Epson NX105, TX105, SX100, TX100, ME 300, SX105, TX101, TX106, TX109, TX102 LD Roller/ ASF Unit, Quality

Page 91

Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300

Revision A

4.5.13 LD Roller/ ASF Unit

Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p60), Scanner Unit (p62), Middle Housing (p63) Panel Unit (p64), Hopper (p72), Main Board (p65)

CR Motor/ Driven Pulley (p75), Ink System(p77), PF Encoder/ PF Scale(p73) Main Frame (p84)

Removal procedure

CAUTION	Be careful not to touch the LD Roller Assy and the roller part of the
	Retard Roller Assy with bare hands to avoid degrading the print
	quality.

1.Rotate the LD Roller Assy until the flat part of the LD Roller Assy faces upward.

2.Hold the Paper Back Lever outward using tweezers as shown below.

3.Remove the LD Roller Assy from the ASF Unit Shaft Hole while opening the Lever Pick Clutch as shown below.

4.Remove the three screws that secure the ASF Unit.

5.Release the hook and remove the ASF Unit from the Lower Housing.

Hook

Positioning Hole and Dowel

ASF Unit

SCREW M3x10 P-TITE (5±0.5kgfcm)

Figure 4-91. Removing the ASF Unit

6.	Remove the Extension Spring at the bottom of the Retard Roller Assy.
7.	Remove the Retard Roller Assy from the ASF Housing.

Paper Back Lever

Tweezers

Flat part

LD Roller Assy

LD Roller

Shaft Hole

Lever Pick Clutch

ASF Unit

Extension Spring

Retard Roller Assy

Figure 4-90. Removing the LD Roller Assy

ASF Housing

Figure 4-92. Removing the Retard Roller Assy

DISASSEMBLY/ASSEMBLY	Disassembling the Printer Mechanism	91
		Confidential

Image 91

Contents Confidential Confidential Precautions About This Manual Revision Status Revision Date of Issue DescriptionContents Maintenance Product Description External View FeaturesBasic Specifications Printing SpecificationsInk Cartridge Media Print Mode Resolution Dot Size cps Print ModePrint Mode Color Print Mode MonochromeAsia Paper Name Paper Size Thickness WeightSupported Paper Supported Paper#DL Printing Area Margins Scanner SpecificationsPrinting Area Scanning RangeEnvironmental Conditions General SpecificationsElectrical Specifications 10. Primary Power SpecificationsUSB Interface Safety Approvals Safety standards/EMIInterface DurabilityButton/LED Function Control PanelOperation Buttons & LEDs 15. Buttons & LEDs16. Buttons Functions Control Panel FunctionsButton Printer Status Functions Revision a 17. LED Functions Priority Power LED Paper LED Ink LEDSetting for Stand-alone Copy Supported Paper and Copy ModeStand-alone Copy Function 21. Conditions for Storing the Scanned Data Copy SpeedMultiple Copying 20. Copy SpeedOperating Principles Printer Mechanism OverviewPrinter Mechanism Motors & Sensors Motors & SensorsScanner Mechanism CIS & Motor Nozzle Layout PrintheadTroubleshooting Disassembled and re-assembled correctly while referring to Identifying the causes of problems. The parts should bePreliminary Checks Specified ToolsError Indications and Fault Occurrence Causes Error Indications and Fault Occurrence CausesCheck point for Fatal error according to each phenomenon Troubleshooting by Error MessageMaintenance p.116. TBD Main Board When turning on the power, the PF Motor Carriage Unit collides with the Upper Encoder FFC Cap Assy Lever Cleaner Refer to Ink System p.77 Upper Paper Guide Check point for Paper jam error according to each phenomenon Top edge of paper is not loaded to Check point for Paper out error according to each phenomenon Guide pin Clutch LD Roller Shaft Extension Spring Paper Back Lever CR Contact Module PS Board Cable Panel FFC Superficial Phenomenon-Based Troubleshooting 11. Check point for the defective scanned image quality 10. Check point for the abnormal noise12. Check point for the defective printing quality TBD Printer driver Check point for Paper out error according to Ink stain of paper 13. Sensor check point Motor and Sensor TroubleshootingMotor Motor Type Drive Voltage Resistance DISASSEMBLY/ASSEMBLY Name Epson Tool Code PrecautionsTools ToolsWork Completion Check Work Completion CheckClassification Check Point Status Start Disassembly ProceduresPaper Support Tray Removing the HousingStacker Assy Removing the ASF Cover Document Cover/ASF CoverScanner Stand Scanner Stand /Cover Wire11. Installing the Cover Wire Scanner Unit When removing the FFC and the cable from the connectors asOn the Main Board, otherwise, it may gets damaged 14. Removing the Middle Housing Middle HousingBoard and the Panel Board on the rear of the Panel Unit are „ Be careful when removing the Panel Unit, because the MainRemoving the Circuit Boards Panel UnitMain Board CN No Cable Cable Color Connector Pins22. Installing the Main board Power Supply UnitDowel Rib Protrusion Positioning Hole 26. Removing the Printhead Disassembling the Printer Mechanism30. Removing the Printhead 27and -31 36. Removing the CR Scale CR Scale37. Removing the Hopper HopperDo not damage the PF Scale PF Encoder/ PF ScaleEJ Roller/ EJ Frame Assy Do not touch the PF Scale with bare handsMaintenance p.108 45. Removing the CR Motor CR Motor/ Driven Pulley47. Installing the CR Motor 50. Removing the Cap Assy Ink System52. Removing the Cap Assy Felt Wiper 56. Installing the Pump Assy58. Disassembling the Cap Assy Disassembling the Pump Assy 67. Removing the PF Motor PF MotorBe careful of not to break the soldered portions Do not damage the Pinion GearUpper Paper Guide with bare hands to avoid degrading Main FramePrint quality Main Frame „ Do not damage the PF Scale and the Lever Pick Clutch withWhenever the Upper Paper Guide is removed/replaced, Required adjustments must be carried outUpper Paper Guide With bare hands to avoid degrading the print quality78. Removing the CR Unit CR Unit 83. Installing the CR Unit Whenever the CR Unit is removed/replaced, the required Adjustments must be carried outHands or damage it to avoid degrading the print quality PF RollerWhenever the PF Roller is removed/replaced, the required Quality LD Roller/ ASF Unit93. Removing the Lever Pick Clutch 99. Removing the Waste Ink Pads Waste Ink Pads102. Installing the Waste Ink Pads Confidential Disassembling the Scanner Unit Upper Scanner HousingScanner Unit, make sure to assemble the part referring to Carriage Unit Do not scratch the Rod Lens Array when removing the ScannerGrease on the rail of the Lower Scanner Housing Scanner Carriage Unit113. Replacing the Spacers 114. Removing the Scanner Motor Unit Scanner Motor UnitAdjustment Servicing Adjustment Item List TBD Adjustment Items and OverviewAdjustment Item Purpose Method Outline Tool Additional Functions Purpose Method Outline Tool Maintenance ItemsAdditional Functions Purpose Method Outline ToolRequired Adjustment List Required Adjustments TBDAdjustment Items and Overview 104 Measurement result Selection of adjustment value Using the Adjustment Program TBDTOP Margin Adjustment First Dot Position AdjustmentBi-D Adjustment Head Angular AdjustmentAdditional Information PF Band Adjustment Printout Pattern How to Judge PF AdjustmentMaintenance Service Maintenance CleaningLubrication Overview 111 Appendix Exploded Diagram / Parts List

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