Epson TX103, TX105, SX100, TX100, NX105, ME 300 Main Board, CN No Cable Cable Color Connector Pins

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

Revision A

Buttons

1.Remove the Button Power and the Button OP from the Panel Cover.

2.Remove the LED Lens from the Panel Cover.

Button OP

LED Lens

Button Power

Panel Cover

Dowel

Figure 4-19. Removing the Buttons

When installing the Panel Board, align the positioning hole of the Panel Board with the dowels of the Panel Cover. (See Fig.4-18 )

When installing the Panel Unit, align the positioning holes of the Middle Housing with the dowels of the Panel Cover, then secure them with four hooks. (See Fig.4-16 ,Fig.4-19 .)

4.4.2 Main Board

Parts/Components need to be removed in advance:

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

Removal procedure

1. Remove all the cables and FFCs connected to the Main Board.

	CN No	Cable	Cable Color	Connector	Pins
				Connector
				Color
				Color

	J2	Panel FFC	---	Black	10

	J3	Power Supply Unit cable	Gray	Brown	3

	J4	Scanner FFC	---	Black	12

	J5	Scanner Motor Cable	Black,Brown,	White	4
			Orenge,Yellow

	J6	PF Motor Cable	Red,	White	2
			Black

	J7	CR Motor Cable	Gray,	Brown	2
			Black

	J8	Head FFC	---	Black	21

	J9	FFC	---	Black	17

J9

J8

J5

J4

J2

Main Board

J6

J3

J7

Figure 4-20. Removing the Main Board (1)

DISASSEMBLY/ASSEMBLY

Removing the Circuit Boards

65

Confidential

Image 65

Contents Confidential Confidential Precautions About This Manual Revision Status Revision Date of Issue DescriptionContents Maintenance Product Description External View FeaturesInk Cartridge Printing SpecificationsBasic Specifications Print Mode Color Print ModePrint Mode Monochrome Media Print Mode Resolution Dot Size cpsSupported Paper Paper Name Paper Size Thickness WeightSupported Paper Asia#DL Printing Area Scanner SpecificationsScanning Range Printing Area MarginsElectrical Specifications General Specifications10. Primary Power Specifications Environmental ConditionsInterface Safety Approvals Safety standards/EMIDurability USB InterfaceOperation Buttons & LEDs Control Panel15. Buttons & LEDs Button/LED FunctionButton Printer Status Functions Control Panel Functions16. Buttons Functions Revision a 17. LED Functions Priority Power LED Paper LED Ink LEDStand-alone Copy Function Supported Paper and Copy ModeSetting for Stand-alone Copy Multiple Copying Copy Speed20. Copy Speed 21. Conditions for Storing the Scanned DataOperating Principles Printer Mechanism OverviewScanner Mechanism CIS & Motor Motors & SensorsPrinter Mechanism Motors & Sensors Nozzle Layout PrintheadTroubleshooting Preliminary Checks Identifying the causes of problems. The parts should beSpecified Tools Disassembled and re-assembled correctly while referring toError 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 Motor Motor Type Drive Voltage Resistance Motor and Sensor Troubleshooting13. Sensor check point DISASSEMBLY/ASSEMBLY Tools PrecautionsTools Name Epson Tool CodeClassification Check Point Status Work Completion CheckWork Completion Check Start Disassembly ProceduresStacker Assy Removing the HousingPaper Support Tray Removing the ASF Cover Document Cover/ASF CoverScanner Stand Scanner Stand /Cover Wire11. Installing the Cover Wire On the Main Board, otherwise, it may gets damaged When removing the FFC and the cable from the connectors as Scanner Unit 14. Removing the Middle Housing Middle HousingRemoving the Circuit Boards „ Be careful when removing the Panel Unit, because the MainPanel Unit Board and the Panel Board on the rear of the Panel Unit areMain 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 HopperEJ Roller/ EJ Frame Assy PF Encoder/ PF ScaleDo not touch the PF Scale with bare hands Do not damage the PF ScaleMaintenance 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 GearPrint quality Main FrameUpper Paper Guide with bare hands to avoid degrading Main Frame „ Do not damage the PF Scale and the Lever Pick Clutch withUpper Paper Guide Required adjustments must be carried outWith bare hands to avoid degrading the print quality Whenever the Upper Paper Guide is removed/replaced,78. Removing the CR Unit CR Unit83. Installing the CR Unit Whenever the CR Unit is removed/replaced, the required Adjustments must be carried outWhenever the PF Roller is removed/replaced, the required PF RollerHands or damage it to avoid degrading the print quality 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 Scanner Unit, make sure to assemble the part referring to Upper Scanner HousingDisassembling the Scanner Unit Grease on the rail of the Lower Scanner Housing Do not scratch the Rod Lens Array when removing the ScannerScanner Carriage Unit Carriage Unit113. Replacing the Spacers 114. Removing the Scanner Motor Unit Scanner Motor UnitAdjustment Adjustment Item Purpose Method Outline Tool Adjustment Items and OverviewServicing Adjustment Item List TBD Additional Functions Maintenance ItemsPurpose Method Outline Tool Additional Functions Purpose Method Outline ToolRequired Adjustment List Required Adjustments TBDAdjustment Items and Overview 104 TOP Margin Adjustment Using the Adjustment Program TBDFirst Dot Position Adjustment Measurement result Selection of adjustment valueAdditional Information Head Angular AdjustmentBi-D Adjustment PF Band Adjustment Printout Pattern How to Judge PF AdjustmentMaintenance Service Maintenance CleaningLubrication Overview 111 Appendix Exploded Diagram / Parts List

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