Epson FX-870

Disassembly and Assembly
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
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 ...................................................
4-20
Arranging the Cables
................................................................
4-21
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
4-i