Epson TM-FX2180 manual Troubleshooting

Page 44

EPSON FX-2180 Service Manual

Table 3-8. Repairing the Printer Mechanism (Continued)

Problem

 

Symptom

 

Cause

 

Checkpoint

 

Solution

 

 

 

 

 

 

 

 

 

Paper

 

When you turn

 

Foreign

 

Remove and

 

Remove

feeding is

 

on the printer, it

 

material is

 

check the platen.

 

any foreign

abnormal.

 

ejects the

 

lodged

 

 

 

material

 

 

paper auto-

 

between the

 

 

 

from the

 

 

matically and a

 

front or rear PE

 

 

 

platen.

 

 

paper out error

 

sensor and the

 

 

 

 

 

 

occurs.

 

platen.

 

 

 

 

 

 

 

 

CN5 or CN6 is

 

Check the

 

Connect

 

 

 

 

disconnected.

 

connections.

 

CN5 and/or

 

 

 

 

 

 

 

 

CN6.

 

 

 

 

The front or

 

Check the

 

Replace

 

 

 

 

rear PE sensor

 

operation of the

 

the front or

 

 

 

 

is defective.

 

front and rear PE

 

rear PE

 

 

 

 

 

 

sensors. (See

 

sensor.

 

 

 

 

 

 

Table 3-2.)

 

 

 

 

When you load

 

The TOP

 

Check the

 

Connect

 

 

paper, the

 

sensor’s FFC is

 

connection.

 

the FFC.

 

 

printer ejects it

 

not properly

 

 

 

 

 

 

automatically.

 

connected to

 

 

 

 

 

 

 

 

CN7.

 

 

 

 

 

 

 

 

The FFC is

 

Check the FFC’s

 

Replace

 

 

 

 

defective.

 

continuity using a

 

the FFC.

 

 

 

 

 

 

multimeter.

 

 

 

 

 

 

The TOP

 

Check the

 

Replace

 

 

 

 

sensor is

 

operation of the

 

the TOP

 

 

 

 

defective.

 

TOP sensor.

 

sensor.

 

 

 

 

 

 

(See Table 3-2.)

 

 

 

 

 

 

 

 

 

 

 

Chapter 3 Troubleshooting

Table 3-8. Repairing the Printer Mechanism (Continued)

Problem

 

Symptom

 

Cause

 

Checkpoint

 

Solution

 

 

 

 

 

 

 

 

 

Paper

 

The printer loads

 

CN12 is not

 

Check the

 

Connect CN12.

feeding is

 

single-sheet

 

connected

 

connection.

 

 

abnormal.

 

paper correctly,

 

properly.

 

 

 

 

 

 

but does not

 

 

 

 

 

 

 

 

load continuous

 

 

 

 

 

 

 

 

paper at all.

 

 

 

 

 

 

 

 

 

 

One of the

 

Check the

 

Replace the

 

 

 

 

paper release

 

operation of the

 

paper release

 

 

 

 

sensors is

 

paper release

 

sensor.

 

 

 

 

defective.

 

sensors. (See

 

 

 

 

 

 

 

 

Table 3-2.)

 

 

Ribbon

 

The printer does

 

The ribbon

 

Remove the

 

Replace the

feeding is

 

not feed the

 

cartridge is

 

cartridge, and

 

ribbon

abnormal.

 

ribbon.

 

defective.

 

turn the ribbon

 

cartridge.

 

 

 

 

 

 

feed knob by

 

 

 

 

 

 

 

 

hand to check if

 

 

 

 

 

 

 

 

the ribbon

 

 

 

 

 

 

 

 

cartridge feeds

 

 

 

 

 

 

 

 

the ribbon

 

 

 

 

 

 

 

 

normally.

 

 

 

 

 

 

Foreign

 

Check the

 

Remove any

 

 

 

 

material is

 

ribbon driving

 

foreign material

 

 

 

 

caught in the

 

gears.

 

caught in the

 

 

 

 

ribbon driving

 

 

 

gears or

 

 

 

 

gears.

 

 

 

replace the

 

 

 

 

 

 

 

 

ribbon

 

 

 

 

 

 

 

 

cartridge.

 

 

The ribbon feeds

 

The ribbon

 

Move the

 

Replace the

 

 

properly only

 

driving gears

 

carriage by

 

ribbon driving

 

 

when the

 

are defective.

 

hand to check if

 

mechanism.

 

 

carriage moves

 

 

 

the gears

 

 

 

 

in one direction.

 

 

 

function

 

 

 

 

 

 

 

 

normally.

 

 

3-14

Image 44
Contents 659,&0$18$ FCC Compliance Statement For American Users Trademarks Precautions Preface Table of Contents Page Page Product Description Specifications Printing SpecificationsPrint Speed and Printable Columns Character Printable Printing Speed cpsResolution Printing ModePrintable Area Vertical Adjacent Dot Density dpiContinuous Paper EnvelopesPostcards Roll PaperFront Entry Rear Entry Minimum Maximum Paper Feed SpecificationsPaper Specifications Minimum Maximum Front Entry Rear Entry Bottom Entry Min Max Front Entry Bottom Entry Minimum Maximum Interface SpecificationsSoftware Specifications Electrical Specifications Physical SpecificationsEnvironmental Conditions ReliabilityOperation LEDs Color Description LEDsButton Function Error Beep Pattern Paper Release Lever PositionsBeeper Lever Position DescriptionTurning on the Double-strike Mode Special FunctionsPaper Thickness Lever Positions Printing a Self TestSetting Options Using the Bidirectional Adjustment ModeChanging Default Settings Consumables and Options Printing a Hex DumpClearing the Eeprom ConsumablesOperating Principles Overview Printer MechanismPower Supply Circuit Power Supply Circuit OperationBoard Input Voltage Fuse F1 Rating 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 Precautions Description SpecificationTools 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 Adjustment Tools Adjustment OverviewRequired Adjustments 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 Signal Name Function Connector SummaryBoard Connector Function Pins 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