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Chapter 4 disassembly and assembly, Chapter 6 principles of operation, Chapter 7 reference materials – Epson FX-870/1170 User Manual

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Contents

Chapter 4

Disassembly and Assembly

Precautions .............................................................................................

4-1

Tools .......................................................................................................

4-1

Service Checks After Repair ..................................................................

4-2

Screw Specifications ...............................................................................

4-3

Notes for Unit Removal and Installation .............................................. 4-4
Items to Remove Before Disassembling the Printer ............................. 4-5

Removing the

Panel Unit .......................................................................

4-6

Removing the Printhead ........................................................................

4-7

Removing the Upper Housing Assembly ............................................... 4-8
Removing the Printer Mechanism .........................................................

4-9

Chapter 5

Adjustments, Maintenance, and

Lubrication

Adjusting the Printer Mechanism ...........................................................

5-1

Bidirectional Alignment Adjustment .......................................................

5-3

Preventive Maintenance ..........................................................................

5-5

Lubrication ...............................................................................................

5-5

Chapter 6

Principles of Operation

Printer Mechanism Operation .................................................................

6-1

Power Supply Operation ........................................................................

6-19

Control Circuit Operation ......................................................................

6-22

Chapter 7

Reference Materials

Connector Summary ................................................................................

7-1

Circuit Diagrams ......................................................................................

7-5

Circuit Board Component Layouts ........................................................

7-10

Outline Drawings ...................................................................................

7-13

X

Epson FX-870/1170