CHUTE SWITCH ON L 5VDC Signal from the Exit Chute Switch to detect open close of the Exit Upper Assembly OFF Open ON Close FULL STACK SENSED L 5VDC Signal from the Full Stack Sensor to detect the Full Stack state in the Top Cover High Not Full Stack Low Full Stack FUSER FAN HALF SPEED H 24VDC Signal to control the rotation of the Fuser Fan Low Fas...

Page 528: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 56 Figure 1 48 Wiring Diagram 12 ...

Page 529: ...8000 Rev B Chapter A APPENDIX A 57 A 3 3 13 Wiring Diagram 13 Table A 35 Wiring Diagram 13 Signal Name Description TEST PRINT ON L 5VDC Setting this signal to LOW connecting to SG activates the internal test print ...

Page 530: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 58 Figure 1 49 Wiring Diagram 13 ...

Page 531: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 59 A 4 Component Layout Figure 1 50 C235MAIN 1 ...

Page 532: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 60 Figure 1 51 C235MAIN 2 ...

Page 533: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 61 A 5 Circuit Diagrams See the following pages for the circuit diagrams for the EPL C8000 ...

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Page 540: ...ted motor drive system Interface Performs the following Sends the signals below to the printer Large Capacity Paper Unit detection signal Paper presence absence detection signal Paper near end detection signal Paper size detection signal Receives the feeding start signal Feeding speed B W 16 ppm A4 LEF 2UP Color 4 ppm A4 LEF 2UP NOTE 2UP mode enables the printer to run 2 pages at a time It is avai...

Page 541: ...acity Paper Unit are the same as for the printer when the unit is connected to the printer A 6 2 Installation Follow the steps below when installing the Large Capacity Paper Unit 1 Turn the printer off and disconnect the power cable and earth cable 2 Lock the 4 casters on the Large Capacity Paper Unit NOTE In the following step be sure to carry the printer by 4 people or more 3 Lift up the printer...

Page 542: ...PL22 1 15 SIZE SWITCH ASSEMBLY 29 PL22 1 16 FEEDER CHUTE SWITCH 30 PL22 1 30 3TRAY FEEDER FRAME Table A 38 Part List Large Capacity Paper Unit 2 2 No PL No Part Name 31 PL22 1 31 FRONT COVER BRACKET 32 PL22 1 32 SHEET CLAMP 33 PL22 1 33 3TRAY FEEDER CLAMP 34 PL22 1 34 FEEDER EME SPRING 35 PL22 2 1 FEEDER HIGH ASSEMBLY with 10 34 40 36 PL22 2 10 FEEDER DRIVE ASSEMBLY with 10 34 37 PL22 2 11 FEEDER ...

Page 543: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 71 A 6 4 Exploded Diagrams Figure A 52 PL20 1 Feeder 1 Figure A 53 PL21 1 Feeder 2 ...

Page 544: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 72 Figure A 54 PL22 1 Feeder 3 Figure A 55 PL22 2 Feeder 4 ...

Page 545: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 73 A 6 5 Wiring Diagrams Figure 1 56 Master Wiring Diagram ...

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