Epson TM-FX2180 manual Precautions, Tools, Description Specification

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EPSON FX-2180 Service Manual	Chapter 4 Disassembly and Assembly

4.1 Overview

This section provides warnings and cautions about disassembling and assembling the printer, and information about tools and screws. It also describes how to check the printer after you repair it to make sure it is operating properly.

4.1.1Precautions

Follow the precautions below when disassembling or assembling the printer.

4.1.2Tools

Tables 4-1 and 4-2 list the tools recommended for disassembling, assembling, or adjusting the printer. Use only tools that meet these specifications.

Table 4-1. Recommended Tools

	Tool		Part No.

	Round-nose pliers		B740400100
	Wire cutters		B740500100
	Tweezers		B741000100
	Soldering iron		B740200100

WARNING

Before disassembling, assembling, or adjusting the printer, disconnect the power supply cable from the AC power socket. Failure to do so can cause physical injury.

The power switch is wired in the secondary circuitry of the power supply board. Therefore, the power supply’s primary circuitry remains

Tlive even after the printer is turned off.

Never touch primary parts of the power supply unit (including the heat sink) while the printer is plugged in.

		E-ring holder #2.5	B740800400
		Phillips screwdriver No. 2	B743800200
		Standard screwdriver	B743000100
		Thickness gauge	B776702201
		Needle-nose pliers	—
		Pin drive	—
Note: All tools are commercially available.
Table 4-2. Equipment Required for Maintenance

Description		Specification

Multimeter		—
Oscilloscope		50 MHz

CAUTION

o maintain efficient printer operation:

Use only recommended tools for repair or maintenance work.

Use only recommended lubricants and

Tadhesives. (See Chapter 6.)

Adjust the printer only as described in this manual.

Note: An oscilloscope is required only for servicers who repair to the component level.

4-1

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Contents 659,&0$18$ FCC Compliance Statement For American Users Trademarks Precautions Preface Table of Contents Page Page Product Description Print Speed and Printable Columns SpecificationsPrinting Specifications Character Printable Printing Speed cpsPrintable Area ResolutionPrinting Mode Vertical Adjacent Dot Density dpiContinuous Paper EnvelopesPostcards Roll PaperPaper Specifications Paper Feed SpecificationsFront Entry Rear Entry Minimum Maximum Minimum Maximum Front Entry Rear Entry Bottom Entry Min Max Software Specifications Interface SpecificationsFront Entry Bottom Entry Minimum Maximum Environmental Conditions Electrical SpecificationsPhysical Specifications ReliabilityOperation Button Function LEDsLEDs Color Description Beeper Error Beep PatternPaper Release Lever Positions Lever Position DescriptionPaper Thickness Lever Positions Turning on the Double-strike ModeSpecial Functions Printing a Self TestChanging Default Settings Using the Bidirectional Adjustment ModeSetting Options Clearing the Eeprom Consumables and OptionsPrinting a Hex Dump ConsumablesOperating Principles Overview Printer MechanismBoard Input Voltage Fuse F1 Rating Power Supply CircuitPower Supply Circuit Operation Output Voltage ApplicationsControl Circuit Control Circuit OperationComponent Functions CPU IC2+$375 Troubleshooting Information Print HeadSensors Sensor Test PointsError Conditions MotorsUnit Level Troubleshooting Symptom Problem Description FlowchartFlowchart Abnormal Paper Feeding Abnormal Power Operation Repairing the Power Supply Board Problem Cause Checkpoint SolutionWaveform Repairing the Main Board Assembly Problem Cause Checkpoint Solution15. Waveform Repairing the Printer Mechanism Repairing the Printer MechanismFFC TOP Troubleshooting Disassembly and Assembly Tools PrecautionsDescription Specification ToolSpecifications for Screws Abbreviation Part NameService Check After Repair Category Item to Question to Answer CheckmarkDisassembly and Assembly Whenever you repair the printer, wipePreparing to Disassemble the Printer Rear tractor tab 1Removing the Panel Board Assembly Removing the Panel Board AssemblyConnecting the Print Head FFCs Removing the Print HeadRemoving the PW Sensor Assembly Removing the HP Sensor10. Installing the PW Sensor Assembly Removing the Ribbon MaskRemoving the Upper Housing Assembly 13. Removing the Upper Housing AssemblyRemoving the Platen Assembly 15. Removing the Platen AssemblyRemoving the Case Open Sensor Assembly Removing the Platen Gear18. Removing the Case Open Sensor Assembly Removing the Printer MechanismConnector Pins CN9Removing the CR Motor Assembly 21. Removing the CR Motor AssemblyRemoving the PF Motor Assembly 22. Removing the PF MotorRemoving the PG Sensor Assembly 23. Removing the PG Sensor AssemblyRemoving the Right Sub Frame Assembly Removing the Right Frame AssemblyDisassembling the Right Frame Assembly $-86701727. Engaging the Right Frame Assembly Gears 1 Removing the Left Frame Assembly 29. Engaging the Tractor Clutch CamRemoving the Ribbon Drive RD Assembly 30. Removing the Left Frame AssemblyRemoving the CR Assembly Tightening torque for the two CBS screws34. Inserting the Timing Belt Removing the Rear PE Sensor Assembly 36. Installing the Rear CR Guide Shaft38. Removing the Front PE Sensor Assembly 39. Removing the Upper Shield Plate and Upper I/F Removing the Power Supply Board Assembly 41. Removing the Power Supply Board AssemblyAdjustments Required Adjustments Adjustment OverviewAdjustment Tools Adjusting and Resetting the Printer Platen Gap/Parallelism AdjustmentSetting the PG Adjustment Lever Bidirectional Print Alignment Bi-d Adjustment Adjusting the Parallelism of the Carriage Guide ShaftPerforming the Bi-d Adjustment Using the Settings Diskette Destination SettingPerforming the Bi-d Adjustment from the Control Panel Bi-d Adjustment MenuFactory Settings 11. Pitch LightsTPE Level Reset TPE level. Check that the reset value is FF17. Main Menu Adjustments Maintenance Preventive Maintenance Lubrication Name Quantity Availability Part NumberMaintenance Ref. No Lubrication Points Quantity LubricantLubrication Points 1 Appendix Board Connector Function Pins Connector SummarySignal Name Function Pin Signal Name Function Table A-8. Connector Pin Assignments − CN9 Table A-13. Connector Pin Assignments − CN14 Circuit Board Component Layout Diagrams Figure A-3. C244 Main Board Component Layout Diagram 2Figure A-4. C166 PSB Board Component Layout Diagram Circuit Board and Exploded Diagrams Page DB1 A t s in k Q 1 , D 5 Page Exploded Diagram for FX-21801 Exploded Diagram for FX-21802 Exploded Diagram for FX-21803