Power Supply Unit Removal, Harnesses to be Removed | Epson N2700

EPSON EPL-N2700

Rev. A

4.2.20 Power Supply 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 four screws (3541) securing the Left Cover (rail) to the printer frame and remove the left cover.

5.Remove four screws (3501) securing the Left Reinforce Plate to the printer frame and PH Plate and remove the Left Reinforce Plate.

6.Disconnect the harnesses from the Power Supply Board Unit.

Figure 4-34. Harnesses to be Removed

7.Remove three screws; one 1305 (at the rear side of the printer) and two 3501, securing the Power Supply Board Unit Mounting Plate to the printer frame, and remove the Power Supply Unit Mounting Plate with the Power Supply Unit on it.

8.Release the harness connecting from the Power Supply Unit to the Fuser Unit from the cable clamp attached to the Power Supply Unit.

9.Remove seven screws (3501) securing the Power Supply Unit to the Power Supply Unit Mounting Plate.

Figure 4-35. Power Supply Unit Removal

Chapter 4 Disassembly/Assembly

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Image 112

Epson N2700 manual Power Supply Unit Removal, Harnesses to be Removed

Contents

Epson EPL-N2700 Page Precautions Safety Information Laser Beam Preface Revision Issued Date Description Contents Troubleshooting Appendix Product Description Controller Features Engine FeaturesSoftware Controller Specifications CPURAM ROM Configuration Installation FormatOther Feature Interfaces Engine Specifications Paper Supply / Paper Size / Capacity Paper Specifications Paper Sources and their Paper Availability Consumables and Options Supported Paper SizesPaper Feed Alignment Paper Ejection Power Supply Specification ConsumptionNoise Ozone Density Process Specifications Paper Type Paper Path Availability Paper Path AvailabilityPrintable Area Special Paper Standard Normal Reliability, Durability, And Maintainability Skew DurabilityMaintainability Ejection Curl Temperature and Humidity Vibration Tolerance 13. Environmental Conditions Main UnitAIR Pressure Drop Tolerance Electrical Specifications Safety Approval Specifications Consumable ItemEnvironmental Condition for Storage and Transportation Drop Test 19. Host Interface Usage Configurations Host Interface Usage ConfigurationsParallel I/F Serial I/F Ethernet I/F Type B I/F Parallel Interface Serial Interface Ethernet I/F 20. Ethernet I\F Pin Assignment 21. Emulations Available Type-B I/FEmulation Emulation Type Entity Type LED Indicators Control PanelLCD Panel Buttons This printer has a non-volatile memory Eeprom to Panel Settings Setting ItemsSelecType Option 1/7 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 Setting Item Description Setting Item Setting value Default Value Setting methodMP Tray Size MP Type Multibin Settings and Corresponding Outbins Available Output Tray Selection SpecificationsLC1 to LC3 Type Paper Source Items of restriction on the paper tray Quantity Printing MenuDuplex Printing Menu Items of restriction on the duplex printing One-Touch Setting 31. One-Touch Setting FunctionsSpecial Functions 32. Special Functions Available Hex-Dump Mode Eeprom InitializationUpdating the Program ROM 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 Switches and Sensors Switches and SensorsLocation Name Function 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 Circuit Video Controller Main Component in the Main Circuit BoardMain Components in the Main Circuit Board Name Location Functions Troubleshooting Printer Messages Message ListPrinter Message Message Type Yyy Message Descriptions Service-call Error Engine Related ErrorEngine Related Error List Error Code Description Controller Related Error List Controller Related Error ListError Code ffff Description Troubleshooting Clearing the Service-call ErrorTroubleshooting The Printer will not Start Adding on RAM Image Quality Problems Troubleshooting The Printer will not PrintTroubleshooting Image Quality Problem Printer will no Print DISASSEMBLY/ASSEMBLY Precaution Unplug the power code from the AC socketTools Tool List Small Part Classification Small PartsReference No Size Name Appearance 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 Transfer Roller Removal Transfer SectionNever touch the transfer roller surface with your bare Transfer Unit Removal Timing Roller Front Sensor Removal Timing Clutch Removal 13. Timing Clutch Removal Timing Roller Removal 14. Timing Roller Removal Internal Cooling Fan Removal Separating the PrinterOutward 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 Set Sensor Removal MP Cassette Paper Take-up Solenoid SL1 RemovalMP Cassette Paper Empty Sensor Removal MP Cassette Paper Near Empty Sensor Removal 60. MP Cassette Paper Near Empty Sensor Removal Paper Take-up Roller Removal Cassette 1 DisassemblyRoller is securely locked as shown below 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 Error Indications and Measures To cancel the updating at this point, press the MenuUpdating the Firmware Updating the Program ROM Disassembly/Assembly 131 Copying the Dimm Module Adjustment Adjustment 134 Maintenance Maintenance by Users Replacement of Consumable ItemsUser-performable Maintenance List Replacement of Consumable Item Maintenance by Servicers Maintenance by ServicersAfter replacing the Fusing Unit, perform Fuser Replaced item Replacement cycle Appendix Connector Summary C269MAIN Circuit Board PWB-P Connector Summary Engine Controller Board PWB-A Connector Summary High Voltage Unit Connector Summary Low Voltage UnitConnector Number Constituent to which Other end Pins Connector is connected Harness is connected Component Layout Parts List Housing HousingRef. No Part Name 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