Epson TM-FX2180 manual Ffc

Page 42

EPSON FX-2180 Service Manual

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

Problem

 

Symptom

 

Cause

 

Checkpoint

 

Solution

Chapter 3 Troubleshooting

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

Problem

 

Symptom

 

Cause

 

Checkpoint

 

Solution

Carriage operation is abnormal.

The carriage

There is a lack

Move the

Replace

moves slightly

of lubrication,

 

carriage by

the oil

and then stops.

or foreign

 

hand to check if

pad.

 

material is

 

it moves

Remove

 

stuck on the

 

smoothly.

the CR

 

CR shaft or oil

Check the CR

shaft,

 

pad.

 

shaft and oil

clean it,

 

 

 

pad to see if

and then

 

 

 

they are

lubricate

 

 

 

sufficiently

it.

 

 

 

lubricated.

 

 

The HP sensor

Check the

Replace

 

is defective.

operation of the

the HP

 

 

HP sensor. (See

sensor.

 

 

Table 3-2.)

 

 

Foreign

Check the HP

Remove

 

material is

sensor.

any

 

lodged

 

 

foreign

 

between the

 

 

material.

 

HP sensor

 

 

 

 

terminals.

 

 

 

 

The HP sensor

Check the

Connect

 

is not properly

connection.

CN4.

 

connected to

 

 

 

 

CN4.

 

 

 

The carriage

The HP sensor

Check the

Replace

moves left

is defective.

operation of the

the HP

(toward the

 

HP sensor. (See

sensor.

home position)

 

Table 3-2.)

 

and strikes the

 

 

 

 

printer frame.

 

 

 

 

 

 

 

 

 

Printing is

No image is

The common

Check the

Replace

abnormal.

printed.

wires in the

common wires

the print

 

 

print head FFC

in the print head

head FFC.

 

 

are dis-

FFC.

 

 

 

connected or

 

 

 

 

there is no

 

 

 

 

continuity.

 

 

 

The printer

The print head

Measure the coil

Replace

 

does not print

is defective.

resistance of the

the print

 

certain dots.

 

print head. It

head.

 

 

 

should be

 

 

 

 

approx. 16.4 Ω.

 

 

 

 

(See Table 3-1.)

 

 

 

The common

Check the

Replace

 

 

wires in the

continuity in the

the print

 

 

print head FFC

FFC.

head FFC.

 

 

are dis-

 

 

 

 

connected, or

 

 

 

 

there is no

 

 

 

 

continuity.

 

 

3-12

Image 42
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 Feed Specifications Paper SpecificationsFront Entry Rear Entry Minimum Maximum Minimum Maximum Front Entry Rear Entry Bottom Entry Min Max Interface Specifications Software SpecificationsFront Entry Bottom Entry Minimum Maximum Environmental Conditions Electrical SpecificationsPhysical Specifications ReliabilityOperation LEDs Button FunctionLEDs 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 TestUsing the Bidirectional Adjustment Mode Changing Default SettingsSetting 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 Adjustment Overview Required AdjustmentsAdjustment 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 Connector Summary Board Connector Function PinsSignal 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