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EPSON EPL-N4000/EPL-N4000+

Chapter 3

Troubleshooting

Rev.B

115

Table 3-34. Black Prints

Step

Actions and Questions

Yes

No

6

MCU PWB REPLACEMENT

1. Replace the MCU PWB.

2. Generate a Grid Test Print.

Is the printed Test Pattern normal?

Problem
solved

Go to step 7

7

ROS REPLACEMENT

1. Replace the ROS Assembly.

2. Generate a Grid Test Print.

Is the printed Test Pattern normal?

Problem
solved

Refer to the
wiring
diagrams
Section 14
and check for
a broken wire
or loose
connection
between
components
in the
Xerographic
sections of
the printer.

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Summary of Contents for EPL-N4000

Page 1: ...EPSON EPL N4000 EPL N4000 Laser Printer SEPG98002 ...

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

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

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

Page 5: ...ere are many situations and circumstances that are dangerous Be aware of these when you are working with the printer Safety Precautions POWER SUPPLY AND ELECTRICAL COMPONENTS Before starting any service procedure turn off the printer and unplug the power cord from the wall outlet If you must service the printer with the power applied be aware of the potential for electrical shock and do all tasks ...

Page 6: ...re performing laser related repair procedures Do not disassemble the printer in such a way that the laser beam can exit the printer engine during a print cycle W A R N I N G Do not try to manually rotate or stop the drive assemblies while the Main Motor is running W A R N I N G This printer uses a laser as part of the printing process The laser beam is a very powerful straight narrow beam of light...

Page 7: ...els are all functioning properly after you have reinstalled or replaced them Warning Caution Labels WARNING and CAUTION labels are stuck on dangerous parts in the printer to make you aware of the potential dangers that are present when you are working with those parts ...

Page 8: ...Revision Status Revision Issued Date Description Rev A November 4 1998 First Release Rev B September 16 1999 Add EPL N400 and revise all chapters for EPL N4000 N4000 ...

Page 9: ... Setting Item and Model dependent 35 Printing Menu 36 User setting items not included in the setting menu 43 Special Operation Functions 44 Maintenance Mode 46 Operation 46 Engine Status Sheet 47 Initialization Process 51 Operating Principles Mechanical Drive 53 Overview 53 Mechanical Drive Component 53 Offset Motor 54 Main Motor and Main Drive Assembly 54 Lift Up Motor 1 and Lift Up Motor 2 55 Mo...

Page 10: ...ormance Problems not indicated by Error Codes 101 Inoperative Printer 101 Erratic Operation 103 Inoperative Control Panel 104 Inoperative Main Drive Assembly 105 Inoperative Paper Feed Drive 107 J1 2 is not displayed when the EP Cartridge is out of toner 108 Inoperative Interlock Switch 108 Inoperative Offset 109 Image Quality FIPs 110 Light Undertoned Prints 111 Blank White 113 Black Prints 114 V...

Page 11: ...l Sensors 156 Removal 156 Installation 156 Tray1 Tray 2 No Paper Sensors 157 Removal 157 Installation 157 Tray 1 Tray 2 Paper Size Sensors 158 Removal 158 Installation 158 Tray 2 Feed Clutch 159 Removal 159 Installation 159 Tray 2 Feeder Assembly 160 Removal 160 Installation 161 Tray2 Take Away Roll Assembly 162 Removal 162 Installation 162 Tray 2 Retard Assembly 163 Removal 163 Installation 163 M...

Page 12: ... 188 Removal 188 Installation 188 Registration Roll Assembly 189 Removal 189 Installation 189 Registration Sensor 190 Installation 190 Installation 190 ROS Assembly 191 Removal 191 Installation 191 EP Cartridge Toner Cartridge 192 Removal 192 Installation 192 BTR Assembly Transfer roller unit 194 Removal 194 Installation 194 Toner Sensor 195 Removal 195 Installation 195 CRU Interlock Switch 196 Re...

Page 13: ...chine Control Unit PWB 220 Removal 220 Installation 221 Controller Board 222 Removal 222 ESS Box 223 Removal 223 Installation 223 Adjustment Maintenance Maintenance 227 Exchange Units and Parts by User 227 Appendix Connector Pin Diagram 229 Pin Alighnment 229 How to use P J location Table and Map 231 Signal Information 239 Board Component Layout 251 C262 Main Board Component 251 Parts List 253 Top...

Page 14: ...te Assembly 273 ROS Assembly 274 Xerography and Development 275 Fuser Assembly 276 Exit Lower Chute 277 Offset Roller 278 Exit Upper Chute Assembly 279 Exit Drive Assembly 280 Main Drive Assembly 281 Fuser Drive Assembly 282 Power Inlet and LVPS 283 HVPS and MCU PWB 284 Controller Assembly 285 ...

Page 15: ... PRODUCTDESCRIPTION ...

Page 16: ...cassette 2 Refer to Table 1 6 Feeding Method on page 10 for details Offset stacking equipped as standard Wide range of options Duplex Module Face up tray Envelope Feeder Multibin Unit Finisher Stapler HDD NOTE Finisher Stapler and HDD are only supported from EPL N4000 Refer to Table 1 2 on page 4 for support range CONTROLLER FEATURES High speed controller employing new CPU 64 bit RISC CPU VR4700 1...

Page 17: ...LSP is written through slot A and inserted in slot C when used When rewriting the firmware of Adobe PS 3 kit for EPL N4000 to Adobe PS 3 kit for EPL N4000 insert in slot A Panel Setting EPL N4000 Available to set the printer mode print menu and device menu individually by each language s environment interface EPL N4000 All modes except the printer mode are changed to the common environment with in...

Page 18: ...ta is spooled in the HDD after the network receiving buffer becomes full Option EPL N4000 EPL N4000 Large capacity Paper Unit O O Duplex Module O O Multibin Unit Mailbox Sorter Multiple Sorter Stacker O O O O O O O O Finisher Stapler Stacker Stapler O Face up Tray O O Envelope Feeder O O Collate printing electronic sorter RAM HDD O O O The RAM sorter is not used when HDD is installed Option EPL N4...

Page 19: ...ing Menu Staple position Support Menu HDD Format Support Menu Adobe PS 3 kit HDD Init The following are added to the printer message Finisher Error yyy Can tAdjustFnshrTray Finisher N Full Install Staple Crtg Cover E Open Cover F Open Cover G Open Cover H Open Staple Cover Open Finisher Not Connect Stapler Supply Can t Staple Warning Staple Align Warning Check Stapler Warning Adobe PS 3 kit Hard D...

Page 20: ...Test Menu AUX Config to Aux Menu Get IP address to Aux Menu IP Byte to Aux Menu SM Byte to Aux Menu GW Byte to Aux Menu NetWare to Aux Menu Apple Talk to Aux Menu NetBEUI to Aux Menu AUX Init to Aux Menu ADDED NETWORK PROTOCOL ENPC EPSON Network Peripheral Control Protocol protocol was added to the built in network Epson Net Web Manager WinAssist and MacAssist were added to the utilities packed wi...

Page 21: ...oice of Get IP Address in the Network Menu was changed to Auto Default values of IP Address Subnet Mask and Default Gateway in the Network Menu were changed The Support Menu was added Total Counter Clear was moved after Fuser Counter Clear in the Maintenance Menu MODIFIED APPLE TALK ENTITY TYPE If Emulation is fixed for a certain language the language s Entity Type and EPSONPAGE4 are returned ...

Page 22: ...nted and removed only when power is off Slot A Adobe PS 3 kit or option fonts Slot B Adobe PS 3 kit or option fonts Slot C NLSP fonts Only one Adobe PS 3 kit can be mounted HOST INTERFACES Host Interfaces Standard Parallel IEEE 1284 compliant bidirectional B type connector Compatibility Nibble ECP Ethernet 10 BaseT 100BaseTX Option Type B I F slot 1 slot PRINTER SETTING By EJL PJL HTTP SNMP and EN...

Page 23: ...oner Resolution 600 dpi Printing Speed Table 1 4 Printing Speed PPM Note a is for custom size unfixed form b High large Capacity Feeder is optional c L means long edge first setting d P means short edge first setting One Side Printing Duplex Printing Size C1 C2 MP Traya High Capacity Feederd MP Tray High Capacity Feeder C3 C4 C5 C1 C2 C3 C4 C5 A4 LC 40 38 32 16 38 37 35 28 28 27 26 24 25 A3 Pd 20 ...

Page 24: ... C2 C3 C4 C5 A4 La 10 0 10 8 TBD 11 1 12 0 13 2 14 6 15 4 TBD 15 7 16 6 17 8 LT L 10 0 10 8 TBD 11 1 12 0 13 2 14 6 15 4 TBD 15 7 16 6 17 8 Paper Feeding Method Volume sheet Paper Size Paper thickness g m2 Standard MP Multi purpose tray 50a Standard size paper A3 B4 F4 Ledger Legal Government Legal Executive Custom size paper Normal Paper 60 90 5mm high A4 B5 A5 Labels OHP Thick Paper Letter Gover...

Page 25: ...P P c Od A4 210 x 297 L L L L L O A5 148 x 210 L L B4 257 x 364 P P P P O B5 182 x 257 L L L L L O B LD 279 4 x 431 8 P P P P O LG 215 9 x 355 6 P P P P O GLG 215 9 x 330 2 P P P P O LT 215 9 x 279 4 L L L L L O Normal Paper GLT 215 9 x 266 7 L O EXE 184 1 x 266 7 L L L L L O HLT 139 7 x 215 9 L L F4 210 x 330 P O Special Paper OHP A4 LT L L L L L Label A4 LT L L L L L Paper Eject Type Volume shee...

Page 26: ... than 0 6 A 24V Maximum Less than 2 0 A 24V Average consumption electricity Less than 0 2 A 5V Duplex Optional Average consumption electricity Less than 0 5 A 24 V Less than 0 1 A 5V AC Line Noise Pulse width 50 to 1000 ns Pulse polarity Repetition Asynchronous Modes Common Normal Voltage 1KV parts must be able to withstand 2KV without damage G u a r a n t e e d p r i n t a r e a 4 m m 4 m m 4 m m...

Page 27: ...rmal paper is used This measurement does not apply when boundary face is generated Boundary face is generated when the additional paper is added to paper already set Printing position reliability Table 1 12 Printing position Skew See the figure on next page Table 1 13 Skew NOTE The measurements for MP Tray are based on one side printing Primary Chassis Primary Secondary 100 120V AC1000V AC2000V 20...

Page 28: ...CHAPTER 1 Product Description Rev B 14 Figure 1 3 Skew Product Life 1500 000 sheets or 5 years in use whichever comes first Maintenance MTTR Average less than 40 minutes G u a r a n t e e d p r i n t a r e a d B o t t o m a c b ...

Page 29: ...fect on human health In compliance with OSHA Ozone In compliance with UL478 5th Edition Materials In compliance with Swiss environment protection law no CdS content Model Applicable Standard 120V UL1950 2nd Edition CSA 22 2 No 950 M95 by UL cUL 200V series IEC950 2nd Edition with amendment 1 1995 CE Directive Model Applicable Standard 120V FDA21 CFR Chapter1 Subchapter j Section 1010 1040 200V ser...

Page 30: ...00m 10000ft Transportation 0 to 15000m 49200ft 1 3 7 4 Vibration Tolerance Vibration 5 to 100 Hz Acceleration 0 7G Direction Three directions X Y Z Time 50 minutes in each direction Item Condition Temperature 0 to 32 C Humidity 15 to 85 RH without condensation Air Pressure Altitude Less than 760 hPa Less than 2500m Item Normal Extreme Temperature 0 to 35 C Low Temp 10 to 0 C High Temp 35 to 40 C H...

Page 31: ...cription Rev B 17 1 3 8 External Dimension and weight Exterior dimension 642 mm W x 523 mm D x 486 mm H No optional parts Figure 1 4 Exterior Dimension No optional parts Figure 1 5 Exterior Dimension with Mailbox Duplex unit and High Capacity Feeder ...

Page 32: ...s printing at A4 continuous printing landscape setting This OPC drum life is indicated by minute s calculated from the turn on the engine status sheet How to distinguish Method to distinguish ID on the cartridge Type Check OEM maker and if it is for Japan or for abroad 1 3 11 Configuration In the EPL N4000 controller the following settings can be configured The settings are made with jumper resist...

Page 33: ... follows The information is shown below including line breaks but the actual data is a continuous character string with no line break characters The CMD items are not in order The CID MODE and STATUS items are not included The DES item contents are MFG and MDL connected by a space XXXX mentions products name When Adobe PS 3 kit is not installed MFG EPSON CMD PJL ESCPL2 ESCP9 PRPXL24 01 PCL HPGL2 0...

Page 34: ...PRPXL24 01 PCL HPGL2 01 ESCPAGE 04 MDL CLS PRINTER DES CID 1 3 12 2 Ethernet Interface Specification Interface type 10BaseT 100BaseTX Half Duplex Full Duplex Automatically switched when power is turned on Communication protocol IPX SPX IPX SPX NCP RIP SAP PrintServer RemotePrinter NDS SNMP ENPC NetBIOS SMB NetBEUI TCP IP IP UDP TCP LPR FTP TELNET ARP ICMP RARP BOOTP DHCP SNMP HTTP SNMP ENPC Apple ...

Page 35: ...wn in the table When Emulation is fixed Entity Type of default Emulation and EPSONPAGE4 are returned Table 1 23 Emulation Entity Type NOTE 1 Added with Adobe PS 3 kit is installed 2 RCC and DIAG cannot be selected by users Pin Signal I O 1 Tx O 2 Tx O 3 Rx I 4 N C 5 N C 6 Rx I 7 N C 8 N C Emulation Emulation Type Entity Type PS 1 POSTSCRIPT 00 1 LaserWriter 1 ESC Page ESCPAGE 04 LJ4 PCL5E 00 RCC 2...

Page 36: ...d DIAG cannot be selected by users The cassette paper size detection jumper setting is not affected Emulation Type When emulation is Auto Adobe PS 3 kit not started AUTO Emulation Type 1 2 3 Adobe PS 3 kit started EJL POSTSCRIPT 00 other Emulation Type 1 2 3 When emulation is fixed EJL Default Emulation Type other Emulation Type 1 2 3 Entity Type When Emulation is Auto As shown in the table When E...

Page 37: ...One Touch Setting Mode 1 LED green On indicates that One Touch setting mode 1 is selected 4 items can be set Paper Source Selection Paper size Manual Feed and Orientation One Touch Setting Mode 2 LED green On indicates that One Touch setting mode 2 is selected 4 items can be set RITech Copies MP Tray paper size and Toner Save Mode Select Type Mode LED green On indicates that the printer is in the ...

Page 38: ...setting item by pressing this switch Value selection switch The printer goes to the previous setting item by pressing this switch Enter switch By pressing this button the printer goes to status sheet in the test printing menu Reset Continue The printer stops printing or resets by pressing Alt and Continue switches After displaying Reset on the display pressing both switches for 5 seconds lead to R...

Page 39: ...tion indicates the next setting value 2 Item selection Goes to the previous setting mode Goes to the previous setting mode Item selection next setting item is displayed 2 Paper size selection No of Copy selection indicates the next setting values Alt item selection Invalid Invalid Item selection previous setting item is displayed 2 Paper size selection No of Copy selection indicates the previous s...

Page 40: ...sher Stapler is added to Other Options HDD Hard Disk XGB is added to Other Options NLSP Font ROM The option product name is added to Other Options Font Macro ROM The option product name is added to Other Options When Adobe PS 3 kit is installed Adobe PS 3 kit Menu Error Sheet is added to Default Settings Adobe PostScript3 is added to Installed Emulation Version of Adobe PS 3 kit is added to Firmwa...

Page 41: ...an then be executed from EPL N4000 Any other menu has been set or executed before executing this menu shift to a printable state before execution 4 Appears only when Adobe PS 3 kit is installed 5 Not displayed on the panel Not printed on the status sheet Can be executed with EJL 6 Appears only when Type B interface card is installed Menu Item Value Test Menu Status sheet Network Status Sheet 2 AUX...

Page 42: ...and the printer is in Mailbox mode and can then be selected 11 Appears only when the multibin unit is installed and the printer is in Sorter or MultiSort mode can then be selected 12 Not displayed on the panel Not printed on the status sheet Can be set with EJL PJL and so forth Not saved in NVRAM 13 Only LJ4 mode and ESC Page mode are valid 14 Appears only when the optional duplex unit is installe...

Page 43: ...he Large Capacity Paper Unit is installed and can then be selected 11 Appears only when the Duplex Unit is installed Menu Item Value Tray Menu MP Mode MP Tray Size 1 ENV Tray size 4 LC1 Size 5 LC2 Size 5 LC3 Size 8 LC4 Size 8 LC5 Size 8 MP Type 1 ENV Tray 9 LC1 Type LC2 Type LC3 Type 10 LC4 Type 10 LC5 Type 10 Normal Last Added in EPL N4000 A4 2 A3 A5 B4 LT B5 B HLT LGL GLT GLG EXE F4 IB5 C5 DL C1...

Page 44: ...on again If they are changed on the panel or with EJL be sure to perform warm boot or turn on the power again To change more than one of these change more than one of them perform warm boot or turn on the power again once at the end 8 Appears only when the multibin unit is installed and can then be selected When the setting is changed to terminate the panel setting mode warm boot is performed Afte...

Page 45: ... mode the before change setting value is printed Before setting or executing menus other than these items shift to a printable state Menu Item Value Network Menu Network config 1 Get IPAddress 2 3 IP Byte 1 2 3 IP Byte 2 2 3 IP Byte 3 2 3 IP Byte 4 2 3 SM Byte 1 2 3 SM Byte 2 2 3 SM Byte 3 2 3 SM Byte 4 2 3 GW Byte 1 2 3 GW Byte 2 2 3 GW Byte 3 2 3 GW Byte 4 2 3 Buffer Size 3 No Yes added in EPL N...

Page 46: ...10 Factory default setting when the A4 LT configuration is LT 11 Factory default setting when the A4 LT configuration is A4 Menu Item Value ESC Page Menu Auto CR Auto FF CR Function LF Function FF Function Error Code Avoid Error PGI On Off On Off CR CR LF LF CR LF FF CR FF Ignore Space Off On On Off added in EPL N4000 LJ4 Menu Font Source Font Number Pitch Height SymSet Form Source SymSet Dest Sym...

Page 47: ...t Square Triangular Round Mitered Miteredbeveled Triangular Round Beveled None 0 05 0 35 5 00mm step 0 05mm 0 05 0 35 5 00mm step 0 05mm 0 05 0 35 5 00mm step 0 05mm 0 05 0 35 5 00mm step 0 05mm 0 05 0 35 5 00mm step 0 05mm 0 05 0 35 5 00mm step 0 05mm 0 05 0 35 5 00mm step 0 05mm Adobe PS 3 kit Menu 2 Error Sheet 2 Off On ESCP2 Menu Font Pitch Condensed T Margin Text CGTable Country Courier Prest...

Page 48: ... Sans serif Script Orator S OCR A OCR B 10cpi 12cpi 15cpi Prop Off On 0 40 0 50 1 50 inch step 0 05 inch 62 1 66 2 1 to available Max 99 Lines PcUSA Italic PcMultiln PcPortugue PcCanFrenc PcNordic PcTurkish2 PcE Europe BpBRASCII BpAbicomp BpAbicomp 8859 15ISO PcEur858 USA France Germany UK Denmark Sweden Italy Spain1 Japan Norway Denmark2 Spain2 LatinAmeric On Off Off On Dark Light BarCode 0 φ 123...

Page 49: ... The paper sizes which can be set are limited and MON C10 DL and C5 only are supported The ENV tray also has a paper width sensor and its processing is the same as for the MP tray TRAY MENU MP TYPE LC1 TYPE LC5 TYPE The type of paper placed on each paper feed unit is set When Paper Source Auto used to select a unit also matching the paper type from the paper feed units which match the specified pa...

Page 50: ...lowest priority Normal MP Tray LC1 Last LC1 LC2 MP Tray This setting becomes valid after a warm boot 1 4 2 4 Printing Menu PRINTING MENU OUT BIN Out Bin items which can be selected in accordance with the settings of Face up Enable Multibin and Finisher in the Set Up Menu are as follows Table 1 39 Table 1 40 If Stacker is selected when the Multibin setting is Stacker the 1500 sheet large capacity e...

Page 51: ...ce down For the first time after the power is turned on the program looks for a paper eject full bin staring from Multibin 1 and begins paper ejection from a bin preceding the full bin For the second time and subsequent paper ejection begins from the last paper ejected bin After there is not any full bin paper ejection begins from Multibin 10 Whether or not Face down is used when the last bin beco...

Page 52: ...0 sheets The above counted value and the last paper ejected bin are not be stored in NVRAM The number of sheets and the number of copies ejected are reset when the power is turned on The number of sheets and the number of copies ejected are reset with no paper detection Users should remove all paper from the stacker in advance when printing a large quantity of copies Table 1 41 PRINTING MENU QUANT...

Page 53: ...lid and paper is ejected to the center This is the same as when Size or Type of the paper fed unit are those aforementioned PRINTING MENU STAPLE Designate stapling None No stapling Single Single stapling Double Central double stapling 0 PRINTING MENU STAPLE POSITION Designate the staple position as a logic position L Left hand side R Right hand side used for right handed binding in Japan This is n...

Page 54: ...al staple designation time As a result the opposite position is stapled When Stacker becomes full paper is ejected to Face down in the same direction as EPL N4000 Table 1 42 NOTE Rotation The print image is rotated 180 degrees Front Stapling at the front of the compile tray Double Double stapling at the center of the compile tray Rear Stapling at the rear of the compile tray Orientation Binding St...

Page 55: ...Menu is deleted from the menu and the printer is brought into usual mode The support mode is a mode for users to set and execute the items which are not usually set HDD initialization etc Support Menu HDD Format Press the setting execution switch and HDD initialization formatting will start Reboot warm boot after initialization is finished After rebooting the support mode is cleared returning to u...

Page 56: ...cutes this operation only once when the duplex unit is replaced Duplex indicated on the engine status sheet become zero FD Counter Clear Maintenance Menu 1 2 The serviceman executes this operation only once when around Face down is replaced Face down indicated on the engine status sheet become zero FU Counter Clear Maintenance Menu 1 2 The serviceman executes this operation only once when around F...

Page 57: ...D 32 byte character string undefined EJL MDL of Device ID 32 byte character string undefined EJL DES of Device ID 32 byte character string undefined EJL CID of Device ID 32 byte character string undefined EJL Name of Mailbin1 24 bytes of data Null EJL MIB Name of Mailbin2 24 bytes of data Null EJL MIB Name of Mailbin3 24 bytes of data Null EJL MIB Name of Mailbin4 24 bytes of data Null EJL MIB Nam...

Page 58: ... After that the printer performs warm boot and returns to the normal state Operation Turn on the power pressing Continue switch Forced erasing of Flash ROM Module This operation erases the content of the flash ROM module which is connected to A slot DIMM ROM Module on the main board Operation Turn on the power pressing Alt switch Item switch Value switch and Enter switch Erasing starts after Erasi...

Page 59: ...h is inserted to code ROM socket Operation Turn the power on pressing On Line switch Alt switch and Enter switch By pressing Enter switch at the point that LCD displays DIMM COPY MODE the printer copies after erasing Flash ROM After that the printer performs warm boot and returns to the normal condition Maintenance Mode Operation Power on the printer while pressing On Line switch Form Feed switch ...

Page 60: ... becomes 0 and 1 is added when the roller is exchanged TR Counter Clear This function is performed when the transfer roller is exchanged TR counter on the engine status sheet becomes 0 and 1 is added when the transfer roller is changed DM Counter Clear This function is performed when the duples unit is exchanged Duples on the engine status sheet becomes 0 FD Counter Clear This function is performe...

Page 61: ...tal count value minus value may be indicated by the total counter clear Fuser change This indicates how many times the Fuser is exchanged and 1 is added when performing Fuser Counter Clear at the Maintenance Menu Input LC n Counter This indicates how many papers are fed from LC n n tray number after LCn Counter Clear is performed at the maintenance menu This value is red from the engine side MP Co...

Page 62: ... side Staple This indicates how many times staple after performing Staple Counter Clear at the maintenance menu Print 3 The printing volume whose printing occupancy is less than 3 and the value is counted at the controller side 30 The printing volume whose printing occupancy duty exceeds 3 and the value is counted at the controller side Over 30 The printing volume whose printing occupancy duty exc...

Page 63: ...ize Toner cartridge ID error Toner cartridge R W error and MCU Version Up If the error is recorded in the same number of the printing value the new error will not be recorded Table 1 44 Information Control and its Method Name of Information Place Range Count Condition Clear Condition Total Counter Mechanical Controller 100000 times When printing Panel Jam Counter Controller 100000 times When Jam o...

Page 64: ...e Controller 150000 times When executing EEPROM Initialization 3 Controller 150000 pages When Printing EEPROM Initialization 30 Controller 150000 pages When Printing EEPROM Initialization Over 30 Controller 150000 pages When Printing EEPROM Initialization A3 B Controller 150000 pages When Printing EEPROM Initialization A4 LT Controller 150000 pages When Printing EEPROM Initialization A5 HLT Contro...

Page 65: ... switch Processing Cancel the print request Cancel the buffered data from the current port before the initialization Canceling the error Warm boot processing This initialization process stops printing for all interfaces and perform initialization until right after the power is turned on but does not perform various checks Operation While pressing ALT switch press Continue switch until Reset All is...

Page 66: ... OPERATING PRINCIPLES ...

Page 67: ...e Main Drive Motor turns the Main Drive Assembly gears The Drive Assembly provides drive to the Feed Clutches the Registration Clutch the Fuser the Drum and BTR and the Exit Clutches Lift Up Motors supply drive to each paper tray raising the Bottom Plate of each tray so the paper stack contacts the Feed Rolls The Offset Motor provides drive to the Offset Rolls Figure 2 1 Mechanical Drive 2 1 2 Mec...

Page 68: ...es mechanical drive The Main Drive Assembly gears transmit the motor drive to Feed Clutch 1 Feed Clutch 2 and the MSI Feed Clutch At paper feed the MCU PWB actuates a Feed Clutch which in turn transmits drive to the appropriate Feed Rolls The Main Drive Assembly gears transmit the motor drive to the Registration Clutch At a specific point in each print cycle the MCU PWB actuates the Registration C...

Page 69: ...e Lift Up Motor 3 Then the motor rotates the square shaft and the square shaft shifts the attached metal tongue which in turn raises the tray Bottom Plate which raises the paper stack 4 As the paper stack raises it pushes up on the No Paper Actuator which in turn switches the No Paper Sensor Figure 2 3 Lift Up Mechanism Motor Control 2 1 2 4 Motor Control The MCU PWB provides power for and control...

Page 70: ... the Registration Roll The Retard Rolls in Tray 1 and Tray 2 or the Retard Pad in the MSI made sure that only one sheet of paper is fed If the paper was fed from Tray 2 or the MSI the Take Away Roll drives the paper to the Registration Roll The Registration Roll aligns the lead edge of the paper with the lead edge of the image on the drum The Registration Roll then drives the paper into the Drum B...

Page 71: ...evel of paper in the MSI tray MSI Paper Size Sensor monitors the size of paper in the Tray MSI Feed Clutch transmits drive to the Feed Roll and Nudger Roll Nudger Roll drives the top sheet of paper into the Feed Roll Feed Roll drives the top sheet of paper out of the MSI tray Retard Pad prevents multiple sheet feed Take Away Roll and Pinch Roll continue to drive the sheet of paper out of the MSI T...

Page 72: ...e to the Exit Roll and on to the Duplex Module Exit Gate Solenoid controls the Exit Gate to toggle the paper path between the Output Tray or the Exit Roll and on to the Face Up Tray or Duplex Module Offset Motor and Offset Bracket moves the Offset Roll back and forth so paper delivered to the Output Tray will stack offset Exit Roll and Pinch Roll drive the sheet of paper to either the Face Up Outp...

Page 73: ...Main Drive Assembly to the Fuser Assembly 2 2 3 Mechanical drive for paper fed from the MSI The Main Motor provides mechanical drive for MSI feed Multi Sheet Inserter The Drive Assembly transmits drive to the MSI Feed Clutch The MSI Feed Roll and Nudger Roll are attached to the MSI Clutch At paper feed the MCU switches on the MSI Feed Clutch The MSI Feed Clutch transmits drive to the Feed Roll whi...

Page 74: ... of paper out of the MSI Tray Tray 1 Feed Clutch transmits drive to the Take Away Roll The Take Away Roll and Pinch Roll drive the sheet of paper into the Registration Roll Figure 2 10 Tray 1 Drive Mechanism 2 2 5 Mechanical Drive for Paper Fed from Tray2 The Main Motor provides mechanical drive for Tray 2 feed The Drive Assembly transmits drive to Tray 2 Feed Clutch Tray 2 Feed Roll and Nudger Ro...

Page 75: ...heet of paper into the Drum BTR area Figure 2 12 Registration Roll Drive Mechanism 2 2 7 Mechanical Drive for the Drum and BTR The Main Motor provides mechanical drive for the Drum and BTR The Main Drive Assembly transmits drive to the Drum A shutter covers and protects the Drum surface When the Left Cover is closed a mechanical link opens the Shutter When the Left Cover is open the link closes th...

Page 76: ... transmits drive to the Fuser Heat Roll Figure 2 14 Fuser Drive Mechanism 2 2 9 Mechanical Drive for Exit Drive The Main Motor provides mechanical drive for the Offset and Exit Rolls The Main Drive Assembly transmits drive to the Inverter CW Clutch and to the Inverter CCW Clutch At a specific point in the print cycle the MCU switches on the CW Clutch The CW Clutch transmits forward drive to the Of...

Page 77: ...the printer taking the Offset Roll with it The Offset Rolls drive the next sheet of paper slightly offset from the last sheet into the Face Down Output Tray Figure 2 16 Offset Drive Mechanism 2 2 11 Paper Path Component Control The logic on the MCU PWB controls the Paper Path components Sensors along the paper path monitor the movement of each sheet of paper and send information back to the MCU Th...

Page 78: ...erates a 5 milliwatt class 3B laser beam Circuity on the LD PWB maintains the laser output power at a constant level The LD PWB is electrically connected to the MCU PWB and to the C262 Main Board The MCU provides power and control circuitry C262 Main Board provides the video data input from the host computer Corrective Lenses and Angled Mirror Four lenses two small one medium and one wide and an a...

Page 79: ...d another two lenses focus the laser beam onto the rotating Polygon Mirror The Polygon Mirror has twelve mirrored sides and rotates at approximately 15 000 RPM The Polygon Mirror reflects the laser beam back through the two lenses and onto the Angled Mirror The movement of the Polygon Mirror reflects the laser beam in a sweeping motion from side to side across the Angled Mirror with one complete s...

Page 80: ...er Diode PWB C262 main board switches the laser diode on and off according to the image data being sent from C262 main board When the data signals for a black pixel C262 main board rapidly switches the Laser Diode on and off The MCU PWB provides the 5VDC needed to drive the Laser Diode The CRU Interlock Switch cuts 5VDC to the Laser Diode when the EP Cartridge is not in place in the printer The MC...

Page 81: ...n the Left Cover is open or the EP Cartridge is removed SW1 and SW2 cut 24VDC out of the MCU PWB An electrical jack at the end of the EP Cartridge completes the 5VDC circuit for CRU Interlock switches SW1 and SW2 When the EP Cartridge is removed 5VDC to the Laser Diode is cut W A R N I N G Never run the printer with the covers open or removed the Main Interlock Switch actuated and the CRU Interloc...

Page 82: ... points to positive points Develop Attaches dry toner to the positive points of the drum Transfer Transfers the dry toner image from the drum to a piece of paper Detack Strips the piece of paper along with the dry toner image on the paper surface from the drum Clean Cleans any residual toner from the surface of the drum and prepares the drum for the next print cycle Discharge Cleans any residual e...

Page 83: ...toconductive material that holds an electrical charge as long as the drum remains in darkness Light striking the drum discharges the surface charge The BCR is a conductive roll that is positioned slightly above the surface of the drum The HVPS supplies the BCR with two voltages a negative DC charge voltage and an AC discharge voltage that is used for electrically cleaning the drum Figure 2 25 Char...

Page 84: ...and to print a black pixel the laser switches on long enough to shine onto the drum at a single pixel point That point is now discharged and slightly less negative than the surrounding negative charge For the sake of simplicity the less negative areas are considered positive This discharge no discharge process creates an invisible electrostatic image on the surface of the drum This image is called...

Page 85: ...e toner on the Magnetic Roll making toner transfer easier The Magnetic Roll maintains a negative DC electrical potential Negative charged areas of the drum have a lower electrical potential or higher relative negative value than the Magnetic Roll Discharged areas of the drum have a higher electrical potential or lower relative negative value than the Magnetic Roll A discharged point on the surface...

Page 86: ... the relative electrical differences between the negative electrical charge of the inner conductive layer of the drum and the positive electrical charge of the paper Figure 2 28 Transfer 2 4 5 Detack After the toner image transfers to the surface of the paper the Detack Saw a thin strip of metal that resembles a saw blade applies a low voltage negative charge to the back of the paper to neutralize...

Page 87: ...er is then transported to the output tray Figure 2 30 Fusing 2 4 7 Clean The Cleaning Blade removes any toner that remains on the drum after the transfer process The toner that the Cleaning Blade removes is collected inside the sealed EP Cartridge Toner that is reclaimed from the drum is not reused by the EP Cartridge Figure 2 31 Cleaning Sr1339x C H E C K P O I N T Toner collected by cleaning is ...

Page 88: ...00 EPL N4000 Chapter 2 Operating Principles Rev B 74 2 5 Print Sequence Paper Feeding from Tray1 Figure 2 32 Paper Feeding from Tray1 From Registration Roll to BTR Drum Figure 2 33 From Registration Roll to BTR Drum ...

Page 89: ...EPSON EPL N4000 EPL N4000 Chapter 2 Operating Principles Rev B 75 Fusing and Paper Eject Figure 2 34 Fusing and Paper Eject Paper Feed from Tray2 Figure 2 35 Paper Feeding from Tray 2 ...

Page 90: ...ods The Low Voltage Power Supply PWB or LVPS converts the 110VAC to regulated 24VDC and 5VDC voltages The LVPS sends these voltages to the MCU PWB The MCU uses the voltages for internal processing and for printer component operation The MCU also sends 24VDC to the High Voltage Power Supply PWB The High Voltage Power Supply PWB or HVPS converts the 24VDC received from the MCU PWB to the high voltag...

Page 91: ...ponents through out the printer including 24VDC to the High Voltage Power Supply HVPS Interlock Switches SW1 and SW2 Used as a safety measure The main interlock circuit for this printer is actually two separated switches wired in series with the MCU PWB When the EP Cartridge is in place Interlock Switch SW1 is closed When the Left Front Cover is closed Interlock Switch SW2 is closed With both swit...

Page 92: ...EPSON EPL N4000 EPL N4000 Chapter 2 Operating Principles Rev B 78 Figure 2 37 Power Supply Component ...

Page 93: ...r serial communications interfaces an A D converter a D A converter I O ports and a DMA controller The MCU PWB provides the logic and information processing that is necessary for the printer to function Every electrical component within the printer is connected either directly or indirectly to the MCU PWB Sensors in the printer send printer status information to the MCU The MCU processes that info...

Page 94: ...EPSON EPL N4000 EPL N4000 Chapter 2 Operating Principles Rev B 80 Figure 2 39 Printer Control Component Sr1310xa ...

Page 95: ...ugh the C262 Main Board The interface between the print engine and the host computer The ESS processes the raw video data sent by the host computer Control Panel Connected to C262 Main Board the Control Panel displays status information send from the MCU PWB and C262 Main Board AC Driver PWB Switches 110VAC to the two Fuser Heat Rods Fuser temperature sensors are connected to the AC Drive PWB The ...

Page 96: ...ion Finisher Provides 5VDC 24VDC and command and status lines to the Finisher option Envelope Feeder Provides 5VDC 24VDC and command and status lines to the Envelope Feeder option Cabinet Drive PWB Provides 5VDC 24VDC and command and status lines to the High Capacity Feeder option Size Sensor 1 Monitors the size of the paper that is loaded in Feeder 1 The Actuator Assembly located at the rear of t...

Page 97: ...nal to the MCU PWB When the last sheet of paper is fed out of the Paper Tray the No Paper Actuator drops through a cutout in the Bottom Plate The Actuator then blocks the Sensor and the Sensor sends a no paper signal to the MCU PWB Figure 2 41 No Paper Sensor Level 1 Sensor Monitors whether or not Tray 1 is installed Installing the Tray pushes the Link Stopper out which in turn lowers the Feed Rol...

Page 98: ...p Motor 1 Take Away Roll Sensor Monitors the paper travel at the Take Away Roll Interlock Switches 1 and 2 Monitors the CRU position Switch 1 and Left Cover Interlock Switch 2 on Feeder 1 Feed Clutch 2 Transmits Main Motor drive to the Tray 2 Feed Rolls No Paper Sensor 2 Monitors the paper level in Feeder 2 Functions identical to No Paper Sensor 1 Level 2 Sensor Monitors whether or not Tray 2 is i...

Page 99: ...on is determined when the printer is designed Figure 2 44 Input from Sensors Processing input information Logic on the MCU compares the input information with the timing and reference values that are stored in ROM and NVRAM on the PWB Example below The Fuser Thermistor monitors the temperature of the Fuser Heat Roll and sends the current temperature value to the AC Drive PWB The AC Drive PWB relay...

Page 100: ...sheet of paper out of the paper tray and down the paper path As the sheet of paper travels down the paper path it strikes the Registration Sensor The Sensor sends a signal to the MCU PWB telling it that the paper has arrived The MCU takes the elapsed time from when it actuated the Feed Clutch to the time it received the signal from the Registration Sensor and compares that time with the set time o...

Page 101: ...below shows specifications on the controller Table 2 1 Specification on the Controller Type Name Location Function CPU R4700 IC1 CPU controls the controller and is driven by 64 bit interior clock 133 MHz ASIC E05B51 IC2 Memory control and DMA control E05B52 IC23 Connecting E05B51 and E05B40 E05B40 IC26 Control Panel Host I F control E05B56 IC32 PGI RIT Engine I F Toner Counter Memory Mask ROM IC10...

Page 102: ... N4000 Chapter 2 Operating Principles Rev B 88 Block diagram of C262 Main Board is shown below Figure 2 47 Block Diagram of C262 Main Board E05B51 E05B52 E05B40 E05B56 Cooling Fan Network I F Pattern only Pattern o ch201 ...

Page 103: ... TROUBLESHOOTING ...

Page 104: ...s in the test prints 5 Make note of any mechanical or electrical abnormalities present 6 Make note of any unusual noise or smell coming from the printer 2 Inspect and Clean the printer 1 Switch Off printer power 2 Disconnect the AC power cord from the wall outlet 3 Remove the EP Cartridge and shield it from strong light 4 Inspect the printer interior and remove any foreign matter such as paper cli...

Page 105: ...ation problem or print image problem 5 Follow the instructions presented in the FIP 6 Voltage and resistance values presented in the FIPs are an approximation Actual readings may vary from the stated values 7 Primary FIPs may direct you to a Secondary FIP In the FIP Flowchart the relationship between Primary and Secondary FIPs is represented with dotted lines Block Procedure 3 Find the cause of th...

Page 106: ...r Assembly MCU PWB ESS PWB and LVPS PWB 3 Unless indicated otherwise the instruction switch ON main power means for you to switch ON printer power and let the printer proceed through power on diagnostics and warm up until it is on line and ready to print 4 Conventions used to represent connectors P J XX means a Plug and its corresponding Jack are connected PXX means a Plug is disconnected Unless t...

Page 107: ...may be difficult or impossible to read on the average multimeter 10 FIPs may instruct you to remove or replace a component Refer to Section 10 Removal and Replacement Procedures for information on how to remove and reinstall a component 11 When a FIP instructs you to replace a component and that component is part of a larger assembly you should replace the entire assembly Figure 3 1 FIP Flowchart ...

Page 108: ...tacker Tray2 Upper Limit 523 Finisher Stacker Tray2 Upper Limit 531 Finisher Stacker Tray1 Lower Limit 532 Finisher Stacker Tray2 Lower Limit Message Classification Finisher 533 Finisher Stacker Tray3 Lower Limit 541 Finisher Lower Safety 542 Finisher Stacker Lower Safety 581 Finisher Eject Clamp 582 Finisher Tamper Home 583 Finisher Stacker Offset 584 Finisher Stacker Tray ID 585 Finisher Stacker...

Page 109: ...n Error F Cover open Error G Cover open Error H Cover open Error Set MP Tray Error Set ENV Tray Error Finisher is removed Error Manual Feed ssss ttt Error Invalid Size LC1 Error Invalid Size LC2 Error Invalid Size LC3 Error Invalid Size LC4 Error Invalid Size LC5 Error Turn Paper LC1 Error Turn Papger LC2 Error Turn Papger LC3 Error Can t print Duplex Error Paper Out ssss ttt Error Toner Oui Error...

Page 110: ...urn on the power again If this does not recover the error there is a possibility of malfunction Jam XXXX Error Explanation Paper Jam occurred at the indicated part If several parts are indicated it means there are possibility of paper jam around that parts and does not mean the number of the jammed paper Since the engine of this printer does not detect the paper size error if the actually fed pape...

Page 111: ...opened when the paper jam error occurs the ENV might be left uninstalled Or non ENV tray is installed Remedy Install the ENV tray The error is cancelled automatically Manual Feed ssss ttt Error Explanation Although there is no setting menu on the panel when the manual feed mode is selected by ESC Page command the printer indicates appointed paper size and feeding device before printing Remedy Pres...

Page 112: ...ror Explanation Finisher or HDD which can not be used for this printer is installed in the printer Remedy Turn off the power and remove the corresponding optional device In case of the options which are supported for this printer perform the version up of the firmware Collate was disabled Warning Explanation Due to the lack of memory all necessary data becomes unable to be stored as a result appoi...

Page 113: ...fined interrupt 0081 CPU Error TLB modification exception 0082 CPU Error TLB miss exception Load Fetch 0083 CPU Error TLB miss exception Store 0084 CPU Error Address Error Exception Load Fetch 0085 CPU Error Address Error Exception Store 0086 CPU Error Bus error Exception Fetch 0087 CPU Error Bus error Exception Load Fetch 0088 CPU Error SYSCALL exception 0089 CPU Error Break exception 0090 CPU Er...

Page 114: ...r resetting CPU press Enter switch twice Error Code ffff Explanation 1010 Verify Error 1020 RAM Error Slot 0 1021 RAM Error Slot 1 1022 RAM Error Slot 2 1100 RAM checksum error bit 0 15 font 1101 RAM checksum error bit 16 31 program 1120 RAM checksum error bit 0 7 program 1121 RAM checksum error bit 8 15 program 1122 RAM checksum error bit 16 23 program 1123 ROM checksum error bit 24 31 program 11...

Page 115: ...itting on a level and stable surface 12 Is recommended paper stock being used in the printer 13 Does the customer use the printer as instructed in the User Manual 14 Are consumables such as the Print Cartridge EP Cartridge replaced at recommended intervals 3 3 1 Inoperative Printer Even when the main switch is turned on LED on the Control Panel is not turned on LCD is still blank and Fuser Fan doe...

Page 116: ... step 6 5 LVPS 24VDC CHECK Measure the voltage between J400 5 and FG and between J400 6 and FG on the MCU PWB Is there 24VDC between J400 5 and FG and is there 24VDC between J400 6 and FG Go step 8 Go to step 6 Step Actions and Questions Yes No 6 AC POWER IN CHECK Measure the voltage between J19 1 and J19 3 on the Noise Filter PWB Is there 110VAC between J19 1 and J19 3 Go to step 7 Replace the No...

Page 117: ...est Patterns measure the voltage between J400 7 and FG on the MCU PWB Does the 5VDC measured between J400 7 and FG remain relatively constant throughout the print run and does not deviate more than a volt during the print run Go to Step3 Replace the LVPS Assembly Step Actions and Questions Yes No 3 LVPS 24VDC UNDER LOAD CHECK 1 Generate 50 Grid Test Patterns 2 While the printing is generating the ...

Page 118: ...t erratic operation Go to Suspect Components Problem solved Step Actions and Questions Yes No SUSPECT COMPONENTS The following components are associated with this specific problem One or more of these components may have failed partially or completely If you cannot isolate the problem using this FIP replace each component listed below one at a time until the problem disappears Wiring and connector...

Page 119: ...ore of these components may have failed partially or completely If you cannot isolate the problem using this FIP replace each component listed below one at a time until the problem disappears No recommendations 1 MAIN DRIVE ASSEMBLY TEST Does the Main Motor run and do the gears of the Drive Assembly rotate normally Replace the MCU PWB Go to step 2 2 MAIN DRIVE ASSEMBLY MANUAL TEST Hand rotate coun...

Page 120: ... the Main Drive Assembly drive gear 2 Hand rotate counter clockwise the Main Motor Can you rotate the Main Motor and do the gears of the Drive Assembly rotate easily and without binding Replace Tray 2 Drive Assembly Go to step 7 Step Actions and Questions Yes No 7 REGISTRATION CLUTCH BIND ING CHECK 1 Remove the Registration Clutch 2 Hand rotate counter clockwise the Main Motor Can you rotate the M...

Page 121: ...y 2 Is the problem with MSI feed Go to step 4 Go to step 3 3 TRAY 1 FEED CLUTCH TEST While the Main Motor is running under 8 1 run Output Test 8 12 to actuate Tray 1 Feed Clutch Does the Feed Clutch actuate and do the Feed Rolls rotate Go to step 5 Replace the Tray 1 Feed Clutch Step Actions and Questions Yes No 4 MSI FEED CLUTCH TEST Does the MSI Feed Clutch actuate and do the MSI Feed Rolls rota...

Page 122: ... one at a time until the problem disappears LVPS Assembly ESS PWB Wiring and connectors linking the components 1 TONER SENSOR TEST 1 Insert and remove a new EP Cartridge into the printer Does the Control Panel LCD display L when the EP Cartridge is in place and does the LCD display H when you remove the Cartridge Replace the MCU PWB Replace the Toner Sensor Step Actions and Questions Yes No SUSPEC...

Page 123: ...ears Wiring and connectors linking the components LVPS Assembly 1 MAIN DRIVE ASSEMBLY INSPECTION 1 Remove the Rear Cover Assembly Does the Main Motor run and do the gears of the Drive Assembly rotate normally Go to step 2 Go to FIP Inoperative Main Drive Assembly 2 EXIT DRIVE TEST 1 Remove the Fuser Full Cover Does the Exit Motor run forward during 10 6 and reverse during 10 7 Go to step 3 Replace...

Page 124: ...he AC wall outlet 6 Is the printer located in an area where the temperature and humidity are moderate and stable 7 Is the printer located in an area that is free of dust 8 Is the printer located in an area away from water outlets steamers electric heaters volatile gases or open flames 9 Is the printer shielded from the direct rays of the sun 10 Does the printer have recommended space around all si...

Page 125: ...NT Install a new EP Cartridge CRU Is the image density normal Problem solved Go to step 3 Step Actions and Questions Yes No 3 IMAGE DEVELOPMENT INSPEC TION 1 Remove the Rear Cover 2 Generate a Grid Test Print and switch OFF printer power halfway through the print cycle 3 Open the Left Upper Cover 4 Open the Drum Shutter 5 Hand rotate counter clockwise the Main Drive Motor to advance the Drum far e...

Page 126: ...nother Grid Test Print and switch OFF printer power when the print is halfway through the Fuser 2 Open the Left Upper Cover 3 Examine the paper areas before the image enters the Fuser and after the image exits the Fuser Is the image normal before it enters the Fuser but light when it exits the Fuser Replace the Fuser Assembly Go to Suspect Components ...

Page 127: ... step 3 Step Actions and Questions Yes No 3 IMAGE DEVELOPMENT INSPEC TION 1 Remove the Rear Cover 2 Generate a Grid Test Print and switch OFF printer power halfway through the print cycle 3 Open the Left Upper Cover 4 Open the Drum Shutter 5 Hand rotate counter clockwise the Main Drive Motor to advance the Drum far enough so you can see the developed image area on the Drum before it reached Transf...

Page 128: ...OFT WARE ISOLATION Generate a Grid Test Print Is the test print image normal Replace the ESS PWB or reload the Host Software Go to step 3 Step Actions and Questions Yes No 3 EP CARTRIDGE REPLACEMENT Install a new EP Cartridge Is there a normal image on the paper Problem solved Go to step 4 4 IMAGE DEVELOPMENT INSPEC TION 1 Remove the Rear Cover 2 Generate a Grid Test Print and switch OFF printer p...

Page 129: ...2 Generate a Grid Test Print Is the printed Test Pattern normal Problem solved Go to step 7 7 ROS REPLACEMENT 1 Replace the ROS Assembly 2 Generate a Grid Test Print Is the printed Test Pattern normal Problem solved Refer to the wiring diagrams Section 14 and check for a broken wire or loose connection between components in the Xerographic sections of the printer ...

Page 130: ...or clean the ROS window 2 PAPER INSPECTION Is the paper wrinkled or dimpled Load fresh dry paper Go to step 3 Step Actions and Questions Yes No 3 EP CARTRIDGE REPLACEMENT Install a new EP Cartridge CRU Are the vertical band deletions gone Problem solved Go to step 4 4 IMAGE TRANSFER INSPECTION 1 Remove the Rear Cover 2 Generate a Solid Black Test Print and switch OFF printer power halfway through ...

Page 131: ... INSPECTION Is the paper wrinkled or dimpled Replace with fresh dry paper Go to step 2 2 EP CARTRIDGE REPLACEMENT Install a new EP Cartridge Are the horizontal band deletions gone Problem solved Go to step 3 Step Actions and Questions Yes No 3 IMAGE TRANSFER INSPECTION 1 Remove the Rear Cover 2 Generate a Solid Black Test Print and switch OFF printer power halfway through the print cycle 3 Open th...

Page 132: ...ean Go to step 3 Clean ROS window Step Actions and Questions Yes No 3 EP CARTRIDGE REPLACEMENT Install a new EP Cartridge CRU Are the vertical streaks gone Problem solved Go to step 4 4 IMAGE TRANSFER INSPECTION 1 Remove the Rear Cover RRP 1 3 2 Generate a Grid Test Print and switch OFF printer power halfway through the print cycle 3 Open the Left Upper Cover 4 Open the Drum Shutter 5 Hand rotate ...

Page 133: ...Test Print and switch OFF printer power halfway through the print cycle 3 Open the Left Upper Cover 4 Open the Drum Shutter 5 Hand rotate counter clockwise the Main Drive Motor to advance the Drum far enough so you can see the developed image area on the Drum before it reached Transfer Is the image on the drum completely white without any horizontal streaks visible Go to step 3 Replace the ROS Ass...

Page 134: ...l Streaks Step Actions and Questions Yes No 5 C262 MAIN CONTROLLER REPLACEMENT Replace the C262 Main Board Are the horizontal streaks gone Problem solved Go to step 6 6 HVPS REPLACEMENT Replace the HVPS Assembly Are the horizontal streaks gone Problem solved Go to Suspect Components ...

Page 135: ... Questions Yes No 3 IMAGE TRANSFER INSPECTION 1 Remove the Rear Cover 2 Generate a Black Test Print and switch OFF printer power halfway through the print cycle 3 Open the Left Upper Cover 4 Open the Drum Shutter 5 Hand rotate counter clockwise the Main Drive Motor to advance the Drum far enough so you can see the developed image area on the Drum before it reached Transfer Before Transfer was the ...

Page 136: ...leaking toner Replace the EP Cartridge Go to step 2 Step Actions and Questions Yes No 2 INTERIOR INSPECTION AND CLEANING 1 With the EP Cartridge removed inspect the interior of the printer for toner contamination 2 Vacuum or wipe all interior surfaces including Feed Rolls 3 Generate 30 Blank Test Prints to clean out the printer 4 Examine the last print out Are the spots gone Problem solved Go to s...

Page 137: ...nt and switch OFF printer power when the print is halfway through the Fuser 2 Open the Left Upper Cover 3 Examine the paper areas before the image enters the Fuser and after the image exits the Fuser Is paper clean before it enters the Fuser but there are spots on the paper when it exits the Fuser Replace the Fuser Assembly Clean or replace the Offset Exit Assembly ...

Page 138: ...PEC TION Inspect the residual images Was the customer printing numerous copies of the same image Go to step 2 Go to step 3 Step Actions and Questions Yes No 2 Generate a print run of 30 pages of varying images Do residual images still appear Go to step 3 Problem solved Avoid printing numerous copies of the same image 3 EP CARTRIDGE REPLACEMENT Install a new EP Cartridge Are the ghost images gone P...

Page 139: ... 1 Remove the Rear Cover 2 Generate a Blank Test Print and switch OFF printer power halfway through the print cycle 3 Open the Left Upper Cover 4 Open the Drum Shutter 5 Hand rotate counter clockwise the Main Drive Motor to advance the Drum far enough so you can see the developed image area on the Drum before it reached Transfer Is the image on the drum com pletely clean without any notice able ba...

Page 140: ... Test Print and switch OFF printer power when the print is halfway through the Fuser 2 Open the Left Upper Cover 3 Examine the paper areas before the image enters the Fuser and after the image exits the Fuser Is paper clean before it enters the Fuser but there is background on the paper when it exits the Fuser Replace the Fuser Assembly Go to Suspect Components ...

Page 141: ...ED INSPECTION Are the paper cassettes installed correctly and is the paper correctly loaded into each cassette Go to step 2 Reload the paper and reinstall the cassettes 2 PAPER PATH INSPECTION Inspect the paper path between the feed tray and the exit tray for contamination or obstructions Is the paper path free of obstructions Go to step 3 Remove obstructions or contamination from the paper path S...

Page 142: ...th or replace the broken component Step Actions and Questions Yes No 3 PAPER FEED INSPECTION Run a Grid Test Print and switch OFF printer power halfway through the print cycle Open the Left Upper Cover Is the paper fed crooked Go to FIP Skewed Image Go to step 4 4 PAPER PATH ROLLS INSPEC TION Inspect all of the rolls along the paper path between the feed tray and the exit tray for contamination we...

Page 143: ...bbed Off 3 4 15 Image not Registered Correctly Problem The printed image is not centered on the page or is bleeding off of the page SUSPECT COMPONENTS The following components are associated with this specific problem One or more of these components may have failed partially or completely If you cannot isolate the problem using this FIP replace each component listed below one at a time until the p...

Page 144: ...lation 11 Is the printer sitting on a level and stable surface 12 Is recommended paper stock being used in the printer 13 Does the customer use the printer as instructed in the User Manual 14 Are consumables such as the EP Cartridge replaced at recommended intervals Table 3 59 Electrical Noise Troubleshooting Step Actions and Questions Yes No SUSPECT COMPONENTS The following components are associa...

Page 145: ... before moving on to the next step 4 EP CARTRIDGE REPLACEMENT Replace the EP Cartridge Is the Electrical Noise problem still present Go to step 5 Problem solved 5 MAIN SWITCH REPLACEMENT Replace the Main Power Switch Is the Electrical Noise problem still present Go to step 6 Problem solved Step Actions and Questions Yes No 6 HVPS REPLACEMENT Replace the HVPS Assembly Is the Electrical Noise proble...

Page 146: ... DISASSEMBLYANDASSEMBLY ...

Page 147: ...console panel Figure 4 1 Notations W A R N I N G Switch off the printer power and disconnect the AC power cord from the wall outlet Wait at least 30 minutes for the Fuser to cool before removing parts in the Fuser area Since this printer weights approximately 50Kg at least two people should carry it when moving it C A U T I O N Remove the EP Cartridge and cover it with a dark cloth or place it in ...

Page 148: ...mbly Rev B 134 Arrows in an illustration show direction of movement when removing a component Slashes in a part name indicate that numerous components share the same heading and function For example Gears In Feed Out refers to Gear In Gear Feed and Gear Out ...

Page 149: ... 1 Figure 4 3 Flow Chart 2 START Top cover Assembly Rear Cover ch401 Feed Nudger and Retard Roll Front Chute Assembly Tray 1 Feeder Assembly Tray 1 Tray 2 Level Sensor Tray 1 Tray 2 No Paper Sensor MSI Feeder Assembly L H Lower Cover Assembly Left Lower Cover Assembly Left Lower Cover Pinch Roll Assembly Left Lower Cover Interlock Switch Tray 2 Take Away Sensor Left Chute Assembly BTR Assembly Tra...

Page 150: ...olenoid Exit Gate Solenoid ch403 Face Up Exit Sensor Full Stack Sensor Offset Exit Assembly Offset Drive Assembly Fuser Drive Assembly Offset Roller Assembly Exit Roll Assembly Lower Chute Assembly Upper Chute Assembly Upper Chute Assembly Inverter Cluthes C Controller Board Unit ch404 Low Voltage Power Supply Assembly ROS Assembly Control Panel ...

Page 151: ...r Sensor Tray 2 Feed Clutch Tray 2 Feeder Asembly CRU Interlock Switch Tray 2 Retard Asembly Tray 2 Take Away Roll Asembly Tray 1 2 Paper size Sensor Tray 1 Feed Clutch Tray 1 Take Away Roll Assembly Tray 1 Retard Asembly MSI Support Assembly Tray 1 Lift Up Motor Support Assembly Spring Left Upper Cover Assembly Registaration Chute Assembly Registaration Roll Assembly Registaration Sensor ...

Page 152: ...ft the Fuser Cover off of the Top Cover Assembly Figure 4 7 Fuser Full Cover Removal 4 2 1 2 Installation 1 Open the Duplex Unit if one is installed 2 Open the Left Upper Cover 3 Slide the tabs that are located at both ends of the Cover into the corresponding openings in the Top Cover Assembly See the figure below 4 Lower the Fuser Full Cover onto the Fuser Assembly 5 Press the Fuser Full Cover in...

Page 153: ...Panel and lift the Top Cover Assembly off of the printer frame 4 2 2 2 Installation 1 Unplug the AC Power Cord from the rear of the printer 2 Reconnect J417 to the Control Panel 3 Reinstall the Top Cover Assembly onto the printer frame 4 Make sure the screw holes at the right side of the Top Cover line up with the screw holes in the printer frame and the left end of the Cover is under the Exit Chu...

Page 154: ...ull the bottom of the Rear Cover away from the printer frame and slide the Cover down to remove it 4 2 3 2 Installation 1 Slide the top edge of the Rear Cover under the edge of the Top Cover then press the Rear Cover against the printer frame 2 Slide the Cover down so the bottom edge catches the lip of the printer frame 3 Use two screws to secure the Rear Cover Assembly to the printer frame 4 Reco...

Page 155: ...om the printer frame Figure 4 11 Removal of Right Cover 4 2 4 2 Installation 1 Raise the right end of the Top Cover 2 Press the Right Cover against the printer frame and slide the Cover down until the two hooks at the bottom lip of the Cover are hooked in place under the Tray 1 Cover 3 Press the top of the Right Cover against the printer frame while you lower the Top Cover Make sure the Top Cover ...

Page 156: ...417 from the Control Panel 3 Push in on the four tabs securing the Control Panel to the Top Cover while you press the Control Panel out of the Cover Figure 4 12 Removal of Control Panel 4 2 5 2 Installation 1 Position the Control Panel over the opening in the Top Cover Assembly and press the Panel into the opening The panel snaps into place 2 Reconnect J417 3 Reinstall the Top Cover See Top Cover ...

Page 157: ...ews securing the Rear Cover 1TM to the printer frame 3 Lift up on the Cover and remove it from the printer frame Figure 4 13 Removal of Rear Cover 1TM 4 2 6 2 Installation 1 Reinstall the Rear Cover 1TM by first hooking the bottom edge of the Cover onto the frame then pressing the top of the Cover against the frame 2 Use two screws to secure the Cover to the printer frame 3 Reconnect the option pl...

Page 158: ...rews securing the Motor to the printer frame 5 Slide the Motor out to remove it Figure 4 14 Removal of Tray 1 Lift Up Motor 4 2 7 2 Installation 1 Reinstall the Lift Up Motor onto the printer frame Be careful not to trap any wires between the Motor and the frame 2 Use three long screws to secure the Motor to the frame Use one screw on the lower left and two screws on the right side of the Motor 3 ...

Page 159: ...de the Clutch completely off of the shaft Figure 4 15 Removal of Tray 1 Feed Clutch 4 2 8 2 Installation 1 Position the Feed Clutch over the end of the Feed Shaft 2 Reposition the Feed Clutch so it fits the key notch on the shaft and you can feel the Clutch slide onto the shaft and press the Clutch onto the shaft until the Clutch P J clears the Support Spring 3 Rotate the Clutch until the slot in ...

Page 160: ...otate and push the Roll down the shaft until the latch locks the Roll into place 3 Repeat steps 1 and 2 for the remaining two Rolls 4 Reinstall the Chute by sliding the opening in the rear of the Chute into the tab on the frame then slightly squeezing the Chute and hooking the tab at the front of the Chute into the opening on the frame 5 Reinstall the paper tray 6 Reset the Paper Feeder Usage Log ...

Page 161: ... at the lower right of the Tray and remove the stud 8 Remove the screw securing the docking clip to Tray 2 and remove the clip 9 Disconnect P403 P404 P406 and P408 from the MCU PWB 10 Remove the screw securing the Option Connector Bracket the frame and remove the Bracket 11 Remove the screw securing the retaining clip that is located under the Option Connector Bracket and remove the clip Figure on...

Page 162: ...1 Take Away Roll Assembly onto the bottom of the printer frame 2 Align the two plastic mounting pins located on the top of the Assembly with the two mounting holes located in the bottom of the printer frame 3 Press the Assembly into the frame so the mounting pins snap into the holes 4 Use two screws to secure the front of the Assembly to the printer frame 5 Use four screws to secure the rear of th...

Page 163: ...screw to secure the clip 14 Reinstall the docking stud located at the lower right of the Tray and use a retaining clip to secure the stud 15 Reinstall the MSI Support Assembly MSI Support Assembly on page 166 16 Reinstall the Rear Cover Assembly Rear Cover Assembly on page 140 17 Reinstall the Left Upper Cover Assembly 18 Reinstall Tray 1 and Tray 2 19 Reinstall the EP Cartridge EP Cartridge Toner...

Page 164: ...utch along with the Feed Gear and Bearing Tray 1 Feed Clutch on page 145 Refer to the figure 5 Remove the E ring that is securing the Feed Gear located behind the Feed Clutch to the shaft and remove the Feed Gear and Bearing 6 Hold down the Stopper Link while you pull the Feeder Assembly to the front of the printer frame 7 Remove the Feeder Assembly from Feeder 1 Figure 4 19 Removal of Tray1 Feed ...

Page 165: ...ink and the Link should secure the Feeder Assembly in place on the frame 5 Make sure the Paper Level Actuator tab on the Feeder is positioned in the center of the arms of the Paper Level Sensor 6 Slide the Feed Bearing onto the Feed Shaft and press the Bearing into the cutout in the frame 7 Reinstall the Feed Gear onto the Feed Shaft and use an E ring to secure it to the Shaft 8 Reinstall Tray 1 F...

Page 166: ...crew securing the Support Assembly Spring to the printer frame and remove the Spring Figure 4 21 Removal of Support Assembly Spring 4 2 12 2 Installation 1 Reinstall the Support Assembly Spring Refer to the figure for correct positioning 2 Make sure the front and rear arms of the Spring are positioned as shown in the figure 3 Use one screw to secure the Spring to the frame 4 Reinstall Tray 1 Lift ...

Page 167: ... securing Gear 22 20 Retard and Take Away Tray 1 on page 260 to the shaft and remove the Gear 9 Remove the plastic bearing securing the Take Away Roll Shaft to the front of the Retard Frame and remove the Retard Assembly and Take Away Roll 10 Remove the E rings and Gears attached to the rear of the Take Away Roll Shaft 11 Remove the Center Bearing on the Take Away Roll Shaft and slide the Roll out...

Page 168: ...ray 1 Support Assembly Spring Support Assembly Spring on page 152 9 Reattach the spring to the Retard Support 10 Reinstall the plastic Feed Chute to the Take Away Roll 11 Reinstall the Feed In Chute and use one screw to secure it to the Assembly 12 Reinstall the Left Middle Cover L H Low Cover Assembly on page 178 13 Reinstall Tray 1 Take Away Roll Assembly See Tray1 Take Away Roll Assembly on pag...

Page 169: ...aper Tray 1 or Paper Tray 2 2 Use a flat blade screwdriver to unhook the front of the Chute and remove the Chute Figure 4 23 Removal of Front Chute 4 2 14 2 Installation 1 Remove either Paper Tray 1 or Paper Tray 2 2 Reinstall the Chute by sliding the opening in the rear of the Chute into the tab on the printer frame then hooking the tab at the front of the Chute into the opening on the frame 3 Re...

Page 170: ... the frame 3 Disconnect the P J from the Sensor 4 2 15 2 Installation 1 Reconnect the P J to the Sensor 2 Position the Sensor with the arms of the Sensor facing the Feed Assembly Actuator 3 Reinstall the Paper Level Sensor into the slot in the frame by first inserting the front latch of the Sensor through the front opening in the frame 4 Press in on the rear latch and inserting it into the rear op...

Page 171: ...ct the P J from the Sensor 4 2 16 2 Installation 1 Reconnect the P J to the Sensor 2 Push the No Paper Actuator up and out of the way 3 Position the Sensor with the arms of the Sensor facing the Actuator 4 Reinstall the No Paper Sensor into the slot in the frame by first inserting the front latch of the Sensor through the front opening in the frame 5 Press in on the rear latch and inserting it int...

Page 172: ...move the screw securing the Size Sensor PWB to the printer frame pull the PWB straight out and remove it from the frame 4 2 17 2 Installation 1 Remove either Paper Tray 1 or Paper Tray 2 from the printer 2 Reinstall the Paper Size Sensor PWB onto the printer frame Align the positioning tabs and screw holes 3 Reconnect the P J to the Size Sensor PWB 4 Use one screw to secure the PWB to the frame 5 ...

Page 173: ...securing the Gear to the shaft and slide the Gear and Bearing off of the shaft 4 2 18 2 Installation 1 Slide the Bearing onto the shaft and seat it in the cutout in the printer frame 2 Slide the Gear onto the shaft and use an E ring to secure it to the shaft 3 Slide the Feed Clutch onto the shaft making sure the positioning notch on the shaft hooks onto the tab on the frame 4 Use an E ring to secu...

Page 174: ...g with the Feed Gear and Bearing Tray 2 Feed Clutch on page 159 Refer to the figure on your right 5 Remove the E ring that is securing the Feed Gear located behind the Feed Clutch to the shaft and remove the Feed Gear and Bearing 6 Hold down the Stopper Link while you pull the Feeder Assembly to the front of the printer frame 7 Remove the Feeder Assembly from Feeder 2 Figure 4 29 Removal of Tray2 ...

Page 175: ...uld rest on top of the Stopper Link and the Link should secure the Feeder Assembly in place on the frame 5 Make sure the Paper Level Actuator tab on the Feeder is positioned in the center of the arms of the Paper Level Sensor 6 Slide the Feed Bearing onto the Feed Shaft and press the Bearing into the cutout in the frame 7 Reinstall the Feed Gear onto the Feed Shaft and use an E ring to secure it t...

Page 176: ...ake Away Roll shaft 3 Remove the Center Bearing on the Take Away Roll Shaft and slide the Roll out of the Retard Support Figure 4 30 Removal of Tray2 Take Away Roll Assembly 4 2 20 2 Installation 1 Reinstall the Take Away Roll shaft onto the Retard Support 2 Reinstall the Center Bearing onto the Take Away Roll shaft and secure the shaft to the Support 3 Reinstall the Gears and E rings to the rear ...

Page 177: ...front of the printer frame and remove the Retard Assembly and attached Take Away Roll 8 Remove the Take Away Roll Tray2 Take Away Roll Assembly on page 162 4 2 21 2 Installation 1 Reinstall the Take Away Roll Shaft onto the Retard Support Tray2 Take Away Roll Assembly on page 162 2 Reinstall the Retard Assembly and Take Away Roll back into the printer frame 3 Reinstall the plastic bearing into the...

Page 178: ...he printer 2 Position the MSI Feeder against the MSI Support 3 Tilt the MSI Feeder so the Feed Gear slides through the cutout in the printer cover 4 Hold the MSI Feeder Assembly level and push the Assembly against the printer Figure 4 32 Removal of MSI Feeder Assembly 4 2 23 MSI Tray Assembly See MSI Tray Assembly on page 164 4 2 23 1 Removal 1 Remove the MSI Feeder Assembly MSI Feeder Assembly Ma...

Page 179: ...embly 4 2 23 2 Installation 1 Slide pivot hole on the left side of the Tray onto the metal shaft on the Rear Support 2 Push out on the Front Support as you slightly bow the Tray and slid the pivot hole on the right side of the Tray into the metal shaft on the Front Support 3 Insert the free end of the Tray Spring into the slot at the bottom edge of the Tray 4 Reconnect the P J that runs from the T...

Page 180: ...I Support Assembly to the printer frame and remove the Assembly 4 2 24 2 Installation 1 Position the MSI Support Assembly a few inches from the printer frame 2 Insert the wire harness into the cutout in the printer frame 3 Slide the two positioning pins that are located at both ends of the Support Assembly into the holes in the frame 4 Use four screws to secure the Assembly to the frame 5 Reconnec...

Page 181: ...he right side of the Tray See the figure 5 Press the first latch while you pry the edge of the Lower Cover out of the Upper Cover 6 Repeat step 4 for the remaining two latches located on the right side of the Tray 7 Repeat step 4 for the two latches that are located on the left side of the Tray and remove the Lower Cover from the Upper Cover 8 Remove the MSI Tray 9 Squeeze together the latches hol...

Page 182: ...arm lowers as you move the Sensor to the left and raises when you move the Sensor to the right 6 Route the Sensor wire harness along the molded channel and through the cutout on the right side of the Upper Cover 7 Reconnect J107 8 Reinstall the MSI Tray with the arrow side facing down 9 Slide the three tabs on the upper edge of the Lower Cover into the three cutouts in Upper Cover and press the Lo...

Page 183: ... 164 2 Remove MSI Top Cover 3 Remove the screw securing the MSI Tray Support PL4 1 9 to the Feeder Assembly and pull the Support away from the Assembly Figure below Figure 4 37 Removal of MSI Tray Support 4 Disconnect the J208 running to the MSI Feed Clutch 5 Remove the screw securing the Rear Hook Bracket to the Feeder Assembly and remove the Bracket Figure below Figure 4 38 Removal of Rear Hook ...

Page 184: ...k Gear to the idler shaft and slide the Gear along with the MSI Drive Gear Assembly off of the shaft Figure below Figure 4 39 Removal of MSI Link Gear 7 Remove the E ring securing the MSI Feed Clutch to the Feed Shaft and slide the Clutch off of the Feed Shaft Figure right Figure 4 40 Removal of MSI Feed Clutch ...

Page 185: ...ious page 4 Use and E ring to secure the MSI Feed Clutch to the Feed Shaft 5 Reinstall the Link Spring onto the Rear Latch Figure on the previous page 6 Slide the MSI Link Gear along with the MSI Drive Gear Assembly onto the idler shaft 7 Use an E ring to secure the MSI Link Gear to the idler shaft 8 Reinstall the Rear Hook Bracket to the Feeder Assembly and use one screw to secure the Bracket 9 R...

Page 186: ...d Roll off of the shaft Figure 4 41 Removal of MSI Feed Roll 4 2 27 2 Installation 1 Position the Feed Roll so the metal end of the hole is facing the No Paper Sensor 2 Press down the Retard Pad and slide the MSI Feed Roll onto the Feed Shaft 3 Use a KL clip to secure the Roll to the shaft 4 Reinstall the No Paper Sensor Bracket onto the Feeder Assembly and use one screw to secure it to the Assemb...

Page 187: ...Roll off of the shaft Figure 4 42 Removal of MSI Nudger Roll 4 2 28 2 Installation 1 Slide the Nudger Roll forked end first onto the Nudger Shaft making sure the forked end engages the pin at the end of the shaft 2 Use an E clip to secure the Nudger Roll to the Shaft 3 Slide the MSI Gate onto the Shaft see the illustration for correct positioning of the Gate 4 Use an E clip to secure the Gate to t...

Page 188: ...for correct placement 2 Hook one end of the Feed Spring over the Nudger Roll Assembly frame 3 Reinstall the Nudger Roll Assembly into the MSI Feeder Assembly 4 Hold the Feed Gear in place with the flat side against the Nudger Roll Assembly 5 Slide the Feed Shaft through the Feed Gear through the Rear Feed Bearing through the Nudger Roll Assembly through the Feed Spring through the Front MSI Bearin...

Page 189: ...per Guide and slide the MSI Pad to the right and out of the Feeder 4 2 30 2 Installation 1 Pull back the MSI Paper Guide and slide the MSI Pad between the Guide and the Pad Spring 2 Turn the MSI Feeder upside down 3 Slide the MSI Pad Pin into the hole in the Feeder through the holes in the three legs of the MSI Pad and out through the other hole in the Feeder 4 Use a KL clip to secure the MSI Pad ...

Page 190: ... in place on the Clutch shaft 2 Rotate the Spacer so the tabs on the Spacer mesh with the notches on the Clutch Gear 3 Slide the Friction Clutch onto the shaft rotating the Clutch as you slide it toward the Spacer 4 Make sure the Clutch and Spacer mesh 5 Use one E ring to secure the Clutch to the shaft 6 Reinstall the MSI Tray Assembly MSI Tray Assembly on page 164 Figure 4 45 Removal of MSI Frict...

Page 191: ... connector faces the screw hole in the Sensor Bracket 2 Insert the Sensor latches into the two opening in the Bracket The Sensor snaps into place 3 Make sure the arm of the No Paper Actuator is between the two arms of the Sensor 4 Reconnect the P J to the No Paper Sensor 5 Insert the Bracket prong through the keyhole opening in the back of the Feeder 6 Slide the Bracket to the right so the screw h...

Page 192: ...e 166 2 Remove the four screws securing the Left Middle Cover to the printer frame and remove the Cover Figure 4 47 Removal of Left Middle Cover 3 LIft the Pinch Roll Bracket off of the Left Middle Cover 4 Remove the two Holding Springs and lift the Pinch Roll out of the Bracket 5 Remove the two Center Bearings the two Shaft Springs and the two End Brackets from the Shaft Figure 4 48 Disassembly o...

Page 193: ...onding cutout in the Bracket 4 Hook one end of each Holding Spring into a spring hole in one side of the Bracket 5 Bring the Springs over the Shaft and hook the other end of each Spring into the spring hole on the opposite side of the Bracket 6 Slide a Center Bearing under each Holding Spring as shown in the figure 7 Reinstall the Pinch Roll Bracket onto the Left Middle Cover as shown in the figur...

Page 194: ...Front Hinge to the printer frame 3 Pull the Left Lower Cover away from the printer frame Figure 4 49 Removal of Left Lower Cover Assembly 4 2 34 2 Installation 1 Reinstall the Front Hinge onto the pivot post on right side of the Left Lower Cover 2 Reinstall the Left Lower Cover by first sliding the left pivot post into the Rear Hinge 3 Use one screw to secure the Front Hinge to the printer frame 4...

Page 195: ...nstall an End Bearing to each end of the Pinch Roll 2 Reinstall the Pinch Roll onto the Bracket Make sure that the lip of each Bearing is trapped behind the tabs in the Bracket 3 Hook one end of each Pinch Roll Spring into a spring hole in one side of the Bracket 4 Bring the Springs over the Pinch Roll Shaft and hook the other end of each Spring into the spring hole on the opposite side of the Bra...

Page 196: ...the sides of the Switch and pull it away from the printer frame 3 Disconnect J144 Figure 4 51 Removal of Left Lower Cover Interlock Switch 4 2 36 2 Installation 1 Reconnect J144 2 Squeeze the sides of the Switch while inserting the locating tab on the Switch into the opening in the frame 3 Release the sides of the Switch and press it into the frame 4 The Switch snaps into place 5 Close the Left Lo...

Page 197: ...2 Squeeze in all four Sensor latches while you pull the Sensor out of the printer frame 3 Disconnect J143 from the Sensor Figure 4 52 Removal of Tray2 Take Away Sensor 4 2 37 2 Installation 1 Reconnect J143 to the Sensor 2 Insert the Sensor into the cutout in the frame See the figure for correct positioning 3 Press in on the Sensor until it snaps into place 4 Close the Left Lower Cover ...

Page 198: ...ing the Registration Clutch to the Registration Shaft 4 Push out on the shaft latch as you slide the Clutch off of the shaft Figure 4 53 Removal of Registration Clutch 4 2 38 2 Installation 1 Slide the Registration Clutch onto the shaft The shaft latch snaps the Clutch into place on the shaft 2 Use an E clip to secure the Registration Clutch to the Registration Shaft 3 Reconnect P J 200 from the R...

Page 199: ... slide the Hinge completely out of the printer frame 5 Use a screwdriver blade to open the latch securing the Rear Shaft Hinge and slide the Hinge out of the Cover Assembly Do not slide the Hinge completely out of the printer frame 6 Pull the Left Upper Cover Assembly away from the printer frame 7 Remove the two screws securing the two Cover Supports to the frame and remove the Cover Figure 4 54 R...

Page 200: ...ntil the latch locks the Hinge onto the shaft 4 Slide the Front Shaft Hinge into the hinge opening in the Front Cover arm until the latch locks the Hinge onto the shaft 5 Use two screws to secure the two Cover Supports to the frame 6 Reinstall the Rear Cover Rear Cover Assembly on page 140 7 Open and close the Cover to make sure it opens and latches correctly C A U T I O N When the Left Upper Cove...

Page 201: ...to the Chute Assembly Make sure the cutout in the Chute Assembly capture the lips of the three bearings on the shaft 2 Hook the free ends of the two springs into the holes in the Chute so the springs lay on top of the bearings and secure the shaft to the Chute 3 Position the Left Chute Assembly so the cutout for the Registration Senor is located opposite the Registration Sensor 4 Lift the clear my...

Page 202: ...tion Chute to the printer frame and remove the Chute 8 Disconnect P J103 from the Registration Sensor 4 2 41 2 Installation 1 Reconnect P J103 to the Registration Sensor 2 Reinstall the Registration Chute Assembly into the printer frame Make sure the mylar strip is on the outside of the Chute 3 Align the four screw holes two at each end in the Registration Chute with the four screw holes in the pr...

Page 203: ...e rear to free the front of the Shaft from the front bearing 4 Remove the Registration Roll Assembly 4 2 42 2 Installation 1 Make sure both the front and rear bearings are in place in the frame 2 Slide the rear of the Registration Roll Shaft through the rear bearing 3 Slide the front of the Shaft to the front bearing 4 Use one E ring to secure the rear of the Shaft to the rear bearing 5 Reinstall ...

Page 204: ...ll four Sensor latches while you pull the Sensor out of the Registration Chute Assembly 3 Disconnect J103 from the rear of the Sensor Figure 4 58 Removal of Registration Sensor 4 2 43 2 Installation 1 Reconnect J103 to the Registration Sensor 2 Insert the Sensor into the cutout in the Registration Chute Assembly 3 Press in on the Sensor unit it snaps into place 4 Close the Left Upper Cover ...

Page 205: ...sition the ROS Assembly until the two locating pins mounted on the bottom of the ROS drop into locating holes that are cut into the printer frame 3 Make sure you have not trapped any wire harnesses under the ROS Assembly 4 Use four screws to secure the ROS Assembly to the printer frame 5 Reconnect J106 J207 J407 and J430 to the ROS 6 Reinstall the LVPS Low Voltage Power Supply LVPS Assembly on pag...

Page 206: ...the printer 6 If you are removing the EP Cartridge as part of another RRP place the EP Cartridge in a covered box or cover it with a dark cloth to protect it from exposure to light Figure 4 60 Removal of EP Cartridge 4 2 45 2 Installation 1 Open the Duplex Unit 2 Open the Left Upper Cover 3 Open the Front Left Cover Assembly Cover Assembly FL 4 Hold the EP Cartridge by the top handle and carefully...

Page 207: ... way into the printer 6 Push firmly on the end of EP Cartridge to make sure it is correctly seated in the printer 7 Hold the edges of the EP Cartridge and pull out to make sure the EP Cartridge is latched in place Do not hold the handle when pulling out You will release the EP Cartridge latch 8 Close the Front Left Cover 9 Close the Left Upper Cover 10 Close the Duplex Unit ...

Page 208: ... Assembly 2 Face the left side of the printer 3 Hold the BTR by the end levers 4 Position the BTR so the BTR gear on one end of the Roll is to the rear 5 Press the ends of the BTR into the BTR Sleeves The BTR snaps into place 6 Rotate both levers toward to you lock the BTR in place 7 Close the Left Upper Cover Figure 4 61 Removal of BTR Assembly C A U T I O N Do not touch the sponge roll surface o...

Page 209: ...ront end is freed remove the Sensor along with the attached wire harness Figure 4 62 Removal of Toner Sensor 4 2 47 2 Installation 1 Reinstall the Toner Sensor and attached springs refer to the figure for correct positioning 2 Route the attached wire harness along the channel and through the small opening in the rear of the frame 3 Press the Toner Sensor into the cutout in the bottom of the EP Car...

Page 210: ...he Interlock Switch wire harness 5 Remove the screw securing the CRU Interlock Switch to the printer frame and remove the Switch Figure 4 63 Removal of CRU Interlock Switch 4 2 48 2 Installation 1 Line up the two positioning holes on the CRU Interlock Switch with the two position tabs on the printer frame 2 Use one screw to secure the Switch to the frame 3 Reconnect J234 to the Interlock Switch wi...

Page 211: ...2 on the left end of the Assembly aligned with P12 mounted on the printer frame 4 Hold on to the Fuser handles and slide the Fuser Assembly into the printer frame 5 Firmly push the Fuser Assembly to make sure J12 is mated correctly with P12 6 Tighten the two thumb screws to secure the Fuser Assembly to the printer frame 7 Close the Left Upper Cover and the Left Front Cover Figure 4 64 Removal of F...

Page 212: ... Disconnect J23 from the AC Driver PWB and free the wire harness from the harness clips 5 Disconnect FB red wire from the HVPS and free the wire harness from the harness clips 6 Remove P204 wire harness from the Fuser Drive Assembly 7 Disconnect J104 J600 and J602 8 Remove the two screws securing the Fuser Drive Assembly to the printer frame and lift the Assembly off of the frame 9 Remove the scre...

Page 213: ...y to the frame 4 Reinstall the green ground wire to the printer frame and use one screw to secure the wire 5 Reconnect J104 J600 and J602 6 Reinstall P204 wire harness to the Fuser Drive Assembly 7 Reconnect FB red wire to the HVPS and secure the wire harness under the harness clips 8 Reconnect J23 to the AC Driver PWB and secure the wire harness under the harness clips 9 Reinstall the Offset Unit...

Page 214: ...next to the solenoid and two screws at the rear of the Assembly securing the Offset Unit to the printer frame 7 Lift the Offset Unit up and off of the printer frame 4 2 51 2 Installation 1 Open the Duplex Unit 2 Open the Upper Left Cover 3 Reinstall the Offset Unit onto the printer frame 4 Use three screws one screw at the front of the Assembly next to the solenoid and two screws at the rear of th...

Page 215: ...tion 1 Align the Exit Drive Assembly with the Offset Unit Assembly so the white drive gear and shaft fit through the corresponding opening in the Exit Drive Assembly 2 Press the Exit Drive Assembly onto the Offset Unit slightly repositioning the Assembly so the positioning pin on the upper right side of the Offset Unit fits through the corresponding hole in the Exit Drive Assembly Make sure you do...

Page 216: ...rews securing the Exit Gate Solenoid to the Offset Assembly and remove the Solenoid Figure 4 68 Removal of Exit Gate Solenoid 4 2 53 2 Installation 1 Position the Exit Gate Solenoid so the wire harness faces up 2 Reinstall the Solenoid onto the Offset Assembly making sure the crossbar of the solenoid plunger latches onto the Solenoid Link 3 Use two screws to secure the Solenoid to the Assembly 4 R...

Page 217: ...ffset Assembly 3 Lift the Motor off of the Assembly and free the Motor arm from the Offset Roll Rack 4 Disconnect J209 from the Offset Motor Figure 4 69 Removal of Offset Motor 4 2 54 2 Installation 1 Insert the Motor arm into the Offset Roll Rack 2 Reconnect J209 to the Offset Motor 3 Reinstall the Offset Motor onto the Offset Assembly 4 Use two screws to secure the Motor to the Assembly 5 Reinst...

Page 218: ... Sensor Bracket to the Lower Chute and remove the Bracket 5 Unhook the Exit Sensor Spring from the Bracket and remove the Exit Sensor Actuator 4 2 55 2 Installation 1 Reinstall the Exit Sensor Actuator onto Exit Sensor Bracket 2 Hook the Exit Sensor Spring onto the Bracket 3 Reinstall the Bracket onto the Lower Chute and use two screws to secure the Bracket 4 Reinstall the Face Up Exit Sensor onto...

Page 219: ...y frame 7 Slide the front bearing out the Assembly frame and remove the Offset Roller Assembly 4 2 56 2 Installation 1 Slide the rear of the Roller shaft through the rear bearing cutout in the Assembly frame 2 Insert the front bearing still attached to the front of the shaft into the front bearing cutout in the Assembly frame 3 Use a K clip to secure the shaft to the rear bearing 4 Reinstall the G...

Page 220: ...and remove the Sensor from the Lower Chute 4 2 57 2 Installation 1 Reinstall the Fuser Exit Sensor by pressing the Sensor latches into the cutouts in the Lower Chute 2 Secure J104 wire harness under the harness clips located on the Lower Chute 3 Reinstall the Lower Chute to the Exit Assembly frame Use five screws to secure the Lower Chute 4 Reinstall the Offset Roller Assembly Offset Roller Assemb...

Page 221: ...ee the rear hinge of the Upper Chute 7 Pull the Upper Chute to the rear and free the front hinge and remove the Upper Chute Assembly 4 2 58 2 Installation 1 Reinstall the front hinge of the Upper Chute Assembly into the cutout at the front of the frame 2 Carefully pull the frame far enough to the rear so you can slip the rear hinge of the Upper Chute into the cutout at the rear of the frame 3 Use ...

Page 222: ...e and remove the front bearing 5 Slide the shaft to the rear and remove the shaft from the Assembly 4 2 59 2 Installation 1 Reinstall the Exit Roll Assembly by sliding the rear of the shaft through the bearing cutout at the rear of the Assembly frame 2 Slide the front of the shaft into the bearing cutout at the front of the Assembly frame 3 Reinstall both front and rear bearings 4 Use an E ring to...

Page 223: ...or and remove the Sensor from the Offset Assembly Figure 4 75 Removal of Full Stack Sensor 4 2 60 2 Installation 1 Reinstall the Full Stack Sensor by pressing the Sensor latches into the cutouts in the Offset Assembly 2 Reconnect J133 and secure the wire harness under the harness clips 3 Reinstall the Fuser Full Cover Fuser Full Cover on page 138 C H E C K P O I N T Make sure you install the Senso...

Page 224: ... the gear faces away from the Bracket and insert the shaft at the rear of the Clutch into the bearing Make sure the notch in the Clutch hooks onto the tab on the Bracket Refer to the figure for correct positioning 3 Position the CCW Clutch so the gear faces away from the Bracket and insert the shaft at the rear of the Clutch into the bearing Make sure the notch in the Clutch hooks onto the tab on ...

Page 225: ...Rear Cover Rear Cover Assembly on page 140 3 Open the Left Upper Cover 4 Remove the Left Cover Interlock Switch Assembly Left Cover Interlock Switch Assembly on page 219 5 Remove the screw securing the Inner Cover to the printer frame and remove the Inner Cover See Figure on your right Figure 4 77 Removal of Main Drive Assembly C A U T I O N Do not attempt to remove the Main Drive Assembly without...

Page 226: ...e Assembly and move the Harness Support and attached harness out of the way 12 Remove the three self tapping screws securing the Main Drive Assembly to the printer frame The bottom right screw also secures a ground wire with attached resistor to the printer frame 13 Remove the screw that secures a ground strap at the bottom left of the Main Drive Assembly 14 Lift the Exit Gear out of the way and p...

Page 227: ...e self tapping screws to finish securing the Main Drive Assembly to the printer frame 11 After securing the Main Drive Assembly wiggle the Assembly to make sure it is firmly in place 12 Position the Harness Support against the Main Drive Assembly 13 Rotate the Registration Clutch and in the Feed Clutch so the slots in the Clutches line up with the key on the Harness Support then press the Support ...

Page 228: ...top of the Bracket Figure 4 79 Removal of Main Power Switch 4 2 63 2 Installation 1 Slide the Main Switch into the opening in the top of the Main Switch Bracket It snaps into place 2 Reconnect the four wires to the Switch Follow the illustration below when reconnecting the wires The illustration represents the underside of the Main Switch Bracket and Main Switch Figure 4 80 Pin position of Main Sw...

Page 229: ...2 Installation 1 Position the LVPS Assembly above the printer frame with the LVPS Fan facing the rear of the printer 2 Route the four black and white Main Power Switch wires to the rear of the LVPS 3 Reconnect J1 J235 J501 and J502 to the LVPS 4 Reinstall the wire harnesses into the harness clips at the rear of the LVPS 5 Slide the LVPS into place in the printer frame Make sure you do not trap the...

Page 230: ...ket 5 Disconnect the four P Js that are attached to the AC Drive PWB 6 Squeeze the four latches securing the PWB to the printer frame and remove the PWB 4 2 65 2 Installation 1 Align the four holes in AC Drive PWB to the four latches on the frame and press the PWB into place 2 Reconnect the four P Js to the AC Drive PWB 3 Reinstall the Bracket under the frame so it sandwiches SSR1 and SSR2 between...

Page 231: ...frame 5 Remove the HVPS Assembly from the frame 4 2 66 2 Installation 1 Reinstall the HVPS Assembly onto the printer frame 2 Align the two positioning holes on the HVPS with the two tabs on the frame Make sure you do not trap any wire harnesses between the HVPS Assembly and the printer frame 3 Push the HVPS against the frame until the two clips snap into place 4 Use two screws to secure the HVPS A...

Page 232: ...se Filter PWB to the printer frame 4 Squeeze the two latches securing the PWB to the printer frame and remove the PWB 4 2 67 2 Installation 1 Align the two holes in the left side of the Noise Filter PWB with the two plastic latches on the printer frame and press the PWB into place 2 Use two screws to secure the Noise Filter PWB to the printer frame 3 Reconnect J19 F55 and F56 to the Noise Filter P...

Page 233: ...t snaps into place 3 Position the Switch Lever against the Switch with the foot of the Lever facing out 4 Rotate the Switch Lever so it is straight up and slide it onto the Bracket Press and release the Lever to make sure it is functioning correctly 5 Open the Duplex Unit and the Left Upper Cover 6 Position the Switch Bracket against the printer frame slightly down from the screw hole in the print...

Page 234: ...ws securing the MCU Cover to the MCU Bracket and remove the Cover 5 Place the Bracket and MCU on a flat non conductive surface 6 Remove the four screws securing the MCU PWB to the MCU Bracket 7 Hold on to one of the plastic connectors mounted on the PWB and lift the MCU off of the Bracket Figure 4 86 Removal of MCU PWB C A U T I O N Wear an electrostatic wrist strap and use caution when working wi...

Page 235: ...he MCU Cover onto the MCU Bracket Position the Cover so the three screw tabs are on the right and aligned over the three screw holes in the center of the MCU PWB 5 Use six screws to secure the MCU Cover to the MCU Bracket 6 Reinstall the MCU PWB Bracket onto the printer frame Make sure you do not trap any wire harnesses between the Bracket and the frame 7 Use four screws to secure the Bracket to t...

Page 236: ...over to the ESS Box Figure 4 87 Removal of ESS Cover 3 Lift the ESS Cover off of the ESS Box 4 Remove harness from the connector parts CN14 CN19 CN20 and CN21 on the controller board 5 Removes twelve screws that secure the controller board A wire of CN14 is secured by one fixing screw of ESS Cover 6 Remove 2 screws that secure the I F bail lock parts of the controller board to the ESS Box and remo...

Page 237: ... the Box 4 2 71 2 Installation 1 Reinstall the ESS Box onto the printer frame Align the ESS Box so the cutout for the ESS PWB faces the rear of the printer 2 Use four screws to secure the ESS Box to the printer frame 3 Route the wire harness along the outside back of the ESS Box and through the grommet at the rear of the Box 4 Use the wire clamps to secure the wire harness to the Box There are two...

Page 238: ... ADJUSTMENT ...

Page 239: ...EPSON EPL N4000 EPL N4000 Chapter 5 Adjustment Rev B 225 No adjustment is necessary for this printer ...

Page 240: ... MAINTENANCE ...

Page 241: ...nits and Parts Figure 6 1 Exchange Units and Parts Reference No in the figure Name Life Page volume one side printing 1 EP Cartridge 20000 2 Fuser 300000 3 BTR Transfer Roller 300000 4 Feed Roll Tray1 300000 5 Feed Roll Tray2 300000 6 Feed Roll Tray3 300000 7 Feed Roll Tray4 300000 8 Feed Roll Tray5 300000 C A U T I O N If the fuser is exchanged be sure to perform Fuser Counter Clear See Maintenan...

Page 242: ... APPENDIX ...

Page 243: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 229 7 1 Connector Pin Diagram 7 1 1 Pin Alighnment Figure on next page shows major component of wiring diagram in this printer ...

Page 244: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 230 Figure 7 1 Major Component Connecting Diagram ...

Page 245: ...5 Take Away Roll 1 Sensor P J403 MCU PWB 102 page 235 Tray 1 No Paper Sensor P J459 MCU PWB P J Location Map Connected to Other end connected to 103 page 235 Tray 1 Level Sensor P J459 MCU PWB 104 page 236 Fuser Exit Sensor P J462 MCU PWB 105 page 236 Tray 1 Paper Size Sensor P J461 MCU PWB 106 page 234 SOS Sensor P J456 MCU PWB 107 page 235 MSI Size Sensor P J403 MCU PWB 108 page 235 MSI No Paper...

Page 246: ... P J235 Fuser Fan 402 page 236 MCU PWB P J422 ESS Mother PWB 403 page 236 MCU PWB P J107 MSI Size Sensor P J108 MSI No Paper Sensor P J208 MSI Feed Clutch 404 page 236 MCU PWB P J611 Duplex Module 405 page 236 MCU PWB P J612 Mailbox or P612 Finisher P J Location Map Connected to Other end connected to 406 page 236 MCU PWB P J480 P J481 HCF Cabinet PWB 407 page 234 Laser Diode Driver P J456 MCU PWB...

Page 247: ...234 Test output connector P J478 AC Drive PWB 500 page 236 HVPS P J457 MCU PWB 501 page 235 page 238 LVPS P J420 ESS Mother PWB P J400 MCU PWB 502 page 235 page 238 LVPS P J420 ESS Mother PWB P J400 MCU PWB P J Location Map Connected to Other end connected to 600 page 236 Fuser STS P J462 MCU PWB 601 page 236 P109 Face Up Exit Sensor P133 Full Stack Sensor P210 Exit Gate Solenoid P J462 MCU PWB 60...

Page 248: ...WB P J20 AC Drive PWB P J1 LVPS PWB F55 page 238 Noise Filter PWB AC Power Cord Hot F56 page 238 Noise Filter PWB AC Power Cord Neutral F 5230 page 236 page 237 Main Interlock Switch P J458 MCU PWB F 5231 page 236 page 237 Main Interlock Switch P J458 MCU PWB BTR page 237 Bias Transfer Roll HVPS CB page 237 Charge Roll HVPS DTS page 237 Detack Saw HVPS DB page 237 Magnet Roll HVPS T4 page 238 Fram...

Page 249: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 235 Figure 7 3 P J Location Map2 Figure 7 4 P J Location Map3 ...

Page 250: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 236 Figure 7 5 P J Location Map4 Figure 7 6 P J Location Map5 ...

Page 251: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 237 Figure 7 7 P J Location Map6 Figure 7 8 P J Location Map7 ...

Page 252: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 238 Figure 7 9 P J Location Map8 ...

Page 253: ... Table 7 8 Signal Name Signal Name Description FUSER MAIN Switches Main Heat Rod Low On High Off FUSER SUB Switches Heat Rod 2 Low On High Off RELAY FUSER Fuser relay control that switches AC to the Heat Rods Low On High Off FAN HI Switches Fuser Fan speed Low High speed High Low speed FAN FAIL Monitors Fuser Fan Low Operating correctly High Not operating correctly ...

Page 254: ...On Low Off CNPN PWR2 Source for Key and LED High On Low Off CNPN PWR1 Source for Key and LED High On Low Off LCD DATA7 Logic line for Controller LCD LCD DATA6 Logic line for Controller LCD LCD DATA5 Logic line for Controller LCD LCD DATA4 Logic line for Controller LCD LCD ENB LCD Controller write signal LCD RS LCD Controller register select signal High Data register Low Instruction register CNPN S...

Page 255: ...ransmitting PPRDY Status indicating MCU initialization is complete and printer is On Line Low Printer initialization complete High Printer initialization not complete CPRDY Status indicating ESS initialization is complete Low ESS initialization complete High ESS initialization not complete RDY Status indicating that the MCU is ready to accept control commands Low Accept commands High Ignore comman...

Page 256: ...ables laser MCU to the LD Drive High No enabled Low Enabled APC CNT Monitors APC count RMOT ON Controls Scanner Motor High Off Low On RMOT SP1 Controls Scanner Motor speed SP3 1 010 Standby SP3 1 110 480dpi SP3 1 011 600dpi RMOT SP2 Controls Scanner Motor speed SP3 1 010 Standby SP3 1 110 480dpi SP3 1 011 600dpi RMOT RDY Monitors Scanner Motor speed Low Speed correct High Speed not correct ROS SOS...

Page 257: ...he ET Cartridge Low Quantity is low Hiigh Enough quantity Signal Name Description BTR MON Monitors BTR current level BTR SEL Switches BTR voltage High Positive voltage Low Negative voltage BTR RMT Controls the current value to the BTR DTS ON Switches Detack Saw and Chute Bias voltage High Off Low On BCRAC CLK Controls the AC voltage value to the BCR Negative logic BCRDC ON Switches BCR voltage Hig...

Page 258: ... PWM Switches Main Motor High Off Low On MC CLK Monitors the speed of the Main Motor FFAN PWR Switches the Fuser Fan High On Low Off FAN LOW Switches the speed of the Fuser Fan High Low speed Low High speed FUSER FAIL Monitors the Fuser Fan Low Operation correct High Operation incorrect INTLK SW1 Monitors Left Cover interlock switch High Cover open Low Cover closed ...

Page 259: ...rs level of paper in the Envelope Feeder CL FEEDM Controls MSI paper feed High No feed Low Feed CL FEED Controls Envelope feed High No feed Low Feed MSI DET Monitors presence of MSI High MSI not present Low MSI present ENV DET Monitors presence of Envelope Feeder High Envelope Feed not present Low Envelope Feeder present EMOT ON Switches Envelope Feed Motor High Off Low On SNR FEED Monitors paper ...

Page 260: ...CU PWB Table 7 16 Signal Name Signal Name Description SNR SIZE1 Analog signal from the Tray 1 Size Sensor Voltage levels 0VDC 5VDC SNR REGI Monitors paper flow at the Registration Sensor High Paper present Low No paper SNR NOP1 Monitors level of paper in Tray 1 SNR LVL1 Monitors position of Tray 1 High Not in position Low In position ...

Page 261: ...IT Monitors paper leaving the Fuser High Paper present Low Paper not present SNR FUT Monitors paper arriving at the Face Up output tray High Paper not present Low Pape present SOL GATE Controls Gate Solenoid High Face Down output Low Face Up output CL ICCW Controls Inverter CCW Clutch High Off Low On CLS ICW Controls Inverter CW Clutch High Off Low On OMOT FWD Controls forward motion of the Offset...

Page 262: ...scription OPT TX Status of Finisher or Mailbox sent to MCU High Mark Low No mark OPT RX Status of MCU sent to the Finisher or Mailbox High Mark Low No mark MBS DET Monitors presence of Mailbox High Mailbox not installed Low Mailbox installed FSNR DET Monitors presence of Finisher High Finisher not installed Low Finisher installed ...

Page 263: ...resent Low Paper not present INV SW Monitors paper at the Fuser Exit Sensor High Paper present Low Paper not present CL ICW Switches the Inverter CW Clutch High Off Low On CL ICCW Switches the Inverter CCW Clutch High Off Low On INTLK DUP Monitors the Duplex Cover Interlock Switch High Cover open Low Cover closed SNR DEXIT Monitors paper at the Duplex Exit Sensor High Paper present Low Paper not p...

Page 264: ...el of paper in Tray 2 High No paper present Low Paper present SNR TAROL2 Monitors paper between Tray 2 and Tray 3 High Paper present Low No paper SNR LVL2 Monitors position of Tray 2 High Not in position Low In position L H INTLK Monitors the Left Cover Interlock Switch High Cover open switch off Low Cover closed switch on CL FEED2 Controls Tray 2 paper feed High No feed Low Feed MOT LIFT2 Switche...

Page 265: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 251 7 2 Board Component Layout 7 2 1 C262 Main Board Component Figure 7 23 C262 Main Component a01 ...

Page 266: ...EPSON EPL N4000 EPL N4000 Chapter 7 Appendix Rev B 252 Figure 7 24 C262 Main Component Layout Soldered side a02 ...

Page 267: ...Parts Name for Top Cover Assembly Figure 7 25 Top Cover Assembly No in the Figure Unit Parts Name 1 COVER ASSEMBLY with 2 3 2 TOP COVER 3 LABEL SWITCH 4 CONSOLE PANEL 5 6 COVER ESS 7 STOPPER 8 FAN ASSEMBLY FUSER 9 COVER FUSER FULL 8 7 6 4 3 2 1 with 2 3 9 s s s s SER501FC FRONT J204 J417 PL11 4 23 PL11 3 16 ...

Page 268: ...22 Parts Name for Front Cover Figure 7 26 Front Cover No in the Figure Unit Parts Name 1 COVER ASSEMBLY 2 SPRING TORSION 3 COVER F R 4 PLATE MAGNET 5 DOCT BOTTOM 6 7 8 STUDIO DOCKING 9 SPRING EME FRONT 10 BRACKET DOCKING LEFT 11 12 BRACKET DOCKING REAR 99 KIT TRAY2 MOUNTING 8 10 12 ...

Page 269: ...dix Rev B 255 7 3 3 Rear Left and Right Cover Table 7 23 Parts Name for Rear Left and Right Cover Figure 7 27 Rear Left and Right Cover No in the Figure Unit Parts Name 1 COVER INNER LH 2 COVER RH 3 COVER ASSEMBLY REAR OEM 4 COVER REAR 1TM OEM ...

Page 270: ...RAY ASSEMBLY with 2 18 and Tray Unit End Guide 2 PLATE BOTTOM 3 PAD BOTTOM 4 PLATE TONGUE 5 SHAFT ASSEMBLY TONGUE 6 BEARING 7 GUIDE ASSEMBLY SIDE 8 LEVER 9 SHAFT 10 SPRING 11 PLATE SIDE 12 ACTUATOR 13 LINK 14 SPRING TORSION 15 STOPPER L F 16 HOUSING TRAY 17 WASHER 18 WASHER SIDE GUIDE FRONT 2 3 7 8 9 10 E E 11 14 12 17 17 13 5 4 6 PL2 2 1 PL2 2 2 15 16 s s s E E s s s s s s 1 with2 18 PL2 2 SER504...

Page 271: ...Guide Table 7 25 Parts Name for Tray Unit End Guide Figure 7 29 Tray Unit End Guide No in the Figure Unit Parts Name 1 GUIDE ASSEMBLY END 2 PLATE ASSEMBLY END 3 ACTUATOR ASSEMBLY 4 CABLE ASSEMBLY 5 SPRING EXTENSION 6 PULLEY 7 GUIDE ACTUATOR 99 KIT CASSETTE CABLES with 4 and 5 ...

Page 272: ... Name 1 SW ASSEMBLY PS 2 MOTOR ASSEMBLY 3 ACTUATOR SNR 4 SUPPORT ACTUATOR 5 PHOTO INTERRUPTOR 6 7 CHUTE ASSEMBLY FRONT 1T for Tray1 only 8 STOPPER TRAY F 9 STOPPER TRAY R 10 SOACER L 11 LINK STOPPER 12 SPRING TORSION 99 KIT ACTUATOR SENSOR ASSY with 3 and 4 C H E C K P O I N T All items except item 7 in the list above can be used with both Tray 1 and Tray 2 Item 7 can be used only for Tray 1 ...

Page 273: ...only 4 CLUTCH ONE WAY for Tray 1 only 5 FEEDER ASSEMBLY M N XIP with 6 14 6 ROLL ASSEMBLY 7 CLUTCH ASSEMBLY O W 8 CLUTCH GEAR 25T 9 BEARING 10 SHAFT FEED M N 11 GEAR 31T 12 GEAR 25T 13 SUPPORT ASSEMBLY NUDGER 14 BEARING 97 KIT TRAY 1 CLUTCH 1 4 98 KIT FEED ROLL with 6 Qty 6 99 KIT PICK UP GEAR TRAY 1 with 1 and 3 C H E C K P O I N T All items except item 3 and 4 in the list above can be used with ...

Page 274: ...XIP 3 SHAFT ASSEMBLY RET XIP 4 BEARING 5 ROLL ASSEMBLY 6 SPACER 7 CLUTCH ASSEMBLY FRICTION 8 SUPPORT RETARD 9 GEARING 10 GEAR 22 11 SPACER 12 GEAR STOPPER XIP 13 BEARING R 14 BEARING C 15 ROLLER ASSEMBLY S F 16 BEARING 17 BEARING 18 CHUTE ASSEMBLY FEED OUT 19 CHUTE ASSEMBLY FEED IN 20 GEAR 22 20 IOT H N 21 SUPPORT ASSEMBLY SPRING 22 SPRING 23 RETARD FRAME 98 RETARD ASSEMBLY TRAY1 HIGH with 1 and 9...

Page 275: ...Tray2 Figure 7 33 Tray Interface Tray2 No in the Figure Unit Parts Name 1 SW ASSEMMBLY PS 2 MOTOR ASSEMBLY 3 ACTUATOR SNR 4 SUPPORT ACTUATOR 5 PHOTO INTERRUPTER 6 7 CHUTE ASSEMBLY FRONT 2T for Tray 2 only 8 STOPPER TRAY F 9 STOPPER TRAY R 10 SPACER L 11 LINK STOPPER 12 SPRING TORSION 99 KIT ACTUATOR SENSOR ASSY with 3 and 4 ...

Page 276: ... 2 CLUTCH ASSEMBLY 3 GEAR 28T M N for Tray2 and High Capacity Feed only 4 BEARING FEED for Tray2 and High Capacity Feed only 5 FEEDER ASSEMBLY M N XIP with 6 to 14 6 FOLL ASSEMBLY 7 CLUTCH ASSEMBLY OW 8 CLUTCH GEAR 25T 9 BEARING 10 SHAFT FEED M N 11 GEAR 31T 12 GEAR 25T 13 SUPPORT ASSEMBLY NUDGER 14 BEARING 97 KIT TRAY 2 CLUTCH with 1 4 98 KIT FEED ROLL Qty 6 of item 6 99 KIT PICKUP GEAR TRAY2 wit...

Page 277: ...TARD ASSEMBLY XIP with 2 to 8 2 GEAR 22 T XIP 3 SHAFT ASSEMBLY RET XIP 4 BEARING 5 ROLL ASSEMBLY 6 SPACER 7 CLUTCH ASSEMBLY FRICTION 8 SUPPORT RETARD 9 10 GEAR 22 11 BEARING 12 GEAR STOPPER XIP 13 14 15 ROLLER ASSEMBLY T A 16 17 BEARING 18 CHUTE F O 1TM E 19 CHUTE FEED IN 20 GEAR 22 20 C H N 21 22 SPRING 23 BRACKET 98 KIT RETARD TAKEAWAY TRAY2 with 1 and 10 11 15 17 and 18 99 KIT TAKE AWAY GEAR TR...

Page 278: ...ts Name for Feed Drive Transmission Figure 7 35 Feed Drive Transmission No in the Figure Unit Parts Name 1 GEAR 16T 2 GEAR 30T 3 SHAFT C L T A 4 5 SUPPORT C L T A 6 GEAR 31T 7 GEAR 33T 8 GEAR 16 22 9 LINK ASSEMBLY 10 SPRING TORSION 11 BEARING 12 HARNESS CLAMP 99 KIT FEED DRIVE REPAIR with 1 2 and 6 11 ...

Page 279: ... in the Figure Unit Parts Name 1 SUPPORT FRONT COVER 2 SUPPORT REAR COVER 3 MSI DUPLEX CUPPORT ASSEMBLY 4 HARNESS ASSEMBLY DRAWER 5 SPRING DAMPER F 6 SPRING DAMPER R 7 MULTI SHEET INSERTER ASSEMBLY 8 MSI TOP COVER 9 MULTI SHEET TRAY SUPPORT 10 MULTI SHEET INSERTER HINGE STUD 11 MULTI SHEET TRAY SPRING 12 MSI HARNESS CLAMP SER513FC 7 with 8 12 PL 4 2 FRONT 1 2 3 4 5 6 8 9 10 11 12 s s s s s s s s s...

Page 280: ...L4 3 2 MSI LINK GEAR 3 MSI DRIVE GEAR ASSEMBLY 4 MSI DRIVE LINK SPRING 5 MSI TIE PLATE 6 MSI PAD 7 MSI PAD PIN 8 MSI PAD SHAFT 9 MSI PAD SPRING 10 MSI PAPER GUIDE 11 MSI BRACKET 12 MSI HOOK BRACKET FRONT 13 MSI HOOK BRACKET REAR 14 LATCH FRONT 15 MULTI SHEET INSERTER HOOK SPRING 16 MSI LOWER CHUTE 17 LATCH REAR SER514FB 2 3 4 5 7 8 9 6 10 11 12 13 14 15 15 16 17 S S S S S S S E E E E PL 4 3 1 with...

Page 281: ...APER SENSOR 11 MSI NO PAPER SENSOR BRACKET 12 MSI STOPPER 13 MSI WIRE HARNESS P604 J108 P107 P208 14 MSI NUDGER ROLLER ASSEMBLY with 15 to 25 15 MSI NUDGER ROLLER SUPPORT 16 MSI NUDGER GEAR COVER 17 MSI NUDGER GEAR 18 MSI NUDGER BEARING REAR 19 MSI GATE 20 MSI NUDGER ROLLER BEARING FRONT 21 MSI NUDGER ROLLER SHAFT 22 MSI NUDGER ROLLER 23 MSI FRICTION CLUTCH 24 MSI FRICTION CLUTCH SPACER 25 MSI FRI...

Page 282: ... 7 37 Parts Name for MSI Tray Assembly Figure 7 39 MSI Tray Assembly No in the Figure Unit Parts Name 1 MSI TRAY ASSEMBLY with 2 9 2 MSI PAD 3 MSI SIDE GUIDE 4 MSI SIZE SENSOR ASSEMBLY 5 MSI SIZE GUIDE SPRING 6 MSI SIZE GUIDE LINK 7 MSI TARY LOWER COVER 8 MSI TRAY 9 MSI TRAY UPPER COVER ...

Page 283: ...Parts Name 1 PANCHI ROLL ASSEMBLY with 2 to 7 2 HOLDING SPRING 3 SHAFT SPRING 4 CENTER BEARING 5 END BEARING 6 PINCH ROLLER 7 PINCH ROLLER BRACKET 8 COVER ASSEMBLY L H LOW with9 10 and 13 9 GROUNDING METAL 10 LEFT MIDDLE COVER 11 FRAME LH 12 TAKE AWAY SENSOR 1 13 TAKE AWAY SENSOR SHIELD SER517FB 2 2 3 3 4 4 5 5 6 7 9 10 11 12 S S S S 1 with 2 7 8 with 9 10 13 FRONT S S S S S S J101 13 PL1 2 9 PL11...

Page 284: ...G 5 PINCH ROLL CENTER BEARING 6 PINCH ROLLER 7 PINCH ROLL SPRING 8 PINCH ROLL BRACKET 9 LEFT LOWER COVER HANDLE ASSEMBLY 10 FONT FRAME 11 REAR FRAME 12 FRONT HINGE 13 REAR HINGE 14 FEED OUT CHUTE 15 LEFT LOWER COVER INTERLOCK SWITCH 16 TRAY 2 WELL TIE PLATE 17 SPRING EME 18 CAP 19 TAKE AWAY SENSOR 20 SUPPORT REAR 21 WASHER 22 INTERLOCK SENSOR HARNESS 23 TAKE AWAY SENSOR SHIELD SER518FC 2 4 4 5 5 7...

Page 285: ...ure 7 42 Registration No in the Figure Unit Parts Name 1 CLUTCH ASSEMBLY REGISTRATION 2 BEARING 3 ROLLER ASSEMBLY REGISTRATION 4 CHUTE ASSEMBLY REGISTRATION 5 CHUTE REGISTRATION 6 ELIMINATOR 7 SENSOR 8 RESISTOR ASSEMBLY 9 FRAME L H SER519FB 4 with 5 6 1 2 2 3 5 6 7 8 9 S S S S E E E FRONT J100 J200 PL11 4 18 PL11 4 21 ...

Page 286: ...Unit Parts Name 1 SHAFT HINGE 2 SHAFT HINGE GEAR m n 3 COVER ASSEMBLY L H XIP 4 CHUTE LOWER 5 GUIDE PAPER 6 SPRING COMP 7 CHUTE ASSEMBLY L H 8 SPRING EXTENSION 9 ROLLER ASSEMBLY REGISTRATION L H 10 CHUTE ASSEMBLY REGISTRATION L H 11 GUIDE PAPER 12 GUIDE PAPER 13 PULLEY 14 SUPPORT L H COVER SER520FA 1 2 4 5 6 6 8 8 9 10 11 12 13 13 14 14 S S S S S S S 3 with 4 14 PL 6 3 7 with 8 13 PL 6 3 FRONT ...

Page 287: ...ort Chute Assembly No in the Figure Unit Parts Name 1 SHAFT HINGE 2 SHAFT HINGE GEAR m n 3 COVER ASSEMBLY L H XIP 4 CHUTE LOWER 5 GUIDE PAPER 6 SPRING COMP 7 CHUTE ASSEMBLY L H 8 SPRING EXTENSION 9 ROLLER ASSEMBLY REGISTRATION L H 10 CHUTE ASSEMBLY REGISTRATION L H 11 GUIDE PAPER 12 GUIDE PAPER 13 PULLEY 14 FRAME L H F 15 FRAME L H R 16 HANDLE ASSEMBLY L H ...

Page 288: ...22 ROS Assembly Table 7 43 Parts Name for ROS Assembly Figure 7 45 ROS Assembly Figure 7 46 Xerography and Development Transport Chute Assembly No in the Figure Unit Parts Name 1 ROS ASSEMBLY SER522FC 1 S S S S FRONT J207 J106 J407 J430 J416 PL11 4 12 PL11 3 15 ...

Page 289: ...PTY SENSOR 15 TONER SENSOR SPRING 16 CRU CONNECTOR ASSEMBLY with 17 20 17 CRU CONNECTOR J454 J606 18 CRU CONNECTOR BRACKET 19 CRU CONNECTOR SPRING 20 STUD SCREW 21 BTR GUIDE 22 CB ASSEMBLY 23 CRU INTERLOCK SWITCH ASSEMBLY with 24 and 25 24 CRU INTERLOCK SWITCH BRACKET 25 CRU INTERLOCK SWITCH ASSEMBLY 26 27 PLATE CONTACT C 28 PLATE CONTACT D 29 PWB STUD 30 EP CARTRIDGE Customer Replaceable Unit CRU...

Page 290: ...endix Rev B 276 7 3 24 Fuser Assembly Table 7 45 Parts Name for Fuser Assembly Figure 7 48 Fuser Assembly No in the Figure Unit Parts Name 1 FUSER ASSEMBLY 115V Customer Replaceable Unit CRU FUSER ASSEMBLY 220V Customer Replaceable Unit CRU ...

Page 291: ...INK SOLENOID 4 SPRING 5 OFFSET MOTOR 6 LOWER CHUTE ASSEMBLY with 7 15 7 PINCH ROLLER SPRING FRONT 1 8 PINCH ROLLER SPRING REAR 1 9 PINCH ROLLER SPRING FRONT 2 10 PINCH ROLLER FRONT 11 PINCH ROLLER REAR 12 FUSER ROLLER REAR 13 LOWER CHUTE 14 ELIMINATOR 15 PINCH ROLL SPRING REAR 2 16 EXIT SENSOR 17 EXIT ACTUATOR 18 EXIT SESOR SPRING 19 EXIT SENSOR BRACKET 20 BRACKET ASSEMBLY FRONT 21 LOWER CHUTE FAC...

Page 292: ...it Parts Name 1 BEARING 2 ROLLER ASSEMBLY EXIT FUT 3 GEAR 19 ASSEMBLY 4 OFFSET ROLLER ASSEMBLY 5 OFFSET RACK 6 OFFSET BRACKET 7 OFFSET ROLLER SLEEVE 8 OFFSET ROLLER 9 OFFSET ROLLER BEARING REAR 10 OFFSET ROLLER BEARING FRONT 11 OFFSET SHAFT 12 OFFSET SHAFT PIN 13 GEAR 19 SER527FA 4 with 5 12 FRONT 1 1 1 1 2 3 5 6 7 8 9 10 11 12 13 E E PL 9 1 1 PL 9 1 13 K K K K ...

Page 293: ...UPPER 2 SWITCH ASSEMBLY 3 PLATE TIE 4 SPRING PLATE 5 SPRING ASSEMBLY PINCH H 6 SPRING ASSEMBLY PINCH I 7 PINCH ROLLER FRONT 8 PINCH ROLLER REAR 9 EXIT UPPER CHUTE 10 GUIDE PAPER 11 GUIDE PAPER 12 EXIT MIDDLE CHUTE 13 EXIT GATE 14 EXIT GATE SPRING 15 SPRING ASSEMBLY PINCH J 16 SPRING ASSEMBLY PINCH K SER528FB SER528FB 1 with 2 16 2 3 4 4 5 6 7 8 9 15 16 11 12 10 13 14 PL9 1 21 PL9 1 22 PL9 1 20 s s...

Page 294: ... 1 EXIT DRIVE ASSEMBLY with 2 19 2 EXIT DRIVE SUPPORT 3 EXIT DRIVE IDLER PULLEY 4 EXIT GEAR 1 5 EXIT GEAR 2 6 EXIT GEAR BRACKET 7 EXIT IDLER GEAR 8 EXIT RATCHET SPRING 9 INVERTER COW GEAR 10 INVERTER CLUTCH 11 INVERTER CCW SHAFT 12 BEARING 13 INVERTER CW GEAR 14 15 INVERTER CW SHAFT 16 INVERTER EXIT GEAR REAR 17 INVERTER EXIT GEAR FRONT 18 INVERTER ERACKET 19 EXIT WIRE HARNESS J602 J218 J219 ...

Page 295: ... B 281 7 3 29 Main Drive Assembly Table 7 50 Parts Name for Main Drive Assembly Figure 7 53 Main Drive Assembly No in the Figure Unit Parts Name 1 MAIN DRIVE ASSEMBLY 2 HARNESS CLAMP SER530FC 1 S S S S S S J205 P204 J460 2 PL11 4 23 PL10 2 13 PL6 1 8 ...

Page 296: ...s Name 1 FRAME ASSEMBLY EXIT REAR with 2 9 2 GEAR 22T 3 BRACKET ASSEMBLY 4 BRACKET ASSEMBLY 5 BRACKET 6 SPRING 7 BRACKET 8 FRAME ASSEMBLY EXIT REAR 9 STOPPER HOOK 10 HARNESS CLAMP 1 11 HARNESS CLAMP 2 12 HARNESS CLAMP 3 13 DRAWER CONNECTOR P12 J23 J600 14 CONNECTOR P104 15 CONNECTOR P602 SER531FE 2 3 4 5 6 7 8 9 10 11 12 13 S S S S S E 1 with 2 9 J23 J600 P12 FB P104 P602 15 14 PL11 4 21 ...

Page 297: ...2 NOISE FILTER PWB 100V 120V NOISE FILTER PWB 220V 3 BRACKET N F 4 PWB STUD 5 HARNESS CLAMP 6 MAIN POWER HARNESS F51 F54 J1 J13 J19 J20 7 MAIN SWITCH 8 BRACKET ASSEMBLY SWITCH 9 OUTLET 10 BRACKET FINISHER 11 PS ASSEMBLY M4 100V 120V PS ASSEMBLY M4 220V SER532FC 1 2 3 4 4 5 5 6 7 8 11 S S S S S S S S S S S S S S S PL11 2 21 9 10 J1 F51 54 J501 J420 J400 J502 J20 J19 J13 J235 J401 F56 P499 P478 F55 ...

Page 298: ...R PWB 220V 2 3 4 HVPS 5 MCU ASSEMBLY 6 MCU PWB 7 BRACKET MCU 8 COVR MCU 9 10 LEFT COVER INTERLOCK SWITCH 11 INTERLOCK SWITCH BRACKET 12 INTERLOCK SWITCH LEVER 13 SUPPORT HARNESS 14 HARNESS CHANNEL 15 16 17 HARNESS CLAMP 2 18 PWB SUPPORT 19 HARNESS CLAMP 4 20 BRACKET AC DRIVE 21 22 HCF CONNECTOR 23 DUPLEX UNIT CONNECTOR 24 MAIL BOX CONNECTOR 25 OPTION CONNECTOR BRACKET 26 HARNESS ASEEMBLY EXIT 27 T...

Page 299: ...Table 7 54 Parts Name for Controller Assembly Figure 7 57 Controller Assembly No in the Figure Unit Parts Name 1 CONTROLLER ASSEBLY 4 BUSHS SADDLE 8 BOX ASSEMBLY 9 BUSH SADDLE 10 COVER ESS 11 COVER SIMM 14 CONTROLLER BOARD 15 HARNESS ASSEMBLY ROS V 16 HARNESS ASSEMBLY CONSOLE 17 CORE ...

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