Printhead Unit Removal, Lever / Left Cover Removal | Epson N2700

EPSON EPL-N2700

Rev. A

4.2.19 Printhead Unit Removal

1.Remove the Rear Cover. (See Section 4.2.6.)

2.Remove the Top Cover. (See Section 4.2.11.)

3.Remove the Front Cover. (See Section 4.2.17.)

4.	Remove the following screws and remove the Shield Cover. (See
	Section 4.2.13.)
	Sixteen screws (3501: marked with A in the figure) securing the
	Shield Cover to the printer frame.
	Three screws (1305: marked with B in the figure) securing the
	Shield Cover to the Interface bracket.
5.	Remove twelve screws (1305: marked with C in the figure) securing
	the Main Circuit Board to the Main Circuit Board Mounting Plate.
6.	Disconnect the control panel harness connecting to the Main Circuit
	Board from the CN3.
7.	Remove seven screws (1305) securing the Interface bracket to the
	printer frame, and remove the Interface bracket along with the Main
	Circuit Board by moving it upward.
8.	Remove the Engine Controller Board. (See Section 4.2.14.)
9.	Remove the Control Pane. (See Section 4.2.18.)
10.	Remove four screws (3541) securing the Left Cover (rail) to the	Figure 4-32. Lever / Left Cover Removal
	printer fame and remove the left cover.

11.Remove five screws (3509) securing the lever to the printer frame and remove the lever.

Chapter 4 Disassembly/Assembly

110

Image 110

Epson N2700 manual Printhead Unit Removal, Lever / Left Cover Removal

Contents

Epson EPL-N2700 Page Precautions Safety Information Laser Beam Preface Revision Issued Date Description Contents Troubleshooting Appendix Product Description Software Engine FeaturesController Features RAM Controller SpecificationsCPU ROM Other Feature ConfigurationInstallation Format Interfaces Engine Specifications Paper Supply / Paper Size / Capacity Paper Specifications Paper Sources and their Paper Availability Paper Feed Alignment Consumables and OptionsSupported Paper Sizes Paper Ejection Noise Power Supply SpecificationConsumption Ozone Density Process Specifications Paper Type Printable Area Paper Path AvailabilityPaper Path Availability Special Paper Standard Normal Reliability, Durability, And Maintainability Maintainability SkewDurability Ejection Curl AIR Pressure Temperature and Humidity Vibration Tolerance13. Environmental Conditions Main Unit Drop Tolerance Electrical Specifications Safety Approval Environmental Condition for Storage and Transportation SpecificationsConsumable Item Drop Test Parallel I/F Serial I/F Ethernet I/F Type B I/F Host Interface Usage Configurations19. Host Interface Usage Configurations Parallel Interface Serial Interface Ethernet I/F 20. Ethernet I\F Pin Assignment Emulation Emulation Type Entity Type Type-B I/F21. Emulations Available LCD Panel LED IndicatorsControl Panel Buttons This printer has a non-volatile memory Eeprom to SelecType Option 1/7 Panel SettingsSetting Items SelecType Option 2/7 24. SelecType Option 3/7 25. SelecType Option 4/7 26. SelecType Option 5/7 27. SelecType Option 6/7 Maintenance Menu *24 SelecType Option 7/7 MP Tray Size Setting Item DescriptionSetting Item Setting value Default Value Setting method MP Type LC1 to LC3 Type Multibin Settings and Corresponding Outbins AvailableOutput Tray Selection Specifications Paper Source Duplex Printing Menu Items of restriction on the paper trayQuantity Printing Menu Items of restriction on the duplex printing Special Functions One-Touch Setting31. One-Touch Setting Functions 32. Special Functions Available Updating the Program ROM Hex-Dump ModeEeprom Initialization Copying the ROM Module Maintenance Mode Mode Engine Status Sheet Sample Engine Status Sheet EPL-N2700 Revision a LC1 Data name Storage location Count condition Clear condition 34. Exterior View of the Printer Main Body Weight Operating Principles Printer Mechanism Operating Principles When the optional duplex unit are installed Optional cassettes Gear/Roller Location Gear/Roller Location Electrical Component Layout Electrical Component Layout Location Name Function Switches and SensorsSwitches and Sensors Paper Feeding Section MP Tray MP Cassette Set Sensor Mechanism Timing Roller Sensor Mechanism Paper Size Detection Mechanism Cassette Cassette Separators 12. Cassette 1 Paper Feeding Mechanism Paper Size and Corresponding Actuator Condition Actuators Paper Size 14. Cassette 1 Paper Empty Sensor Mechanism 16. Cassette 1 Right Door Detecting Sensor Paper Feed 17. Registration Compensation Printhead Unit Exposure Section 19. Printhead Unit Mechanism Print Process Sequence 20. Print Process Sequence Imaging Cartridge Part Names and Functions of the Imaging Cartridge Charging Section Development Section 24. Toner Image Production Transfer Section 25. Transfer Section Mechanism Fusing Section 26. Fusing Section 28. Fuser Temperature Control Paper Exit Section 29. Paper Exit Sensor Mechanism Right Door Interlock Switch Detection whether New or Used Imaging Cartridge System Layout Drive Section Electrical Section 33. System Layout Electrical Section Main Components in the Main Circuit Board Main Circuit Video ControllerMain Component in the Main Circuit Board Name Location Functions Troubleshooting Printer Message Printer MessagesMessage List Message Type Yyy Message Descriptions Engine Related Error List Service-call ErrorEngine Related Error Error Code Description Error Code ffff Description Controller Related Error ListController Related Error List Troubleshooting The Printer will not Start TroubleshootingClearing the Service-call Error Adding on RAM Troubleshooting Image Quality Problem Image Quality ProblemsTroubleshooting The Printer will not Print Printer will no Print DISASSEMBLY/ASSEMBLY Tools PrecautionUnplug the power code from the AC socket Tool List Reference No Size Name Appearance Small PartsSmall Part Classification Binding head B-tite Screw Disassembly Procedure ROM Dimm Replacement ROM Dimm Removal Paper Eject Sensor Removal Paper Eject Sensor Removal MP Cassette Paper Take-up Roller Removal Taking out the MP Cassette Never touch the transfer roller surface with your bare Transfer SectionTransfer Roller Removal Transfer Unit Removal Timing Roller Front Sensor Removal Timing Clutch Removal 13. Timing Clutch Removal Timing Roller Removal 14. Timing Roller Removal Outward Separating the PrinterInternal Cooling Fan Removal Rear Cover Removal Transport Motor Removal 8 I/C Drive Motor Removal MP Cassette Size Sensor Removal Paper Size Sensor Removal Top Cover Removal Toner Empty Sensor Removal 23. Toner Empty Sensor Removal Main Circuit Board Removal 24. Main Circuit Board Removal Engine Controller Board Removal 25. Engine Controller Board Removal Disassembly/Assembly 106 Power Supply Unit Cooling Fan Removal With its exhausting side facing outside High Voltage Unit Removal 29. High Voltage Unit Removal Front Cover Removal Control Panel Removal Printhead Unit Removal 32. Lever / Left Cover Removal Disassembly/Assembly 111 Power Supply Unit Removal 34. Harnesses to be Removed Fusing Section Fuser Unit Removal Heater Lamp Replacement 38. Fuser Heater Lamp Front Cover Removal Disassembly/Assembly 115 Disassembly/Assembly 116 Disassembly/Assembly 117 Upper Paper Separator Finger Removal 48. Fuser Lamp Termistor Removal Lower Paper Separator Finger Removal Upper Paper Eject Roller Removal Lower Paper Eject Roller Removal 53. Lower Paper Eject Roller Removal Drive Unit Removal 54. Fuser Unit Reinforce Plate Removal Disassembly/Assembly 122 MP Cassette Paper Empty Sensor Removal MP Cassette Paper Take-up Solenoid SL1 RemovalMP Cassette Set Sensor Removal MP Cassette Paper Near Empty Sensor Removal 60. MP Cassette Paper Near Empty Sensor Removal Roller is securely locked as shown below Cassette 1 DisassemblyPaper Take-up Roller Removal Cassette 1 Paper Empty Sensor Removal Cassette 1 Paper Near Empty Sensor Removal Paper Size Paper Size Switch Sensor Removal Cassette 1 Control Board PWB-A Removal Cassette 1 Paper Take-up Solenoid Removal 65. Cassette 1 Paper Take-up Solenoid Removal Cassette 1 Right Door Set Sensor Removal Updating the Firmware Error Indications and MeasuresTo cancel the updating at this point, press the Menu Updating the Program ROM Disassembly/Assembly 131 Copying the Dimm Module Adjustment Adjustment 134 Maintenance User-performable Maintenance List Maintenance by UsersReplacement of Consumable Items Replacement of Consumable Item After replacing the Fusing Unit, perform Fuser Maintenance by ServicersMaintenance by Servicers Replaced item Replacement cycle Appendix Connector Summary C269MAIN Circuit Board PWB-P Connector Summary Engine Controller Board PWB-A Connector Number Constituent to which Other end Connector Summary High Voltage UnitConnector Summary Low Voltage Unit Pins Connector is connected Harness is connected Component Layout Ref. No Part Name HousingParts List Housing Appendix Exploded Diagrams 143 Parts List Frames Frames Appendix Exploded Diagrams 145 Parts List Fusing Section a Fussing Section a Appendix Exploded Diagrams 147 Fusing Section B Parts List Fusing Section B Appendix Exploded Diagrams 149 Parts List Transport Section a Transport Section a Appendix Exploded Diagrams 151 10. Parts List Transport Section B Transport Section B Appendix Exploded Diagrams 153 11. Parts List Electric Components Electrical Components Appendix Exploded Diagrams 155 12. Parts List Paper Take-up Section Paper Take-up Section Appendix Exploded Diagrams 157 13. Parts List Drive Section Drive Section Appendix Exploded Diagrams 159 14. Parts List Paper Tray Unit Paper Tray Unit Appendix Exploded Diagrams 161 Circuit Diagrams Page