Service manual

Chapter 3
Disassembly and Assembly
General Repair Information
.................................................................
3-1
Tools
...........................................................................................
3-2
Small Parts
................................................................................
3-3
Service Checklist
................................................................................... 3-5
Disassembly and Assembly
.................................................................
3-6
Removing the Printhead
..........................................................
3-7
Removing the Case
....................................................................
3-8
Removing the upper case
.............................................. 3-9
Removing the control panel
3-10 .................................................
Removing the Circuit Boards ....................................................
3-11
Removing the C064 MAIN board ........................................ 3-11
Removing the PEBFIL-II board........................................... 3-12
Removing the transformer ...................................................
3-13
Removing the Printer Mechanism ............................................
3-14
Removing the platen unit and the paper guide.. ................. 3-15
Removing the printer mechanism ....................................... 3-17
Disassembling the Printer Mechanism .....................................
3-19
Removing the paper feed mechanism.................................. 3-19
Removing the paper feed motor........................................... 3-23
Removing the paper end sensor...........................................
3-24
Disassembling the platen unit............................................. 3-24
Removing the carriage unit................................................. 3-26
Removing the carriage motor .T ............................................ 3-30
Removing the home position sensor..
..................................
3-32
Disassembling the ribbon feed mechanism......................... 3-33
Disassembling the tractor unit............................................ 3-34
Figures
Figure 3-1.
Figure 3-2.
Figure 3-3.
Figure 3-4.
Figure 3-5.
Figure 3-6.
Figure 3-7.
Figure 3-8.
Figure 3-9.
Figure 3-10.
Figure 3-11.
Figure 3-12.
Figure 3-13.
Figure 3-14.
Figure 3-15.
Figure 3-16.
Figure 3-17.
Figure 3-18.
Removing the Printhead ................................ ......... 3-7.
Removing the Upper Case - 1
.................................
3-8
Removing the Upper Case - 2
................................. 3-9
Removing the Control Panel.................................... 3-10
Removing the C064 MAIN Board ............................ 3-11
Removing the PEBFIL-II Board
...............................
3-12
Removing the Transformer
......................................
3-13
Removing the Printer Mechanism
...........................
3-14
Removing the Platen Unit ....................................... 3-15
Back of the Printer Mechanism
...............................
3-16
Paper End Sensor Arm
.............................................
3-17
Removing the Printer Mechanism
...........................
3-18
Removing the Paper Release Lever......................... 3-19
Removing the Paper Feed Roller Shaft.................... 3-20
Removing the Paper Guide Plate and Spacer.. ....... .3-21
Installing the Paper Guide Plate and Spacer.. ........ 3-22
Removing the Paper Feed Motor ............................. 3-23
Removing the Paper End Sensor .............................
3-24
LQ-2OO/AP3000
3-i