Epson FX-870 Service Manual page 78

Chapter 4
Disassembly and Assembly
Precautions .............................................................................................
Tools ........................................................................................................
Service Checks After Repair ...................................................................
Screw Specifications ...............................................................................
Notes for Unit Removal and Installation ............................................... 4-4
Items to Remove Before Disassembling the Printer ............................. 4-5
Removing the Panel Unit .......................................................................
Removing the Printhead ........................................................................
Removing the Upper Housing Assembly ............................................... 4-8
Removing the Printer Mechanism .........................................................
Removing the Platen Assembly ................................................ 4-10
Removing the Rear Frame Assembly ....................................... 4-11
Removing the CR Motor Assembly ........................................... 4-12
Removing the PF Motor Assembly ........................................... 4-13
Disassembling the PF Gear Train ............................................ 4-14
Removing the Carriage Guide Assembly ................................. 4-15
Removing the Ribbon Drive (RD) Assembly ............................ 4-17
Removing the Home Position (HP) Sensor ............................... 4-18
Removing the Platen Gap (PG) Sensor .................................... 4-18
Removing the Front and Rear Paper End (PE) Sensors...... ....... .4-19
Removing the Release Sensor ...................................................
Arranging the Cables ................................................................
Disassembling the Tractor Unit ............................................... 4-22
Removing the C094 MAIN Board Assembly ............................ 4-23
Removing the C076 PSB Board Assembly ............................... 4-24
List of Figures
Figure 4-1. Flowchart for Disassembling the Printer ......................... 4-4
Figure 4-2. Removing the Paper Guide Assembly .............................. 4-5
Figure 4-3. Removing the Panel Unit .................................................. 4-6
Figure 4-4. Connecting the FFC Cable to the Panel Unit .................. 4-6
Figure 4-5. Removing the Printhead ................................................... 4-7
Figure 4-6. Removing the Upper Housing Assembly .......................... 4-8
Figure 4-7. Removing the Printer Mechanism .................................... 4-9
Figure 4-8. Removing the Platen Assembly ...................................... 4-10
Figure 4-9. Removing the Rear Frame Assembly ............................. 4-11
Figure 4-10. Removing the CR Motor Assembly ................................. 4-12
Figure 4-11. Positioning the CR Motor Assembly ............................... 4-12
Epson FX-870/1170
Disassembly and Assembly
4-1
4-1
4-2
4-3
4-6
4-7
4-9
4-20
4-21
4-i