Epson EPL-N4000 Service Manual
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Epson EPL-N4000 Service Manual

Epson EPL-N4000 Service Manual

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Laser Printer
EPSON EPL-N4000 / EPL-N4000+
®
SEPG98002

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Summary of Contents for Epson EPL-N4000

  • Page 1  Laser Printer EPSON EPL-N4000 / EPL-N4000+ ® SEPG98002...
  • Page 2 SEIKO EPSON CORPORATION. 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.
  • Page 3 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/ RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

  • Page 4: About This Manual

    It may also provide additional information that is Provides preventive maintenance procedures and the related to a specific subject, or comment on the results lists of Epson-approved lubricants and adhesives achieved through a previous action. required for servicing the product.

  • Page 5: Safety Information

    Safety Information To prevent accidents during a maintenance procedure, strictly observe Safety Precautions the Warnings and Cautions. Do not do anything that is dangerous or not within the scope of this document. POWER SUPPLY AND ELECTRICAL COMPONENTS Do not do anything that is dangerous even if not specifically described in this manual.
  • Page 6 MECHANICAL COMPONENTS LASER ASSEMBLY If you service a driving assembly (e.g., gears), first turn off the power This printer uses a laser as part of the printing process. and unplug the power cord. Then manually rotate the assembly. The laser beam is a very powerful, straight, narrow beam of light that produces extreme heat at its focal Do not try to manually rotate or stop the drive point.

  • Page 7: Safety Components

    Safety Components Make sure fuses, interlock switches, covers and panels 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: Table Of Contents

    EPSON EPL-N4000/EPL-N4000+ Contents Product Description Maintenance Mode ................. 46 Operation .................... 46 Features ......................2 Engine Status Sheet ................47 Initialization Process ................51 Changes from EPL-N4000 to EPL-N4000+ ..........5 Basic Specification ..................8 Operating Principles Controller Specification ................8 Engine Specification .................
  • Page 10 EPSON EPL-N4000/EPL-N4000+ Charge ....................69 Inoperative Main Drive Assembly ............105 Exposure ....................70 Inoperative Paper Feed Drive .............. 107 Develop ....................71 J1-2 is not displayed when the EP Cartridge is out of toner ....108 Transfer ....................72 Inoperative Interlock Switch ..............
  • Page 11 EPSON EPL-N4000/EPL-N4000+ Right Cover ..................141 Removal ................... 158 Removal ................... 141 Installation ..................158 Installation ..................141 Tray 2 Feed Clutch ................159 Control Panel ..................142 Removal ................... 159 Removal ................... 142 Installation ..................159 Installation ..................142 Tray 2 Feeder Assembly ..............
  • Page 12 EPSON EPL-N4000/EPL-N4000+ Installation ..................175 ROS Assembly ..................191 MSI Friction Clutch ................176 Removal ................... 191 Removal ................... 176 Installation ..................191 Installation ..................176 EP Cartridge (Toner Cartridge) ............192 MSI No-Paper Sensor Assembly ............177 Removal ................... 192 Removal ...................
  • Page 13 EPSON EPL-N4000/EPL-N4000+ Removal ................... 206 ESS Box ....................223 Installation ..................206 Removal ................... 223 Upper Chute Assembly ................ 207 Installation ..................223 Removal ................... 207 Installation ..................207 Adjustment Exit Roll Assembly ................208 Removal ................... 208 Installation ..................208 Maintenance Full Stack Sensor .................
  • Page 14 EPSON EPL-N4000/EPL-N4000+ Registration ..................271 Left Upper Cover Assembly ..............272 Transport Chute 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 ................

  • Page 15: Product Description

         PRODUCT DESCRIPTION...

  • Page 16: Features

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.1 Features Options: large-capacity paper unit (500 sheets(A4 to A3) on MP tray + 1000 sheets on cassette 1 + 1000 sheets (A4, Letter, and Executive sizes) on cassette 2) EPL-N4000/N4000+ is non-impact page printer applied with laser xero- Refer to Table 1-6, “Feeding Method,”...
  • Page 17 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Rewriting flash ROM DIMMs SOFTWARE FEATURES Flash ROM DIMMs in slot A and the program slot can be rewritten Supported emulation from any I/F. (Not open to users except slot A.) PCL5e Enhanced Micro Gray support, paper...
  • Page 18 O (The RAM sorter is not used when HDD is installed) Utilities for Printer Setting Table 1-3. Utilities for Printer Setting Option EPL-N4000 EPL-N4000+ EPSON Remote Control Panel -- (panel setting utility) EPSON Net!2 for Intranet --(Network Setting) EpsonNet WebAssist (built-in) O (panel, network setting)

  • Page 19: Changes From Epl-N4000 To Epl-N4000

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.2 Changes from EPL-N4000 to EPL-N4000+ Cover F Open Cover G Open Here explains the changes from EPL-N400 to EPL-N4000+. Cover H Open DIFFERENCE OF PANEL SETTING Staple Cover Open Finisher Not Connect “Printing Menu”, “Device Menu” “ESC/PS Environment Menu” and “ESC/Page Environment Menu”...
  • Page 20 RECEIVE DATA SPOOLING, ELECTRONIC SORTING AND PS added to the built-in network. FONT DOWNLOADING WERE ADDED FOR USE OF HDD Epson Net Web Manager, WinAssist and MacAssist were added to The following were added to the panel setting items. the utilities packed with the product.
  • Page 21 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Setup Menu/Stacker Page Count in the Setup Menu was changed to Total Pages. Network Config was added to the Network Menu “DHCP”, a choice of Get IP Address in the Network Menu, was changed to “Auto”.

  • Page 22: Basic Specification

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.3 Basic Specification HOST INTERFACES Host Interfaces: 1.3.1 Controller Specification Standard: Parallel IEEE 1284 compliant, bidirectional, B-type connector. Compatibility, Nibble, ECP Ethernet 10 BaseT/100BaseTX CPU: 64-bit RISC CPU VR4700 133MHz Option: Type B I/F slot (1 slot)

  • Page 23: Engine Specification

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.3.2 Engine Specification MISCELLANEOUS Printing Method: Electro-photographic printing, utilizing Mechanical control function is not built in. semiconductor laser beam scan and single- component magnetic toner. Resolution: 600 dpi Printing Speed: Table 1-4. Printing Speed (PPM)

  • Page 24: Paper Specification

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Time to print first sheet Feeding Method Table 1-5. Time to print first sheet(sec.) Table 1-6. Feeding Method One-Side Printing Duplex Printing Paper Volume thickness High Capacity High Capacity Paper Feeding Method (sheet) Paper Size...
  • Page 25 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Table 1-7. Paper Size and Mounting Direction Supported paper size: Width=100 to 297 mm Length=139.7 to 431.8 mm Mounting Direction Paper Duplex Paper Feed Standard: Only one side for each size and each Type...

  • Page 26: Electrical Specification

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.3.4 Electrical Specification Guaranteed print area Printable area Power Consumption (printer body) 297 mm (width) x 431.8 mm (length) Table 1-9. Power Consumption Guaranteed print area 120V 200V Entire paper area, excluding 4.0 mm from each edge of the...

  • Page 27: Reliability, Durability And Maintainability

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.3.5 Reliability, Durability and Maintainability Transient Outage: DIP 100% (at rated voltage-100%) 1 cycle Electrostatic Tolerance: Less than 8KV MPBF: 400,000 pages (one-side printing) No damage to image Print Volume: Maximum 150,000 pages/month Surge Current:...
  • Page 28 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Figure 1-3. Skew Product Life: 1500,000 sheets or 5 years in use, whichever comes first. Maintenance: MTTR: Average less than 40 minutes. Rev.B...

  • Page 29: Safety Approval

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.3.6 Safety Approval Power consumption: In compliance with International Energy Star program. Safety Regulation Others: Table 1-14. Safety Regulation Toner: No effect on human health. (In compliance with OSHA, Model Applicable Standard TSCA, EINECS, worker safety laws and CSCL) 120V •...

  • Page 30: Environmental Specification

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.3.7 Environmental Specification Direction Three directions(X,Y,Z) 1.3.7.1 Operating Environment(including optional parts) Time 50 minutes in each direction Table 1-17. Operating Condition Item Condition Temperature 0 to 32 C Humidity 15 to 85%RH (without condensation)

  • Page 31: External Dimension And Weight

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.3.8 External Dimension and weight Exterior dimension 642 mm (W) x 523 mm (D) x 486 mm (H) (No optional parts) Figure 1-5. Exterior Dimension(with Mailbox, Duplex unit and High Figure 1-4. Exterior Dimension(No optional parts) Capacity Feeder) Rev.B...

  • Page 32: Other Specifications

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Weight (No optional parts included) density, toner-save mode, etc.). 41.1 Kg (120V) ** This rotation corresponds to approximately 45000 sheets 43.6Kg (200V series) printing at A4 continuous printing(landscape setting). This OPC drum life is indicated by minute(s) calculated from the turn on Optional parts weight the engine status sheet.

  • Page 33: Host Interface Specification

    MFG:EPSON; CMD:PJL, ESCPL2, ESCP9,PRPXL24-01,PCL, HPGL2-01, ESCPAGE-04; MDL: XXXX; Figure 1-6. Interface Part CLS:RPINTER; DES: EPSON XXXX; The following table shows which host interface configurations can be used. When Adobe PS 3 kit is installed Table 1-21. Interface MFG:EPSON; Parallel I/F...

  • Page 34: Ethernet Interface Specification

    RARP, BOOTP, DHCP, SNMP, HTTP, SNMP, ENPC) CLS:PRINTER; Apple Talk (ELAP, DDP, ATP, PAP, AARP, NBP, ZIP, RTMP, DES: ****; SNMP, ENPC) CID:****; ENPC (EPSON Network Peripheral Control Protocol) from EPL- When Adobe PS 3 kit is installed N4000+ MFG:****; Connector type:RJ45 CMD:PJL, EJL, ESCPL2, ESCP9,PRPXL24-01,PCL,HPGL2-01, ESCPAGE-04;...
  • Page 35 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description NOTE: *1 Added with Adobe PS 3 kit is installed. Pin Assignments *2 RCC and DIAG cannot be selected by users. Table 1-22. Pin Assignment Signal N.C. N.C. N.C. N.C. Printer Name: Factory default setting is the same as Product...

  • Page 36: Type-B Interface

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.3.12.3 Type-B Interface Emulation Type: When emulation is “Auto”, This printer is fitted as standard with a Type B option interface slot. Adobe PS 3 kit not started: AUTO (Emulation Type 1,2,3..) Adobe PS 3 kit started: EJL (POSTSCRIPT-00, other Emulation Main system type:MTP600dpi, PW7016dt600dpi, PRG(****)rev, Type 1,2,3...)

  • Page 37: Operation

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4 OPERATION Off = No effective received data is left in the printer. But if the control code is not ended, LED is still On. 1.4.1 Control Panel Blinking = Processing the data. Error(red):...
  • Page 38 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Form Feed:If Data light is On in the not-ready condition, the printer prints the received data on the one sheet by This printer has EEPROM and hard disk drive HDD pressing this button. If the plural numbers of printing is (option) inside and records various setting values selected, the printer prints out that number.
  • Page 39 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Each switch operation for the panel setting is as follows. Table 1-26. Switch operation for the panel setting On-line Panel Setting Panel setting Table 1-25. Switch operation for the panel setting Switch (ready) Not-ready...

  • Page 40: Status Sheet

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.1.1 Status Sheet When Adobe PS 3 kit is installed: “Adobe PS 3 kit Menu, Error Sheet” is added to “Default Settings” “Adobe PostScript3” is added Engine Status Sheet is prepared and Jam Counter is not printed.

  • Page 41: List Of Setting Items

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.2.2 List of Setting Items NOTE: *1 The order of items appearing on the Test Menu varies depending on whether the version is EPL-N4000 or EPL- The following is a list of the printer setting items. Note that the box in the N4000+.
  • Page 42 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description NOTE: *1: Appears only when the MP tray is installed, and can then be Table 1-29. Printer Setting selected. The MP tray does not support the envelope size to Menu Item Value which the ENV tray corresponds.
  • Page 43 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description NOTE: *1:Appears only when the MP tray is installed, and can then be Table 1-30. Printer Setting selected. The MP tray does not support the envelope size to Menu Item Value which the ENV tray corresponds.
  • Page 44 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description NOTE: *1: EpsonNet WebAssist cannot set/change this item. Table 1-31. Printer Setting *2: Appears only when the Type B interface card is installed. Menu Item Value *3: The STANDBYTIME command (not open) of EJL is also Setup Menu •...
  • Page 45 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description NOTE: *1: Automatically returns to “Network Config =No” after Table 1-32. Printer Setting shifting to “Ready”. Menu Item Value *2: Appears only when “Network Config=Yes”, and can then Network • Network config • No, Yes (added in EPL-N4000+) Menu be selected.
  • Page 46 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description NOTE: **: Not displayed on the panel. Not printed on the status sheet. Table 1-33. Printer Setting Can be set and obtained with EJL. Menu Item Value *1: Appears only when a down load font is present.
  • Page 47 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Table 1-34. Printer Setting Table 1-35. Printer Setting Menu Item Value Menu Item Value GL2 Menu • GL-Mode • GLlike, LJ4GL2 ESCP2 Menu • Auto CR • On , Off • Scale • Off , A0, A1, A2, A3 •...
  • Page 48 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Table 1-36. Printer Setting Table 1-37. Information Control and its Method Menu Item Value Menu Item Value FX Menu • Font • Courier , Prestige, Roman, Sans serif, Support • HDD Format Script, Orator S, OCR A, OCR B Menu •...

  • Page 49: Description Of Setting Item And Model-Dependent

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.2.3 Description of Setting Item and Model-dependent The following is a list of user setting items not included in the setting menu. They are not cleared by Selc Type Init of the Setup Menu on the Described below are model-dependent specification details of the panel.

  • Page 50: Printing Menu

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.2.4 Printing Menu The paper type to be specified in paper feed selection is specified by the PCL5 command and ESC/Page command only. In a printer mode without such specification, the same operation PRINTING MENU/OUT BIN as when Plain is specified is performed.
  • Page 51 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description printing up to a quantity of 10 can be exceeds 10, a quantity of 1 only is Stacker=+Face-down : bin 10>bin 9>...>bin 1>Face-down ejected to Multibin 1 and the message “Collate was disabled” is Stacker=No Face-down : bin 10>bin 9>...bin1 (valid with EPL-...
  • Page 52 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description The number of sheets and the number of copies ejected are reset with LIMITATIONS ON PAPER EJECT UNITS no paper detection. Users should remove all paper from the stacker in Multibin (including when Multibin = Stacker and Out Bin = Stacker) advance when printing a large quantity of copies.
  • Page 53 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description PRINTING MENU/OFFSET STACKING PRINTING MENU / STAPLE POSITION Designate the staple position as a logic position Specify whether to perform Offset Stacking when outputting paper to a L: Left-hand side paper eject unit with a shifter. This setting is for all the paper eject units R: Right-hand side (used for right-handed binding in Japan.
  • Page 54 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description If an attempt is made to print the 51st sheet when 50 sheets or more Table 1-42. are to be stapled, the warning “Can’t Staple” appears and paper is Staple A4/A5/B5/LT/ A3/B4/LG/ Orientation Binding...
  • Page 55 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Even if the combination of staple designation is changed during one Support Menu/HDD Format job, the first designated staple position is valid, and the 180 degrees Press the setting execution switch, and HDD initialization rotation is performed throughout the copy.
  • Page 56 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Fuser Counter Clear (Maintenance Menu)* FU Counter Clear (Maintenance Menu)* The serviceman executes this operation only once when the fuser is The serviceman executes this operation only once when around replaced. Fuser Counter indicated on the engine status sheet Face-up indicated on the engine status sheet become zero.

  • Page 57: User Setting Items Not Included In The Setting Menu

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.3 User setting items not included in the setting menu The following is a list of user setting items not included in the setting menu. They are not cleared by Selc Type Init of the Setup Menu on the panel.

  • Page 58: Special Operation Functions

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.4 Special Operation Functions Turn on the power, pressing “On-line” switch, “Continue” switch and “Menu” switch. H e re lists the spe cia l op eration fu nctions su ppo rted b y th is printer. T he functio ns a re no t op en to users e xcept for the hexade cim al d um p functio n, Total Counts, LC1 to LC5 Counter, etc., which are...

  • Page 59: Rev.b

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Program ROM Up Date Printing of error sheet This function updates program DIMM, which is connected to the Operation: program socket on the main board. Press Enter twice after CPU reset at the occurence of a service Operation call error.

  • Page 60: Maintenance Mode

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.5 Maintenance Mode MP Counter Clear This function is performed when the Feed Roller of the tray is Maintenance menu is added to the setting menu, then, the printer exchanged. MP counter on the status sheet becomes 0 and +1 is performs warm boot and enable to execute the maintenance menu.

  • Page 61: Engine Status Sheet

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.6 Engine Status Sheet Fuser change This indicates how many times the Fuser is exchanged and +1 Engine status sheet prints out the data at the engine side. Usage is added when performing Fuser Counter Clear at the condition of each following mechanism is indicated.
  • Page 62 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Output ...30% The printing volume whose printing occupancy(duty) exceeds Duplex 3% and the value is counted at the controller side. This indicates how many papers passed through the Duplex unit after DM Counter Clear is performed at the maintenance menu.
  • Page 63 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Custom Table 1-44. Information Control and its Method The printing volume of no-fixed size and the value is counted at Name of Count Clear Information Place Range Condition Condition the controller side. Since the frequently used paper size or...
  • Page 64 EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description Table 1-45. Information Control and its Method Table 1-46. Information Control and its Method Name of Count Name of Count Clear Information Place Range Condition Clear Condition Information Place Range Condition Condition Face Down...

  • Page 65: Initialization Process

    EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description 1.4.7 Initialization Process Cold Start Processing This initialization is activated by turning the power on, and perform In this printer, following initialization process are performed automati- various checking first. cally or manually. The printer goes to the On-line(ready) condition after Processing: initialization process is completed successfully.

  • Page 66: Operating Principles

         OPERATING PRINCIPLES...

  • Page 67: Mechanical Drive

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.1 Mechanical Drive 2.1.2 Mechanical Drive Component EPL-N4000/N4000+ is made up of 4 major components. 2.1.1 Overview 1. Offset Motor A +24VDC motor. Mechanical Drive is a term that is used to describe both the rotation of the printer motors and the action of the gear clusters and clutches that 2.

  • Page 68: Offset Motor

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.1.2.1 Offset Motor The Main Drive Assembly gears transmit the motor drive to the Fuser Drive Gear. When the Left Upper Cover is closed, the DTS Link Rod In Offset, printed papers are ejected into either rear side or front side.

  • Page 69: Lift Up Motor 1 And Lift Up Motor 2

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.1.2.3 Lift Up Motor 1 and Lift Up Motor 2 2.1.2.4 Motor Control When a Paper Tray is installed in the printer, the MCU PWB switches The MCU PWB provides power for and controls the operation of the on the Lift Up Motor.

  • Page 70: Paper Path

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.2 Paper Path During simplex printing the Offset Roll drives the paper into the Output The Paper Path is the physical route that a sheet of paper takes through tray. During duplex printing, the Offset Roll rotation is reversed and the the printer during a print cycle;...

  • Page 71: Paper Path Components

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.2.1 Paper Path Components MSI Paper Size Sensor monitors the size of paper in the Tray. MSI Feed Clutch transmits drive to the Feed Roll and Nudger The Paper Path is made up of a number of major components and Roll.
  • Page 72 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Inverter CW and CCW Clutches transmit Main Motor drive, forward and reverse, to the Offset Rolls. Offset Roll and Pinch Roll drive the sheet of paper either forward into the Output Tray or in reverse to the Exit Roll and on to the Duplex Module.

  • Page 73: Paper Feed, Transport And Paper Eject Drive

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.2.2 Paper Feed, Transport and Paper Eject Drive 2.2.3 Mechanical drive for paper fed from the MSI The Main Drive Assembly provides the mechanical drive for the majority The Main Motor provides mechanical drive for MSI feed(Multi Sheet of the Paper Path components.

  • Page 74: Mechanical Drive For Paper Fed From Tray1

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.2.4 Mechanical Drive for Paper Fed from Tray1 2.2.5 Mechanical Drive for Paper Fed from Tray2 The Main Motor provides mechanical drive for MSI feed. The Drive The Main Motor provides mechanical drive for Tray 2 feed. The Drive Assembly transmits drive to the MSI Feed Clutch.

  • Page 75: Mechanical Drive For Registration

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.2.6 Mechanical Drive for Registration 2.2.7 Mechanical Drive for the Drum and BTR The Main Motor provides mechanical drive for the Registration Roll. The The Main Motor provides mechanical drive for the Drum and BTR. The Main Drive Assembly transmits drive to the Registration Clutch.

  • Page 76: Mechanical Drive For The Fuser

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.2.8 Mechanical Drive for the Fuser 2.2.9 Mechanical Drive for Exit Drive The Main Motor provides mechanical drive for the Fuser Assembly. The The Main Motor provides mechanical drive for the Offset and Exit Rolls.

  • Page 77: Mechanical Drive For Offset

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.2.10 Mechanical Drive for Offset 2.2.11 Paper Path Component Control The Offset Motor provides mechanical drive for the Offset Rolls. The The logic on the MCU PWB controls the Paper Path components. Offset Motor transmits drive to the Offset Bracket. If the printer is Sensors along the paper path monitor the movement of each sheet of running in Offset mode, the MCU switches on the Offset Motor.

  • Page 78: Ros (Raster Output Scanner)

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.3 ROS (Raster Output Scanner) 2.3.1 ROS Components The ROS Assembly is made up of one major component housing a The ROS (Raster Output Scanner) is the mechanism that carries out number of sub-components.

  • Page 79: Ros Operation

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Scanner Motor Assembly The Drum Mirror is aligned at an angle so the mirror reflects the The Scanner Motor Assembly is attached to the Scanner Motor sweeping beam down onto the surface of the Drum. The combination of Assembly PWB.

  • Page 80: Image Resolution

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.3.2.1 Image Resolution 2.3.2.2 ROS Control This printer has an print image resolution of 600 dpi (dots per inch). The Laser Diode PWB controls laser power monitoring and adjustment. Print image resolution is determined by the number of dots (or pixels) The MCU PWB controls the rest of the ROS Assembly functions.
  • Page 81 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles ROS Safeguards There are two safety interlocks built into the CRU cavity. A molded tab located at the end of the EP Cartridge actuates Interlock SW1 which, along with SW2 (the Left Cover Interlock), controls +24VDC out of the MCU PWB.

  • Page 82: Print Process

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.4 Print Process Print process step of this printer is to form the toner image on the drum surface, transfer this image to the paper, and fuse the transferred toner image to the paper.

  • Page 83: Charge

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.4.1 Charge The Bias Charge Roll (BCR) places a uniform negative electrostatic charge on the surface of the drum. The drum surface is made of a photoconductive material that holds an electrical charge as long as the drum remains in darkness.

  • Page 84: Exposure

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.4.2 Exposure The Raster Output Scanner (ROS) generates a beam of laser light. Image data received from the print controller modulates this beam, turning it on and off according to image information that is received from the host computer and software.

  • Page 85: Develop

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.4.3 Develop The toner contained within the EP Cartridge has a slight magnetic property that causes it to adhere to the Magnetic Roll. The Charge Metering Blade (CM Blade) spreads the toner into a very thin layer on the Magnetic Roll.

  • Page 86: Transfer

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.4.4 Transfer 2.4.5 Detack As the paper travels between the BTR and the drum surface, the Bias After the toner image transfers to the surface of the paper, the Detack Transfer Roll (BTR) applies a positive charge to the back of the printing Saw (a thin strip of metal that resembles a saw blade) applies a low paper.

  • Page 87: Fusing

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.4.6 Fusing 2.4.7 Clean When a sheet of paper leaves the transfer area, static electricity holds The Cleaning Blade removes any toner that remains on the drum after the unfused toner image to the surface of the paper. After transfer, the the transfer process.

  • Page 88: Print Sequence

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.5 Print Sequence From Registration Roll to BTR/Drum Paper Feeding from Tray1 Figure 2-33. From Registration Roll to BTR/Drum Figure 2-32. Paper Feeding from Tray1 Rev.B...
  • Page 89 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Fusing and Paper Eject Paper Feed from Tray2 Figure 2-34. Fusing and Paper Eject Figure 2-35. Paper Feeding from Tray 2 Rev.B...

  • Page 90: Operating Principles For Power Supply Circuit

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.6 Operating Principles for Power Supply the Charge (CR), Transfer (TR), Developer Bias (DB), and Detack (DTS) voltages, and sends them on to the EP Cartridge and to the Bias Circuit Transfer Roll (BTR).
  • Page 91 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Low Voltage Power Supply (LVPS) If either SW1 is open (the EP Cartridge removed) or SW2 is open (the Takes filtered AC voltage and converts it into regulated +24VDC Left Front Cover is open) the MCU PWB cuts all +24VDC output from and +5VDC.
  • Page 92 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Figure 2-37. Power Supply Component Rev.B...

  • Page 93: Printer Control

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.7 Printer Control Printer Control is a broad term that is used to describe the printer resources that monitor and control the actions and operations of the Controller printer; from warm-up, through the print cycle, to machine error detection.
  • Page 94 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Sr1310xa Figure 2-39. Printer Control Component Rev.B...

  • Page 95: Printer Control Components

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.7.1 Printer Control Components Control Panel Connected to C262 Main Board, the Control Panel displays status The Printer Control is make up of the MCU PWB and numerous information send from the MCU PWB and C262 Main Board.
  • Page 96 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Face Up Exit Sensor Size Sensor 1 Monitors paper travel out of the Offset Unit. Monitors the size of the paper that is loaded in Feeder 1. The Actuator Assembly located at the rear of the Paper Tray has series Full Stack Sensor of cams that face the Size Sensor PWB.
  • Page 97 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Registration Sensor Level 1 Sensor Monitors paper travel out of the paper tray. Monitors whether or not Tray 1 is installed. Installing the Tray pushes the Link Stopper out, which in turn lowers the Feed Roll and...
  • Page 98 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles MSI No Paper Sensor Take Away Roll Sensor Monitors the paper level in the MSI. Monitors the paper travel at the Take Away Roll. MSI Feed Clutch Interlock Switches 1 and 2 Transmits Main Motor drive to the MSI Feed Rolls.

  • Page 99: Function Of The Mcu During Printer Control

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.7.1.3 Function of the MCU during printer control Processing input information Logic on the MCU compares the input information with the timing Input from sensors and reference values that are stored in ROM and NVRAM on the Sensors tell the MCU what is going on within the printer and what is PWB.
  • Page 100 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Output to motors, solenoids, and other components. After comparing input values with timing and reference values, the MCU makes a decision on the current status of the printer, and responds appropriately. The MCU may switch on or off motors, solenoids, or other components.

  • Page 101: Controller

    EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles 2.7.2 Controller 2.7.2.2 Specification on the Controller The table below shows specifications on the controller. The video data from the host computer is input to the controller circuit through either interface circuit or network board. C262 Main Board, Table 2-1.
  • Page 102 EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles Block diagram of C262 Main Board is shown below. E05B51 Cooling Fan Pattern only Pattern o ch201 Figure 2-47. Block Diagram of C262 Main Board Rev.B...
  • Page 103      TROUBLESHOOTING...

  • Page 104: Troubleshooting

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.1 Troubleshooting Table 3-1. Service Flowchart Block Procedure • Identify the problem. 3.1.1 Service Flowchart 1. Vertify that the reported problem does exit. 2. Check for any error codes or messages. To use the Service Flowchart, start at Block 1 to identify the problem.

  • Page 105: Fip Flowchart

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.1.2 FIP Flowchart Table 3-2. Service Flowchart(Cont.) If you used the Service Flowchart, it should have directed you to this section. Follow the FIP Flowchart, located at the end of this section, to Block Procedure analyze your printer problem.

  • Page 106: How To Follow A Fip

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.1.2.2 How to follow a FIP 3. Unless indicated otherwise, the instruction "switch ON main power" means for you to switch ON printer power and let the printer 1. Each numbered step in a FIP instructs you to perform a certain proceed through power-on diagnostics and warm-up until it is on- action or procedure.
  • Page 107 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 9. All voltage values given in the FIPs are approximate values. Actual measured voltages may vary more than 25% from the values stated in the FIPs. The main purpose of most voltage readings taken in the...

  • Page 108: Printer Message

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.2 Printer Message Table 3-4. Printer Message Message Classification Finisher #533:Finisher Stacker Tray3 Lower Limit The following lists the printer messages produced by this printer. #541:Finisher Lower Safety Table 3-3. Printer Message #542:Finisher Stacker Lower Safety...
  • Page 109 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-5. Printer Message Message Classification Table 3-6. Printer Message Finisher 2 Full Error Message Classification Finisher 3 Full Error Duplex Mem Overflow Error Insert Imaging Crtg * Error Invalid ROM B Error Image Crtg ID Error...

  • Page 110: Printer Message

    This error appears when there is no recognizable character lines parts and does not mean the number of the jammed paper. of “EPSON” at the Machine Controller side at turning the power Since the engine of this printer does not detect the paper size...
  • Page 111 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Multibin 1 10 Full (Error) Set ENV Tray (Error) Explanation Explanation This error appears when the appointed Multi-bin becomes full. ENV is removed after turning the power on. Since the Cover is opened when the paper jam error occurs, the ENV might be left Remedy uninstalled.
  • Page 112 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Turn Paper LC1 3 (Error) Remedy Turn off the power and remove the corresponding optional Explanation device. In case of the options which are supported for this This error appears when A4, LT or B5 size paper is set printer, perform the version up of the firmware.

  • Page 113: Service Req. Error

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.2.2 Service Req. Error 3.2.2.2 Controller Error The table below shows service req. errors related to the controller. 3.2.2.1 Engine Error Table 3-8. Controller Errors Following table lists service req. errors related to engine. Error Code...

  • Page 114: Operation When Service Req. Error Occurs

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.2.3 Operation when Service Req. Error Occurs Table 3-9. Controller Error Error Code When service req. errors happen, following functions are activated by ffff Explanation pressing a particular switch. 1010 Verify Error 1020 RAM Error (Slot 0) Reset CPU when service req.

  • Page 115: Printer Performance Problems(Not Indicated By Error Codes)

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.3 Printer Performance Problems(not 14. Are consumables, such as the Print Cartridge (EP Cartridge), replaced at recommended intervals? indicated by Error Codes) 3.3.1 Inoperative Printer Before entering the error analysis, check following points. Even when the main switch is turned on, LED on the Control Panel is 1.
  • Page 116 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-11. Inoperative Printer Table 3-12. Inoperative Printer Step Actions and Questions Step Actions and Questions AC POWER CHECK Go to step 3 Troublesho AC POWER IN CHECK Go to step 7 Replace the ot the AC Noise Filter Check the voltage at the AC wall outlet.

  • Page 117: Erratic Operation

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.3.2 Erratic Operation Table 3-14. Erratic Operation The printer has a variety of intermittent problems,but generally does not Step Actions and Questions complete a print cycle. The problems are generally not identified by displayed Error Codes.

  • Page 118: Inoperative Control Panel

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.3.3 Inoperative Control Panel Table 3-15. Erratic Operation The Control Panel LEDs, LCD, and /or Keypad do not function or do not Step Actions and Questions function correctly. HOST/PRINTER INTERFACE Go to step 8 Problem Table 3-16.

  • Page 119: Inoperative Main Drive Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.3.4 Inoperative Main Drive Assembly Table 3-17. Inoperative Control Panel The Main Drive Assembly does not function. Step Actions and Questions Table 3-18. Inoperative Main Drive Assembly LVPS +5VDC CHECK Replace Replace the Control the LVPS...
  • Page 120 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-19. Inoperative Main Drive Assembly Table 3-20. Inoperative Main Drive Assembly Step Actions and Questions Step Actions and Questions FUSER ASSEMBLY BINDING Replace the Go to step 5 REGISTRATION CLUTCH BIND- Replace the Go to step 8...

  • Page 121: Inoperative Paper Feed Drive

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.3.5 Inoperative Paper Feed Drive Table 3-22. inoperative Paper Feed Drive Paper feed drive does not work. The problem is not identified by a Step Actions and Questions displayed Error Code. MSI FEED CLUTCH TEST...

  • Page 122: J1-2 Is Not Displayed When The Ep Cartridge Is Out Of Toner

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.3.6 J1-2 is not displayed when the EP Cartridge is 3.3.7 Inoperative Interlock Switch out of toner The Control Panel LCD either does not display an interlock open Error The Control Panel LCD does not display the code J1-2 when the EP Code whenever a specific door or cover is open, or it does not display Cartridge is out of toner.

  • Page 123: Inoperative Offset

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.3.8 Inoperative Offset Table 3-26. Inoperative Offset The Offset function does not work or does not work correctly. Step Actions and Questions Table 3-25. Inoperative Offset OFFSET TEST Go to step 4 Replace the Offset Unit Assembly.

  • Page 124: Image Quality Fips

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4 Image Quality FIPs 14. Have consumables, such as the EP Cartridge, been replaced at the recommended interval? The FIP Flowchart or a Primary FIP should have directed you to this section. Before entering the Image Quality FIPs: 1.

  • Page 125: Light(Undertoned) Prints

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.1 Light(Undertoned) Prints Table 3-28. Light Prints Problem Step Actions and Questions The overall image density is too light. The image may also be unfused due to IMAGE DEVELOPMENT INSPEC- Go to step 4 Replace the insufficient image density.
  • Page 126 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-29. Light Prints Step Actions and Questions FUSER INSPECTION Replace the Go to Suspect Fuser Components 1. Generate another Grid Test Print Assembly. and switch OFF printer power when the print is halfway through the Fuser.

  • Page 127: Blank White

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.2 Blank White Table 3-31. Blank White Problem Step Actions and Questions The entire print is blank. IMAGE DEVELOPMENT INSPEC- Go to step 4 Replace the SUSPECT COMPONENTS TION HVPS The following components are Assembly.

  • Page 128: Black Prints

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.3 Black Prints Problem Table 3-33. Black Prints The entire print is black. Step Actions and Questions SUSPECT COMPONENTS The following components are EP CARTRIDGE REPLACEMENT Problem Go to step 4 associated with this specific problem.
  • Page 129 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-34. Black Prints Step Actions and Questions MCU PWB REPLACEMENT Problem Go to step 7 solved 1. Replace the MCU PWB. 2. Generate a Grid Test Print. Is the printed Test Pattern normal? ROS REPLACEMENT...

  • Page 130: Vertical Band Deletions

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.4 Vertical Band Deletions Table 3-36. Vertical Band Deletions Problem Step Actions and Questions There are areas of the image that are extremely light or missing entirely. These EP CARTRIDGE REPLACEMENT Problem Go to step 4...

  • Page 131: Horizontal Band Deletions

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.5 Horizontal Band Deletions Table 3-38. Horizontal Band Deletions Problem Step Actions and Questions There are areas of the image that are extremely light or missing entirely. These IMAGE TRANSFER INSPECTION Go to step 4...

  • Page 132: Vertical Streaks

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.6 Vertical Streaks Table 3-40. Vertical Streaks Problem Step Actions and Questions There are black lines running vertically along the page. EP CARTRIDGE REPLACEMENT Problem Go to step 4 solved SUSPECT COMPONENTS Install a new EP Cartridge (CRU).

  • Page 133: Horizontal Streaks

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.7 Horizontal Streaks Table 3-42. Horizontal Streaks Step Actions and Questions Problem IMAGE DEVELOPMENT INSPEC- Go to step 3 Replace the There are black lines running TION horizontally across the page. Assembly. 1. Remove the Rear Cover.
  • Page 134 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-43. Horizontal Streaks Step Actions and Questions C262 MAIN CONTROLLER Problem Go to step 6 REPLACEMENT solved Replace the C262 Main Board. Are the horizontal streaks gone? HVPS REPLACEMENT Problem Go to solved Suspect Replace the HVPS Assembly.

  • Page 135: Spot Deletions

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.8 Spot Deletions Table 3-45. Spot Deletions Problem Step Actions and Questions There are areas of the image that are extremely light or missing IMAGE TRANSFER INSPECTION Replace the Go to step 4 entirely. These missing areas form 1.

  • Page 136: Spots

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.9 Spots Table 3-47. Spots Problem Step Actions and Questions There are spots of toner randomly scattered across the page. INTERIOR INSPECTION AND Problem Go to step 3 CLEANING solved SUSPECT COMPONENTS 1. With the EP Cartridge removed,...
  • Page 137 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-48. Spots Step Actions and Questions FUSER INSPECTION Replace the Clean or Fuser replace the 1. Generate another Blank Test Print Assembly. Offset/Exit and switch OFF printer power when Assembly. the print is halfway through the Fuser.

  • Page 138: Residual Image Or Ghosting

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.10 Residual Image or Ghosting Table 3-50. Residual Image or Ghosting Problem Step Actions and Questions There are faint, ghost images appearing randomly on the page. Generate a print run of 30 pages of Go to step 3...

  • Page 139: Background

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.11 Background Table 3-52. Background Problem Step Actions and Questions There is toner contamination on all or part of the page. The contamination IMAGE DEVELOPMENT INSPEC- Go to step 3 Replace the appears as a very light gray dusting.
  • Page 140 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-53. Background Step Actions and Questions FUSER INSPECTION Replace the Go to Suspect Fuser Components 1. Generate another Blank Test Print Assembly. and switch OFF printer power when the print is halfway through the Fuser.

  • Page 141: Skewed Image

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.12 Skewed Image Table 3-55. Skewed Image Problem Step Actions and Questions The printed image is not parallel with the sides of the page. FEED, NUDGER, AND RETARD Go to step 4 Problem ROLL REPLACEMENT...

  • Page 142: Damaged Prints

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.13 Damaged Prints Table 3-57. Damaged Image Problem Step Actions and Questions The printed page comes out of the printer either wrinkled, creased, or PAPER FEED INSPECTION Go to FIP Go to step 4 torn.

  • Page 143: Unfused Image Or Image Easily Rubbed Off

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.4.14 Unfused Image or Image Easily Rubbed Off 3.4.15 Image not Registered Correctly Problem Problem The printed image is not fully The printed image is not centered fused to the paper. The image on the page or is bleeding off of easily rubs off.

  • Page 144: Secondary Fips

    EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting 3.5 Secondary FIPs Table 3-59. Electrical Noise Troubleshooting Step Actions and Questions The FIP Flowchart or a Primary FIP should have directed you to this section. Before entering the Secondary FIPs: SUSPECT COMPONENTS The following components are 1.
  • Page 145 EPSON EPL-N4000/EPL-N4000+ Chapter 3 Troubleshooting Table 3-60. Electrical Noise Troubleshooting Table 3-61. Electrical Noise Troubleshooting Step Actions and Questions Step Actions and Questions OPTION ISOLATION Go to step 3 Go the HVPS REPLACEMENT Go to step 7 Problem If the printer has options installed, such Technical Replace the HVPS Assembly.

  • Page 146: Disassembly And Assembly

         DISASSEMBLY AND ASSEMBLY...

  • Page 147: Overview

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.1 Overview 4.1.2 Tools The table below shows the tools recommended for disassembling and This section contains the removal and replacement procedures for assembling. Use only tools that meet these specification. major parts and subsystems within the printer.
  • Page 148 EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 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: Procedures For Disassembling

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2 Procedures for Disassembling This section describes procedures for disassembling EPL-N4000/N4000+. Unless specified, assembling can be done by reversing the disassembly procedures. If you need to disassemble the unit which are not written on the manual, refer to the exploded diagrams...
  • Page 150 EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly Offset Motor Controller Board Unit Control Panel Offset /Exit Assembly Exit Gate Solenoid Low Voltage Power Supply Assembly Exit Gate Solenoid ROS Assembly Face Up Exit Sensor ch404 Figure 4-5. Flow Chart 4...
  • Page 151 EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly Left Upper Cover Main Drive Assembly Tray 1 Feed Clutch Assembly Tray 1 Take Away Roll Registaration Clutch Assembly Tray 1 Retard Asembly Toner Sensor MSI Support Tray 2 Feed Assembly Clutch Tray 1 Lift Up...

  • Page 152: Fuser Full Cover

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.1 Fuser Full Cover 4.2.1.2 Installation 1. Open the Duplex Unit if one is installed. (See “Top Cover Assembly” on page -253 ) 2. Open the Left Upper Cover. 4.2.1.1 Removal 3. Slide the tabs that are located at both ends of the Cover into the 1.

  • Page 153: Top Cover Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.2 Top Cover Assembly 5. Carefully lift the Top Cover a few inches off of the printer frame. 6. Disconnect the J417 from the Control Panel, and lift the Top Cover (See “Top Cover Assembly” on page -253) Assembly off of the printer frame.

  • Page 154: Rear Cover Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.3 Rear Cover Assembly (See “Rear, Left and Right Cover” on page -255) 4.2.3.1 Removal 1. Remove the AC power cord from the rear of the printer. 2. Remove the two screws securing the Rear Cover Assembly to the printer frame.

  • Page 155: Right Cover

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.4 Right Cover 4.2.4.2 Installation 1. Raise the right end of the Top Cover. (See “Rear, Left and Right Cover” on page -255) 2. Press the Right Cover against the printer frame and slide the Cover 4.2.4.1 Removal...

  • Page 156: Control Panel

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.5 Control Panel 4.2.5.2 Installation 1. Position the Control Panel over the opening in the Top Cover (See “Top Cover Assembly” on page -253) Assembly, and press the Panel into the opening. The panel snaps into place.

  • Page 157: Rear Cover 1Tm

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.6 Rear Cover 1TM 4.2.6.2 Installation 1. Reinstall the Rear Cover 1TM by first hooking the bottom edge of (See “Rear, Left and Right Cover” on page -255) the Cover onto the frame, then pressing the top of the Cover against the frame.

  • Page 158: Tray 1 Lift Up Motor

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.7 Tray 1 Lift Up Motor 4.2.7.2 Installation 1. Reinstall the Lift Up Motor onto the printer frame. Be careful not to (See “Tray Interface -Tray 1” on page -258) trap any wires between the Motor and the frame.

  • Page 159: Tray 1 Feed Clutch

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.8 Tray 1 Feed Clutch 4.2.8.2 Installation 1. Position the Feed Clutch over the end of the Feed Shaft. (See “Tray Interface -Tray 1” on page -258) 2. Reposition the Feed Clutch so it fits the key notch on the shaft and 4.2.8.1 Removal...

  • Page 160: Feed, Nudger, And Retard Rolls

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.9 Feed, Nudger, and Retard 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 (See “Paper Pick Up - Tray 1” on page -259 and “Retard and Take hooking the tab at the front of the Chute into the opening on the Away- Tray 2”...

  • Page 161: Tray1 Take Away Roll Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.10 Tray1 Take Away Roll Assembly 12. Remove Tray 1 Lift Motor. (“Tray 1 Lift Up Motor” on page -144) (See “Retard and Take Away- Tray 2” on page -263) 4.2.10.1 Removal 1. Remove the Duplex Unit, if one is installed.

  • Page 162: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.10.2 Installation 1. Reinstall Tray 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.
  • Page 163 EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 11. Reinstall the Option Connector Bracket to the frame, and use one screw to secure the Bracket. 12. Reconnect P403, P404, P406, and P408 to the MCU PWB. 13. Reinstall the docking clip to Tray 2, and use one screw to secure the clip.

  • Page 164: Tray 1 Feeder Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.11 Tray 1 Feeder Assembly (See “Paper Pick Up - Tray 1” on page -259) Take care not to break or dislodge the No Paper Actuator when removing or replacing the Tray1 Feeder Assembly.

  • Page 165: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.11.2 Installation 1. Hold down the Stopper Link while you insert the end of the Feed Shaft into the opening in the rear of the printer frame. 2. Slide the Bearing into the Bearing cutout (refer to the figure).

  • Page 166: Support Assembly Spring

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.12 Support Assembly Spring 4.2.12.2 Installation 1. Reinstall the Support Assembly Spring. (Refer to the figure for (See “Retard and Take Away-Tray 1” on page -260) correct positioning). 4.2.12.1 Removal 2. Make sure the front and rear arms of the Spring are positioned as shown in the figure.

  • Page 167: Tray1 Retard Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.13 Tray1 Retard Assembly 11. Remove the Center Bearing on the Take Away Roll Shaft, and slide the Roll out of the Retard Support. (See “Retard and Take Away-Tray 1” on page -260) 4.2.13.1 Removal...
  • Page 168 EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 7. Align the screw hole in the Gear Stopper with the screw hole in the frame, and use one screw to secure the Stopper. 8. Reinstall the Tray 1 Support Assembly Spring. (“Support Assembly Spring”...

  • Page 169: Tray 1&2 Front Chute Assemblies

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.14 Tray 1&2 Front Chute Assemblies 4.2.14.2 Installation 1. Remove either Paper Tray 1 or Paper Tray 2. (See “Tray Interface -Tray 1” on page -258 and “Tray Interface-Tray 2” on page -261) 2.

  • Page 170: Tray 1 & Tray 2 Level Sensors

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.15 Tray 1 & Tray 2 Level Sensors 8. Reinstall the Paper Tray. (See “Tray Interface -Tray 1” on page -258 and “Tray Interface-Tray 2” on page -261) Use this procedure for removing and replacing the Paper Level Sensors for Trays 1 and 2.

  • Page 171: Tray1 & Tray 2 No Paper Sensors

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.16 Tray1 & Tray 2 No Paper Sensors 8. Reconnect the P/J to the Sensor. 9. Reinstall the Paper Tray. (See “Tray Interface -Tray 1” on page -258 and “Tray Interface-Tray 2” on page -261) Use this procedure for removing and reassembling the No Paper Sensors for Trays 1 and 2.

  • Page 172: Tray 1 & Tray 2 Paper Size Sensors

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.17 Tray 1 & Tray 2 Paper Size Sensors (See “Tray Interface -Tray 1” on page -258 and “Tray Interface-Tray 2” on page -261) 4.2.17.1 Removal 1. Remove either Paper Tray 1 or Paper Tray 2 from the printer.

  • Page 173: Tray 2 Feed Clutch

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.18 Tray 2 Feed Clutch (See “Paper Pick Up-Tray 2” on page -262) 4.2.18.1 Removal 1. Remove the Rear Cover 1TM. (See “Rear Cover 1TM” on page -143) 2. Disconnect J240 from the Feed Clutch.

  • Page 174: Tray 2 Feeder Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.19 Tray 2 Feeder Assembly (See “Paper Pick Up - Tray 1” on page -259) Take care not to break or dislodge the NO Paper Actuator when removing or replacing the Tray2 Feeder Assembly.

  • Page 175: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.19.2 Installation 1. Hold down the Stopper Link while you insert the end of the Feed Shaft into the opening in the rear of the printer frame. 2. Slide the Bearing into the Bearing cutout (refer to the figure on the previous page).

  • Page 176: Tray2 Take Away Roll Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.20 Tray2 Take Away Roll Assembly 4.2.20.2 Installation 1. Reinstall the Take Away Roll shaft onto the Retard Support. (See “Retard and Take Away- Tray 2” on page -263) 2. Reinstall the Center Bearing onto the Take Away Roll shaft, and 4.2.20.1 Removal...

  • Page 177: Tray 2 Retard Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.21 Tray 2 Retard Assembly 4. Reinstall Gear 22 to the rear of the shaft, and use an E ring to secure the Gear. (See “Retard and Take Away- Tray 2” on page -263) 5.

  • Page 178: Msi Feeder Assembly (Manual Feeder)

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.22 MSI Feeder Assembly (Manual Feeder) 4.2.23 MSI Tray Assembly (See “MSI Feeder Assembly” on page -266) (See “MSI Tray Assembly” on page -164) 4.2.22.1 Removal 4.2.23.1 Removal 1. Face the left side of the printer.

  • Page 179: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.23.2 Installation 3. Disconnect the P/J that runs from the Tray Assembly to the Feeder Assembly. 1. Slide pivot hole on the left side of the Tray onto the metal shaft on the Rear Support.

  • Page 180: Msi Support Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.24 MSI Support Assembly 6. Reinstall the Rear Cover Assembly. “Rear Cover Assembly” on page -140) (See “Multi Sheet Inserter and MSI/Duplex Support” on page -265) 7. Reinstall the Rear Support Cover and use one screw to secure it to the Support Assembly.

  • Page 181: Msi Size Sensor Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.25 MSI Size Sensor Assembly (See “MSI Tray Assembly” on page -268) 4.2.25.1 Removal 1. Remove the MSI Feeder Assembly. (“MSI Feeder Assembly (Manual Feeder)” on page -164) 2. Place the MSI Feeder upside down, with the Tray facing you.

  • Page 182: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.25.2 Installation 10. Press at the five latch locations to make sure the latches have locked the Lower Cover in place. 1. Reinstall the MSI Side Guide, making sure the two latch tabs at the bottom of the Guide fit through the cutout in the Upper Cover.

  • Page 183: Msi Feed Clutch

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.26 MSI Feed Clutch 4. Disconnect the J208 running to the MSI Feed Clutch. 5. Remove the screw securing the Rear Hook Bracket to the Feeder (See “Upper Feeder Assembly” on page -267) Assembly and remove the Bracket (Figure below).
  • Page 184 EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 6. Remove the E-ring securing the MSI Link Gear to the idler shaft, and slide the Gear, along with the MSI Drive Gear Assembly off of the shaft (Figure below). Figure 4-40. Removal of MSI Feed Clutch Figure 4-39.

  • Page 185: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.26.2 Installation 1. Position the MSI Feed Clutch with the gear facing out, and slide the Clutch onto the Feed Shaft. 2. Thread the Clutch wire harness through the cutout in the Support frame.

  • Page 186: Msi Feed Roll

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.27 MSI Feed Roll 4.2.27.2 Installation 1. Position the Feed Roll so the metal end of the hole is facing the No- (See “Upper Feeder Assembly” on page -267) Paper Sensor. 4.2.27.1 Removal One-way clutch is built in the Feed Roll.

  • Page 187: Msi Nudger Roll

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.28 MSI Nudger Roll 4.2.28.2 Installation 1. Slide the Nudger Roll, forked end first, onto the Nudger Shaft, (See “Upper Feeder Assembly” on page -267) making sure the forked end engages the pin at the end of the shaft.

  • Page 188: Msi Nudger Roll Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.29 MSI Nudger Roll Assembly 4.2.29.2 Installation 1. Reinstall the Front and Rear Feed Bearings onto the Nudger Roll (See “MSI Tray Assembly” on page -268) Assembly (see the figure for correct placement).

  • Page 189: Msi Pad

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.30 MSI Pad 7. Reinstall the MSI Feed Roll. (“MSI Feed Roll” on page -172) (See “MSI Feeder Assembly (Manual Feeder)” on page -164) 4.2.30.1 Removal 1. Remove the MSI Feed Roll. (“MSI Feed Roll” on page -172) 2.

  • Page 190: Msi Friction Clutch

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.31 MSI Friction Clutch (See “Upper Feeder Assembly” on page -267) 4.2.31.1 Removal 1. Remove the MSI Tray Assembly. (“MSI Tray Assembly” on page -164) 2. Remove the E ring securing the Clutch to the shaft.

  • Page 191: Msi No-Paper Sensor Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.32 MSI No-Paper Sensor Assembly 8. Manually actuate the No Paper Actuator to make sure it moves freely between the arms of the Sensor. (See “Upper Feeder Assembly” on page -267) 9. Reinstall the MSI Feeder Assembly. (“MSI Feeder Assembly (Manual Feeder)”...

  • Page 192: L/H Low Cover Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.33 L/H Low Cover Assembly 4. Remove the two Holding Springs, and lift the Pinch Roll out of the Bracket. (See “Tray 1 Frame and Left Cover” on page -269) 5. Remove the two Center Bearings, the two Shaft Springs, and the two End Brackets from the Shaft.

  • Page 193: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.33.2 Installation 1. Reinstall the two End Bearings onto the Shaft. 2. Reinstall the two Shaft Springs over the End Bearings. 3. Compress the Shaft Springs and reinstall the Shaft into the Bracket.

  • Page 194: Left Lower Cover Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.34 Left Lower Cover Assembly 4.2.34.2 Installation 1. Reinstall the Front Hinge onto the pivot post on right side of the Left (See “Tray 2 Frame and Left Cover” on page -270) Lower Cover.

  • Page 195: Left Lower Cover Pinch Roll Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.35 Left Lower Cover Pinch Roll Assembly 6. Reinstall the Bracket onto the Left Lower Cover Assembly, and use three screws to secure it to the Assembly. (See “Tray 2 Frame and Left Cover” on page -270) 7.

  • Page 196: Left Lower Cover Interlock Switch

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.36 Left Lower Cover Interlock Switch 4.2.36.2 Installation 1. Reconnect J144. (“Tray 2 Frame and Left Cover” on page -270) 2. Squeeze the sides of the Switch while inserting the locating tab on 4.2.36.1 Removal...

  • Page 197: Tray 2 Take Away Sensor

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.37 Tray 2 Take Away Sensor 4.2.37.2 Installation 1. Reconnect J143 to the Sensor. (“Tray 2 Frame and Left Cover” on page -270) 2. Insert the Sensor into the cutout in the frame. (See the figure for 4.2.37.1 Removal...

  • Page 198: Registration Clutch

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.38 Registration Clutch 4.2.38.2 Installation 1. Slide the Registration Clutch onto the shaft. The shaft latch snaps (See “Registration” on page -271) the Clutch into place on the shaft. 4.2.38.1 Removal 2. Use an E clip to secure the Registration Clutch to the Registration Shaft.

  • Page 199: Left Upper Cover Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.39 Left Upper Cover Assembly (See “Left Upper Cover Assembly” on page -272) 4.2.39.1 Removal 1. Remove the Rear Cover. (“Rear Cover Assembly” on page -140) 2. Open the Duplex Unit. 3. Open the Left Upper Cover.

  • Page 200: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.39.2 Installation 1. Open the Duplex Unit. When the Left Upper Cover is open, the BTR is exposed. Do not touch the BRT. Grease and dirt on, or physical damage to the BTR will effect print quality.

  • Page 201: Left Chute Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.40 Left Chute Assembly 4. Lift the clear mylar strip out of the way as you lower the Chute onto the Upper Cover. (See “Left Upper Cover Assembly” on page -272) 5. As you lower the Chute make sure the top of the two Comp Springs fit into the tabs on the underside of the Chute.

  • Page 202: Registration Chute Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.41 Registration Chute Assembly 3. Align the four screw holes (two at each end) in the Registration Chute with the four screw holes in the printer frame. (See “Registration” on page -271) 4. Use two screws to secure the Chute to the front of the frame, and use two screws to secure the Chute to the rear of the frame.

  • Page 203: Registration Roll Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.42 Registration Roll Assembly (See “Registration” on page -271) 4.2.42.1 Removal 1. Remove the Registration Chute Assembly. (“Registration Chute Assembly” on page -188) 2. Remove the E ring fro the rear of the Registration Roll Shaft.

  • Page 204: Registration Sensor

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.43 Registration Sensor 4.2.43.2 Installation 1. Reconnect J103 to the Registration Sensor. (See “Registration” on page -271) 2. Insert the Sensor into the cutout in the Registration Chute 4.2.43.1 Installation Assembly. 1. Open the Left Upper Cover.

  • Page 205: Ros Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.44 ROS Assembly 3. Make sure you have not trapped any wire harnesses under the ROS Assembly. (See “ROS Assembly” on page -274) 4. Use four screws to secure the ROS Assembly to the printer frame.

  • Page 206: Ep Cartridge (Toner Cartridge)

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.45 EP Cartridge (Toner Cartridge) (See “Xerography and Development Transport Chute Assembly” on page -274) 4.2.45.1 Removal 1. Open the Duplex Unit. 2. Open the Left Upper Cover. Do not attempt to remove the EP Cartridge without first opening the LEFT Upper Cover.
  • Page 207 EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 5. Release the top handle and allow it to fold out of the way, then slide the EP Cartridge the rest of the way into the printer. 6. Push firmly on the end of EP Cartridge to make sure it is correctly seated in the printer.

  • Page 208: Btr Assembly (Transfer Roller Unit)

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.46 BTR Assembly (Transfer roller unit) 4. Position the BTR so the BTR gear on one end of the Roll is to the rear. (See “Xerography and Development Transport Chute Assembly” on 5. Press the ends of the BTR into the BTR Sleeves. The BTR snaps page -274) into place.

  • Page 209: Toner Sensor

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.47 Toner Sensor 4.2.47.2 Installation 1. Reinstall the Toner Sensor and attached springs. (refer to the figure (See “Xerography and Development Transport Chute Assembly” on for correct positioning). page -274) 2. Route the attached wire harness along the channel and through the 4.2.47.1 Removal...

  • Page 210: Cru Interlock Switch

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.48 CRU Interlock Switch 4.2.48.2 Installation 1. Line up the two positioning holes on the CRU Interlock Switch with (See “Xerography and Development Transport Chute Assembly” on the two position tabs on the printer frame.

  • Page 211: Fuser Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.49 Fuser Assembly 5. Firmly push the Fuser Assembly to make sure J12 is mated correctly with P12. (See “Fuser Assembly” on page -276) 6. Tighten the two thumb screws to secure the Fuser Assembly to the printer frame.

  • Page 212: Fuser Drive Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.50 Fuser Drive Assembly (See “Fuser Drive Assembly” on page -282) 4.2.50.1 Removal 1. Remove the Fuser Assembly. (“Fuser Assembly” on page -197) 2. Remove the EP Cartridge. (“EP Cartridge (Toner Cartridge)” on page -192) 3.

  • Page 213: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.50.2 Installation 1. Reinstall the Fuser Drive Assembly onto the printer frame. (Refer to the figure for correct positioning) 2. Align the Assembly so the screw holes and locating holes in the Assembly line up with the screw holes and locating tabs on the frame.

  • Page 214: Offset/Exit Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.51 Offset/Exit Assembly 6. Reinstall the Rear Cover Assembly. (“Rear Cover Assembly” on page -140) (See “Exit Lower Chute” on page -277 and “Exit Upper Chute 7. Reinstall the Fuser Full Cover.(“Fuser Full Cover” on page -138) Assembly”...

  • Page 215: Exit Drive Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.52 Exit Drive Assembly 4.2.52.2 Installation 1. Align the Exit Drive Assembly with the Offset Unit Assembly so the (See “Exit Drive Assembly” on page -280) white drive gear and shaft fit through the corresponding opening in the Exit Drive Assembly.

  • Page 216: Exit Gate Solenoid

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.53 Exit Gate Solenoid 4.2.53.2 Installation 1. Position the Exit Gate Solenoid so the wire harness faces up. (See “Exit Lower Chute” on page -277) 2. Reinstall the Solenoid onto the Offset Assembly, making sure the 4.2.53.1 Removal...

  • Page 217: Offset Motor

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.54 Offset Motor 4.2.54.2 Installation 1. Insert the Motor arm into the Offset Roll Rack. (See “Exit Lower Chute” on page -277) 2. Reconnect J209 to the Offset Motor. 4.2.54.1 Removal 3. Reinstall the Offset Motor onto the Offset Assembly.

  • Page 218: Face Up Exit Sensor

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.55 Face Up Exit Sensor (See “Exit Lower Chute” on page -277) 4.2.55.1 Removal 1. Remove the Fuser Full Cover. (“Fuser Full Cover” on page -138) 2. Disconnect J109. 3. Remove the two screws securing the Face Up Exit Sensor to the Exit Sensor Bracket and remove the Sensor.

  • Page 219: Offset Roller Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.56 Offset Roller Assembly 5. Reinstall the Face Up Exit Sensor. (“Face Up Exit Sensor” on page -204) (See “Offset Roller” on page -278) 6. Reinstall the Offset Motor. (“Offset Roller Assembly” on page -205) 4.2.56.1 Removal...

  • Page 220: Lower Chute Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.57 Lower Chute Assembly 4. Reinstall the Offset Roller Assembly.(“Offset Roller Assembly” on page -205) (See “Exit Lower Chute” on page -277) 4.2.57.1 Removal 1. Remove the Offset Roller Assembly. (“Offset Roller Assembly” on page -205) 2.

  • Page 221: Upper Chute Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.58 Upper Chute Assembly 3. Use three screws to secure the Lower Chute to the frame. 4. Open the Upper Chute Assembly and tighten the rear screw (See “Exit Upper Chute Assembly” on page -279) securing the Face Up Lower Chute to the frame.

  • Page 222: Exit Roll Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.59 Exit Roll Assembly 7. Reinstall the Exit Drive Assembly. (“Exit Drive Assembly” on page -201) (See “Offset Roller” on page -278) 4.2.59.1 Removal 1. Remove the Exit Drive Assembly. (“Exit Drive Assembly” on page -201) 2.

  • Page 223: Full Stack Sensor

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.60 Full Stack Sensor 4.2.60.2 Installation 1. Reinstall the Full Stack Sensor by pressing the Sensor latches into (See “Exit Upper Chute Assembly” on page -279) the cutouts in the Offset Assembly. 4.2.60.1 Removal Make sure you install the Sensor with the wire 1.

  • Page 224: Inverter Clutches

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.61 Inverter Clutches 4. Reinstall the CW Gear onto the CW Clutch shaft. 5. Reinstall the CCW Gear on to the CCW Clutch shaft. (See Appendix “Exit Drive Assembly” on page -280) 6. Route the wire harness under the harness clips and reconnect P/J 4.2.61.1 Removal...

  • Page 225: Main Drive Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.62 Main Drive Assembly (See “Main Drive Assembly” on page -281) 4.2.62.1 Removal 1. Remove the EP Cartridge. (“EP Cartridge (Toner Cartridge)” on page -192) Do not attempt to remove the Main Drive Assembly without first removing the EP Cartridge.
  • Page 226 EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 9. Disconnect P/J 462 from the MCU PWB. 6. Disconnect J205 from the Main Motor PWB. 10. Disconnect P/J 202, J209, J600, and J601. 7. Release the wire harness that is located just above the Main Motor 11.

  • Page 227: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.62.2 Installation 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 1. Remove the EP Cartridge. (“EP Cartridge (Toner Cartridge)” on press the Support against the Main Drive Assembly.

  • Page 228: Main Power Switch

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.63 Main Power Switch 4.2.63.2 Installation 1. Slide the Main Switch into the opening in the top of the Main Switch (See “Power Inlet and LVPS” on page -283) Bracket. It snaps into place.

  • Page 229: Low Voltage Power Supply(Lvps) Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.64 Low Voltage Power Supply(LVPS) Assembly 4. Reinstall the wire harnesses into the harness clips at the rear of the LVPS. (See “Power Inlet and LVPS” on page -283) 5. Slide the LVPS into place in the printer frame. Make sure you do not trap the Main Switch wires between the LVPS and the printer frame.

  • Page 230: Ac Driver Pwb

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.65 AC Driver PWB 5. Reinstall the ESS Assembly and use four screws to secure it to the LVPS. (See “HVPS and MCU PWB” on page -284) 6. Reinstall the Rear Cover Assembly. (“Rear Cover Assembly” on page -140) 4.2.65.1 Removal...

  • Page 231: High Voltage Power Supply(Hvps) Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.66 High Voltage Power Supply(HVPS) Assembly 4. Use two screws to secure the HVPS Assembly into place on the printer frame. (See “HVPS and MCU PWB” on page -284) 5. Reconnect J500, DTS, FB, CB, and BTR to the HVPS PWB.

  • Page 232: Noise Filter Pwb

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.67 Noise Filter PWB (See “Power Inlet and LVPS” on page -283) 4.2.67.1 Removal 1. Remove the Rear Cover. (“Rear Cover Assembly” on page -140) 2. Disconnect J19, F55, and F56 from the Noise Filter PWB.

  • Page 233: Left Cover Interlock Switch Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.68 Left Cover Interlock Switch Assembly 6. Position the Switch Bracket against the printer frame, slightly down from the screw hole in the printer frame. (See “HVPS and MCU PWB” on page -284) 7.

  • Page 234: Mcu(Machine Control Unit) Pwb

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.69 MCU(Machine Control Unit) PWB (See “HVPS and MCU PWB” on page -284) 4.2.69.1 Removal 1. Remove the Rear Cover Assembly. (“Rear Cover Assembly” on page -140) 2. Disconnect the seventeen P/Js that are connected to the MCU PWB.

  • Page 235: Installation

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.69.2 Installation 1. Place the Bracket on a flat, non-conductive surface. 2. Hold on to the edges of the PWB or one of the plastic connectors mounted on the board, and reinstall the MCU into the Bracket.

  • Page 236: Controller Board

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.70 Controller Board 4. Remove harness from the connector parts(CN14,CN19, CN20, and CN21) on the controller board. (See “Controller Assembly” on page -285) 5. Removes twelve screws that secure the controller board. (A wire of CN14 is secured by one fixing screw of ESS Cover) 4.2.70.1 Removal...

  • Page 237: Ess Box

    EPSON EPL-N4000/EPL-N4000+ Chapter 4 Disassembly and Assembly 4.2.71 ESS Box 4.2.71.1 Removal 1. Remove the ESS Cover. 2. Disconnect CN14, CN19, CN20 and CN21 form the controller board and remove the wire harness from the wire clamps. Then, release the wire harness from the wire clamps and pull the harness free of the ESS Box.

  • Page 238: Adjustment

         ADJUSTMENT...
  • Page 239 EPSON EPL-N4000/EPL-N4000+ Chapter 5 Adjustment No adjustment is necessary for this printer. Rev.B...

  • Page 240: Maintenance

         MAINTENANCE...

  • Page 241: Maintenance

    EPSON EPL-N4000/EPL-N4000+ Chapter 6 Maintenance 6.1 Maintenance This section explains about maintenance of the printer. Lubrication and adhesion points are not really regulated for this printer. However, there are some exchange units by the users are regulated. 6.1.1 Exchange Units and Parts by User Any units or parts that user can change are listed below.

  • Page 242: Appendix

         APPENDIX...

  • Page 243: Connector Pin Diagram

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.1 Connector Pin Diagram 7.1.1 Pin Alighnment Figure on next page shows major component of wiring diagram in this printer. Rev.B...
  • Page 244 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-1. Major Component Connecting Diagram Rev.B...

  • Page 245: How To Use P/J Location Table And Map

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.1.2 How to use P/J location Table and Map Table 7-2. P/J Location Table Use the table and maps in this section to locate specific P/J connectors Location Other end within the printer. To find the location of a P/J:...
  • Page 246 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-3. P/J Location Table Table 7-4. P/J Location Table Location Other end connected Location Other end connected Connected to Connected to page -234 Scanner Motor Assembly P/J456 MCU PWB page -236 MCU PWB P/J480/P/J481 HCF Cabinet...
  • Page 247 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-5. P/J Location Table Table 7-6. P/J Location Table Location Other end connected Location Other end connected Connected to Connected to page -236 MCU PWB P/J500 HVPS page -236 Fuser STS P/J462 MCU PWB...
  • Page 248 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-7. P/J Location Table Location Other end connected Connected to F51~5 page -238 Main Power Switch P/J19 Noise Filter PWB P/J20 AC Drive PWB P/J1 LVPS PWB page -238 Noise Filter PWB AC Power Cord Hot...
  • Page 249 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-3. P/J Location Map2 Figure 7-4. P/J Location Map3 Rev.B...
  • Page 250 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-6. P/J Location Map5 Figure 7-5. P/J Location Map4 Rev.B...
  • Page 251 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-8. P/J Location Map7 Figure 7-7. P/J Location Map6 Rev.B...
  • Page 252 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-9. P/J Location Map8 Rev.B...

  • Page 253: Signal Information

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.1.3 Signal Information 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.
  • Page 254 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-9. Signal Name Signal Name Description CNPN$BUZR Control Panel buzzer +CNPN$LED LED synch. High=Off. Low=On CNPN$PWR4 Key synch. High=Key pressed. Low=Key not pressed CNPN$PWR3 Source for Key and LED. High=On. Low=Off CNPN$PWR2 Source for Key and LED. High=On. Low=Off CNPN$PWR1 Source for Key and LED.
  • Page 255 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-10. Signal Name Signal Name Description /SBSY Status busy signal. Low=Transmitting signal. High=Not transmitting /STA Status from MCU to ESS /CMD Command from ESS to MCU /PCLK Clock signal which is sent from the printer to ESS, and command timing for sending the status.
  • Page 256 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-11. Signal Name Signal Name Description CRU#DET Monitors CRU presence. High=CRU installed. Low=CRU not installed DA$DATA Data used to set laser LD$ENB Enables laser - MCU to the LD Drive. High=No enabled. Low=Enabled APC$CNT...
  • Page 257 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-14. Toner Sensor Xerographic CRU MCU PWB Figure 7-15. HVPS M CU PWB Table 7-12. Signal Name Signal Name Description Table 7-13. Signal Name CRUM$PWR Switches CRUM power. CRU$CLK Clock signal for CRU Memory...
  • Page 258 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-16. Fuser Fan Main Motor Interlock SM1&SM2 Table 7-14. Signal Name Signal Name Description MMOT$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.
  • Page 259 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-15. Signal Name Signal Name Description SNR#SIZEM Analog signal from the MSI Size Sensor. Voltage levels 0VDC~5VDC SNR#SIZE Analog signal from the Envelope Size Sensor. Voltage levels 0VDC~5VDC SNR#NOPM Monitors level of paper in the MSI. High=No paper present.
  • Page 260 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-18. Size 1 Sensor Registration Sensor No-Paper1 Sensor Level 1 Sensor MCU 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.
  • Page 261 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-17. Signal Name Signal Name Description CL$FEED1 Controls Tray 1 paper feed. High=No feed. Low=Feed CL$RGATE Controls Registration Clutch. High=Clutch off. Low=Clutch on STS#FSR Fuser Heat Roll temperature. Analog signal. SNR#FEXIT Monitors paper leaving the Fuser. High=Paper present.
  • Page 262 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-18. Signal Name Signal Name Description OPT$TX+ Status of Finisher or Mailbox sent to MCU. High=Mark. Low=No mark OPT#RX+ Status of MCU sent to the Finisher or Mailbox. High=Mark. Low=No mark MBS#DET Monitors presence of Mailbox. High=Mailbox not installed.
  • Page 263 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-19. Signal Name Signal Name Description OPT$TX+ Status of Duplex Module sent to MCU. High=Mark. Low=No mark OPT#RX+ Status of MCU sent to the Duplex Module. High=Mark. Low=No mark DUP#DET Monitors presence of a Duplex Module. High=Duplex Module installed.
  • Page 264 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Table 7-20. Signal Name Signal Name Description SNR#SIZE2 Analog signal from the Tray 2 Size Sensor. Voltage levels 0VDC~5VDC SNR#NOP2 Monitors level 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.

  • Page 265: Board Component Layout

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.2 Board Component Layout 7.2.1 C262 Main Board Component Figure 7-23. C262 Main Component Rev.B...
  • Page 266 EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix Figure 7-24. C262 Main Component Layout (Soldered side) Rev.B...

  • Page 267: Parts List

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3 Parts List 7.3.1 Top Cover Assembly (J204) PL11.4.23 Table 7-21. Parts Name for Top Cover Assembly No. in the Figure Unit / Parts Name PL11.3.16 COVER ASSEMBLY (with 2,3) (J417) TOP COVER LABEL SWITCH...

  • Page 268: Front Cover

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.2 Front Cover Table 7-22. Parts Name for Front Cover No. in the Figure Unit / Parts Name COVER ASSEMBLY SPRING TORSION COVER F/R PLATE MAGNET DOCT BOTTOM STUDIO DOCKING SPRING EME FRONT BRACKET DOCKING LEFT...

  • Page 269: Rear, Left And Right Cover

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.3 Rear, Left and Right Cover Table 7-23. Parts Name for Rear, Left and Right Cover No. in the Figure Unit / Parts Name COVER INNER, LH COVER RH COVER ASSEMBLY, REAR OEM COVER REAR 1TM, OEM Figure 7-27.

  • Page 270: Tray Unit - Paper Stack

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.4 Tray Unit - Paper Stack Table 7-24. Parts Name for Tray-Unit Paper Stacker No. in the Figure Unit / Parts Name 1 (with2~18,PL2.2) TRAY ASSEMBLY (with 2-18 and Tray Unit-End Guide) PLATE BOTTOM PAD BOTTOM...

  • Page 271: Tray Unit - End Guide

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.5 Tray Unit - End Guide Table 7-25. Parts Name for Tray Unit-End Guide No. in the Figure Unit / Parts Name GUIDE ASSEMBLY - END PLATE ASSEMBLY - END ACTUATOR ASSEMBLY CABLE ASSEMBLY SPRING - EXTENSION...

  • Page 272: Tray Interface -Tray 1

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.6 Tray Interface -Tray 1 Table 7-26. Parts Name for Tray Interface-Tray 1 No. in the Figure Unit / Parts Name SW ASSEMBLY-PS MOTOR ASSEMBLY ACTUATOR-SNR SUPPORT ACTUATOR PHOTO INTERRUPTOR CHUTE ASSEMBLY FRONT, 1T (for Tray1 only)

  • Page 273: Paper Pick Up - Tray 1

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.7 Paper Pick Up - Tray 1 Table 7-27. Parts Name for Paper Pick Up-Tray1 No. in the Figure Unit / Parts Name GEAR-46T M/N CLUTCH ASSEMBLY GEAR ASSEMBLY 28T M/N (for Tray 1 only)

  • Page 274: Retard And Take Away-Tray 1

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.8 Retard and Take Away-Tray 1 Table 7-28. Parts Name for Retard & Take Away-Tray1 No. in the Figure Unit / Parts Name RETARD ASSEMBLY, XIP (2 to 8) GEAR 22 T, XIP SHAFT ASSEMBLY RET, XIP...

  • Page 275: Tray Interface-Tray 2

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.9 Tray Interface-Tray 2 Table 7-29. Parts Name for Tray Interface-Tray2 No. in the Figure Unit / Parts Name SW ASSEMMBLY PS MOTOR ASSEMBLY ACTUATOR -SNR SUPPORT ACTUATOR PHOTO INTERRUPTER CHUTE ASSEMBLY FRONT, 2T(for Tray 2 only)

  • Page 276: Paper Pick Up-Tray 2

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.10 Paper Pick Up-Tray 2 Table 7-30. Parts Name for Paper Pick Up-Tray2 No. in the Figure Unit / Parts Name GEAR 46T M/N CLUTCH ASSEMBLY GEAR 28T M/N (for Tray2 and High Capacity Feed only)

  • Page 277: Retard And Take Away- Tray 2

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.11 Retard and Take Away- Tray 2 Table 7-32. Parts Name for Retard and Take Away-Tray2 No. in the Figure Unit / Parts Name RETARD ASSEMBLY, XIP (with 2 to 8) GEAR 22 T, XIP...

  • Page 278: Feed Drive Transmission

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.12 Feed Drive Transmission Table 7-33. Parts Name for Feed Drive Transmission No. in the Figure Unit / Parts Name GEAR 16T GEAR 30T SHAFT C/L T/A SUPPORT C/L T/A GEAR 31T GEAR 33T GEAR 16/22...

  • Page 279: Multi Sheet Inserter And Msi/Duplex Support

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.13 Multi Sheet Inserter and MSI/Duplex Support Table 7-34. Parts Name for Multi Sheet Inserter and MSI/Duplex Support No. in the Figure Unit / Parts Name SUPPORT FRONT COVER SUPPORT REAR COVER MSI/DUPLEX CUPPORT ASSEMBLY HARNESS ASSEMBLY DRAWER( PL11.4.15...

  • Page 280: Msi Feeder Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.14 MSI Feeder Assembly Table 7-35. Parts Name for MSI Feeder Assembly No. in the Figure Unit / Parts Name 1 (with 2~17,PL 4.3) MSI FEEDER ASSEMBLY (with 2-17, PL4.3) MSI LINK GEAR MSI DRIVE GEAR ASSEMBLY MSI DRIVE LINK SPRING PL 4.3...

  • Page 281: Upper Feeder Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.15 Upper Feeder Assembly Table 7-36. Parts Name for Upper Feeder Assembly No. in the Figure Unit / Parts Name (J208) UPPER FEEDER ASSEMBLY(with 2 -26) 1 (with 2~26) MSI FEED CLUTCH (P604) MSI FEED BEARING REAR 1...

  • Page 282: Msi Tray Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.16 MSI Tray Assembly Table 7-37. Parts Name for MSI Tray Assembly No. in the Figure Unit / Parts Name MSI TRAY ASSEMBLY(with 2 - 9) MSI PAD MSI SIDE GUIDE MSI SIZE SENSOR ASSEMBLY...

  • Page 283: Tray 1 Frame And Left Cover

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.17 Tray 1 Frame and Left Cover Table 7-38. Parts Name for Tray1 Frame and Left Cover No. in the Figure Unit / Parts Name PANCHI ROLL ASSEMBLY (with 2 to 7) HOLDING SPRING SHAFT SPRING...

  • Page 284: Tray 2 Frame And Left Cover

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.18 Tray 2 Frame and Left Cover (J144) Table 7-39. Parts Name for Tray 2 Frame and Left Cover (J607) No. in the Figure Unit / Parts Name LEFT LOWER COVER ASSEMBLY(with 2,3, 9-11,14 (J143) and 23) PL11.4.13...

  • Page 285: Registration

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.19 Registration 4 (with 5,6) Table 7-40. Parts Name for Registration No. in the Figure Unit / Parts Name CLUTCH ASSEMBLY REGISTRATION PL11.4.18 (J200) BEARING ROLLER ASSEMBLY REGISTRATION PL11.4.21 CHUTE ASSEMBLY REGISTRATION (J100) CHUTE REGISTRATION...

  • Page 286: Left Upper Cover Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.20 Left Upper Cover Assembly 3 (with 4~14,PL 6.3) Table 7-41. Parts Name for Left Upper Cover Assembly No. in the Figure Unit / Parts Name SHAFT-HINGE SHAFT-HINGE GEAR m/n COVER ASSEMBLY L/H, XIP CHUTE LOWER...

  • Page 287: Transport Chute Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.21 Transport Chute Assembly Table 7-42. Parts Name for Transport Chute Assembly No. in the Figure Unit / Parts Name SHAFT-HINGE SHAFT-HINGE GEAR m/n COVER ASSEMBLY L/H, XIP CHUTE LOWER GUIDE PAPER SPRING COMP CHUTE ASSEMBLY L/H...

  • Page 288: Ros Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.22 ROS Assembly PL11.4.12 (J407) Table 7-43. Parts Name for ROS Assembly (J207) (J106) (J430) PL11.3.15 No. in the Figure Unit / Parts Name ROS ASSEMBLY (J416) SER522FC Figure 7-45. ROS Assembly Xerography and Development Figure 7-46.

  • Page 289: Xerography And Development

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.23 Xerography and Development Table 7-44. Parts Name for Xerography and Development PL11.4.20 (J233) (J232) No. in the Figure Unit / Parts Name 23 (with 24,25) (F5230) BTR ASSEMBLY (with 2-7) (F5231) BTR FRONT LEVER...

  • Page 290: Fuser Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.24 Fuser Assembly Table 7-45. Parts Name for Fuser Assembly No. in the Figure Unit / Parts Name FUSER ASSEMBLY - 115V(Customer Replaceable Unit- CRU) FUSER ASSEMBLY - 220V(Customer Replaceable Unit- CRU) Figure 7-48. Fuser Assembly...

  • Page 291: Exit Lower Chute

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.25 Exit Lower Chute Table 7-46. Parts Name Exit Lower Chute No. in the Figure Unit / Parts Name TRANSPORT ASSEMBLY FULL(with PL9.1, PL9.2, PL9.3, and PL9.4) SOLENOID ASSEMBLY LINK-SOLENOID SPRING OFFSET MOTOR LOWER CHUTE ASSEMBLY(with 7-15)

  • Page 292: Offset Roller

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.26 Offset Roller Table 7-47. Parts Name for Offset Roller No. in the Figure Unit / Parts Name BEARING ROLLER ASSEMBLY-EXIT FUT GEAR-19 ASSEMBLY OFFSET ROLLER ASSEMBLY OFFSET RACK OFFSET BRACKET 4 (with 5~12) OFFSET ROLLER SLEEVE...

  • Page 293: Exit Upper Chute Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.27 Exit Upper Chute Assembly PL9.1.23 (J133) Table 7-48. Parts Name for Exit Upper Chute Assembly No. in the Figure Unit / Parts Name 1 (with 2~16) CHUTE ASSEMBLY-UPPER SWITCH ASSEMBLY PLATE-TIE SPRING PLATE SPRING ASSEMBLY-PINCH, H...

  • Page 294: Exit Drive Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.28 Exit Drive Assembly Table 7-49. Parts Name for Exit Drive Assembly No. in the Figure Unit / Parts Name EXIT DRIVE ASSEMBLY (with 2-19) EXIT DRIVE SUPPORT EXIT DRIVE IDLER PULLEY EXIT GEAR 1...

  • Page 295: Main Drive Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.29 Main Drive Assembly Table 7-50. Parts Name for Main Drive Assembly No. in the Figure Unit / Parts Name MAIN DRIVE ASSEMBLY HARNESS CLAMP PL6.1.8 PL10.2.13 (J205) (P204) PL11.4.23 (J460) SER530FC Figure 7-53. Main Drive Assembly...

  • Page 296: Fuser Drive Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.30 Fuser Drive Assembly 1 (with 2~9) PL11.4.21 Table 7-51. Parts Name for Fuser Drive Assembly (J600) (P12) No. in the Figure Unit / Parts Name (J23) FRAME ASSEMBLY EXIT REAR (with 2-9) GEAR 22T...

  • Page 297: Power Inlet And Lvps

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.31 Power Inlet and LVPS (J420) (F51~54) (J1) (J400) Table 7-52. Parts Name for Power Inlet and LVPS PL11.4.12 No. in the Figure Unit / Parts Name POWER INLET CONNECTOR (J20) (J501) NOISE FILTER PWB 100V/120V...

  • Page 298: Hvps And Mcu Pwb

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.32 HVPS and MCU PWB Table 7-53. Parts Name for HVPS and MCU PWB No. in the Figure Unit / Parts Name AC DRIVER PWB 120V AC DRIVER PWB 220V HVPS MCU ASSEMBLY MCU PWB...

  • Page 299: Controller Assembly

    EPSON EPL-N4000/EPL-N4000+ Chapter 7 Appendix 7.3.33 Controller Assembly Table 7-54. Parts Name for Controller Assembly No. in the Figure Unit / Parts Name CONTROLLER ASSEBLY BUSHS SADDLE BOX ASSEMBLY BUSH SADDLE COVER-ESS COVER-SIMM CONTROLLER BOARD HARNESS ASSEMBLY ROS V HARNESS ASSEMBLY CONSOLE CORE Figure 7-57.

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