Disassembly/Assembly 115 | Epson N2700 manual

EPSON EPL-N2700

Rev. A

4.2.21.3 Fusing Roller Thermistor / Thermostat / Temperature Fuse Removal

1.Remove the Fuser Unit. (See Section 4.2.21.1.)

2.Release the joint for the Fuser Unit Cover and the Fusing Roller Heater Lamp Front Cover.

3.Remove one screw (3501) securing the Fusing Roller Heater Lamp Front Cover to the Fuser Unit Frame Assembly, and remove the Fusing Roller Heater Lamp Front Cover. (See Section 4.2.21.2.)

4.Remove one E-ring (9107) and one tension spring securing the lever to the rear part of the Fuser Unit, and remove the lever.

Figure 4-40. Lever Removal

5.Release the thermistor harness and paper eject sensor harness from the clamps in the Fusing Roller Heater Lamp Rear Cover.

6.Remove one screw (3501) securing the Fusing Roller Heater Lamp Rear Cover to the User Unit Frame Assembly, and remove the Fusing Roller Lamp rear Cover.

Figure 4-41. Fusing Roller Heater lamp Rear Cover Removal

7.Remove two screws (1305) securing the Fusing Roller Heater Lamp Holder to the Fuser Unit Frame Assembly, and remove the Fusing Roller Heater Lamp Holder.

8.Pull out the Heater Lamp.

Figure 4-42. Fusing Roller Heater Lamp Holder Removal

Chapter 4 Disassembly/Assembly

115

Image 115

Epson N2700 manual Disassembly/Assembly 115

Contents

Epson EPL-N2700 Page Precautions Safety Information Laser Beam Preface Revision Issued Date Description Contents Troubleshooting Appendix Product Description Controller Features Engine FeaturesSoftware ROM Controller SpecificationsCPU RAM Interfaces ConfigurationInstallation Format Other Feature Engine Specifications Paper Supply / Paper Size / Capacity Paper Sources and their Paper Availability Paper Specifications Paper Ejection Consumables and OptionsSupported Paper Sizes Paper Feed Alignment Ozone Density Power Supply SpecificationConsumption Noise Paper Type Process Specifications Special Paper Standard Normal Paper Path AvailabilityPaper Path Availability Printable Area Reliability, Durability, And Maintainability Ejection Curl SkewDurability Maintainability Drop Tolerance Temperature and Humidity Vibration Tolerance13. Environmental Conditions Main Unit AIR Pressure Electrical Specifications Safety Approval Drop Test SpecificationsConsumable Item Environmental Condition for Storage and Transportation 19. Host Interface Usage Configurations Host Interface Usage ConfigurationsParallel I/F Serial I/F Ethernet I/F Type B I/F Serial Interface Parallel Interface 20. Ethernet I\F Pin Assignment Ethernet I/F 21. Emulations Available Type-B I/FEmulation Emulation Type Entity Type Buttons LED IndicatorsControl Panel LCD Panel This printer has a non-volatile memory Eeprom to SelecType Option 2/7 Panel SettingsSetting Items SelecType Option 1/7 25. SelecType Option 4/7 24. SelecType Option 3/7 27. SelecType Option 6/7 26. SelecType Option 5/7 SelecType Option 7/7 Maintenance Menu *24 MP Type Setting Item DescriptionSetting Item Setting value Default Value Setting method MP Tray Size Paper Source Multibin Settings and Corresponding Outbins AvailableOutput Tray Selection Specifications LC1 to LC3 Type Items of restriction on the duplex printing Items of restriction on the paper trayQuantity Printing Menu Duplex Printing Menu 32. Special Functions Available One-Touch Setting31. One-Touch Setting Functions Special Functions Copying the ROM Module Hex-Dump ModeEeprom Initialization Updating the Program ROM Mode Maintenance Mode Sample Engine Status Sheet 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 Optional cassettes When the optional duplex unit are installed Gear/Roller Location Gear/Roller Location Electrical Component Layout Electrical Component Layout Switches and Sensors Switches and SensorsLocation Name Function MP Tray Paper Feeding Section MP Cassette Set Sensor Mechanism Timing Roller Sensor Mechanism Paper Size Detection Mechanism Cassette Cassette 12. Cassette 1 Paper Feeding Mechanism Separators Actuators Paper Size Paper Size and Corresponding Actuator Condition 14. Cassette 1 Paper Empty Sensor Mechanism 16. Cassette 1 Right Door Detecting Sensor 17. Registration Compensation Paper Feed 19. Printhead Unit Mechanism Printhead Unit Exposure Section 20. Print Process Sequence Print Process Sequence Part Names and Functions of the Imaging Cartridge Imaging Cartridge Development Section Charging Section 24. Toner Image Production 25. Transfer Section Mechanism Transfer Section 26. Fusing Section Fusing Section 28. Fuser Temperature Control 29. Paper Exit Sensor Mechanism Paper Exit Section Detection whether New or Used Imaging Cartridge Right Door Interlock Switch Drive Section System Layout 33. System Layout Electrical Section Electrical Section Name Location Functions Main Circuit Video ControllerMain Component in the Main Circuit Board Main Components in the Main Circuit Board Troubleshooting Message Type Printer MessagesMessage List Printer Message Yyy Message Descriptions Error Code Description Service-call ErrorEngine Related Error Engine Related Error List Controller Related Error List Controller Related Error ListError Code ffff Description Adding on RAM TroubleshootingClearing the Service-call Error Troubleshooting The Printer will not Start Printer will no Print Image Quality ProblemsTroubleshooting The Printer will not Print Troubleshooting Image Quality Problem DISASSEMBLY/ASSEMBLY Tool List PrecautionUnplug the power code from the AC socket Tools Small Part Classification Small PartsReference No Size Name Appearance Binding head B-tite Screw Disassembly Procedure ROM Dimm Removal ROM Dimm Replacement Paper Eject Sensor Removal Paper Eject Sensor Removal Taking out the MP Cassette MP Cassette Paper Take-up Roller Removal Transfer Roller Removal Transfer SectionNever touch the transfer roller surface with your bare Timing Roller Front Sensor Removal Transfer Unit Removal 13. Timing Clutch Removal Timing Clutch Removal 14. Timing Roller Removal Timing Roller Removal Internal Cooling Fan Removal Separating the PrinterOutward Transport Motor Removal Rear Cover Removal MP Cassette Size Sensor Removal 8 I/C Drive Motor Removal Top Cover Removal Paper Size Sensor Removal 23. Toner Empty Sensor Removal Toner Empty Sensor Removal 24. Main Circuit Board Removal Main Circuit Board Removal 25. Engine Controller Board Removal Engine Controller Board Removal Disassembly/Assembly 106 With its exhausting side facing outside Power Supply Unit Cooling Fan Removal 29. High Voltage Unit Removal High Voltage Unit Removal Control Panel Removal Front Cover Removal 32. Lever / Left Cover Removal Printhead Unit Removal Disassembly/Assembly 111 34. Harnesses to be Removed Power Supply Unit Removal Fuser Unit Removal Fusing Section 38. Fuser Heater Lamp Front Cover Removal Heater Lamp Replacement Disassembly/Assembly 115 Disassembly/Assembly 116 Disassembly/Assembly 117 48. Fuser Lamp Termistor Removal Upper Paper Separator Finger Removal Upper Paper Eject Roller Removal Lower Paper Separator Finger Removal 53. Lower Paper Eject Roller Removal Lower Paper Eject Roller Removal 54. Fuser Unit Reinforce Plate Removal Drive Unit Removal Disassembly/Assembly 122 MP Cassette Set Sensor Removal MP Cassette Paper Take-up Solenoid SL1 RemovalMP Cassette Paper Empty Sensor Removal 60. MP Cassette Paper Near Empty Sensor Removal MP Cassette Paper Near Empty Sensor Removal Paper Take-up Roller Removal Cassette 1 DisassemblyRoller is securely locked as shown below Cassette 1 Paper Near Empty Sensor Removal Cassette 1 Paper Empty Sensor Removal Cassette 1 Control Board PWB-A Removal Paper Size Paper Size Switch Sensor Removal 65. Cassette 1 Paper Take-up Solenoid Removal Cassette 1 Paper Take-up Solenoid Removal Cassette 1 Right Door Set Sensor Removal Updating the Program ROM Error Indications and MeasuresTo cancel the updating at this point, press the Menu Updating the Firmware Disassembly/Assembly 131 Copying the Dimm Module Adjustment Adjustment 134 Maintenance Replacement of Consumable Item Maintenance by UsersReplacement of Consumable Items User-performable Maintenance List Replaced item Replacement cycle Maintenance by ServicersMaintenance by Servicers After replacing the Fusing Unit, perform Fuser Appendix Connector Summary Engine Controller Board PWB-A Connector Summary C269MAIN Circuit Board PWB-P Pins Connector is connected Harness is connected Connector Summary High Voltage UnitConnector Summary Low Voltage Unit Connector Number Constituent to which Other end Component Layout Parts List Housing HousingRef. No Part Name Appendix Exploded Diagrams 143 Frames Parts List Frames Appendix Exploded Diagrams 145 Fussing Section a Parts List Fusing Section a Appendix Exploded Diagrams 147 Parts List Fusing Section B Fusing Section B Appendix Exploded Diagrams 149 Transport Section a Parts List Transport Section a Appendix Exploded Diagrams 151 Transport Section B 10. Parts List Transport Section B Appendix Exploded Diagrams 153 Electrical Components 11. Parts List Electric Components Appendix Exploded Diagrams 155 Paper Take-up Section 12. Parts List Paper Take-up Section Appendix Exploded Diagrams 157 Drive Section 13. Parts List Drive Section Appendix Exploded Diagrams 159 Paper Tray Unit 14. Parts List Paper Tray Unit Appendix Exploded Diagrams 161 Circuit Diagrams Page