Epson LQ-510 Technical Manual page 130

REV.-A
DISASSEMBLY, ASSEMBLY, AND ADJUSTMENT
4.1 GENERAL REPAIR INFORMATION ...................................................
4.2 DISASSEMBLY AND REASSEMBLY .................................................
4.2.1 Printhead Removal ..............................................................
4.2.2 Removal of Cases ...............................................................
4.2.3 Removal of Circuit Boards ...................................................
4.2.4 Removal of Printer Mechanism .............................................
4.2.5
4.3 ADJUSTMENT ................................................................................
4.3.1 Platen Gap Adjustment ........................................................
4.3.2
Figure 4-1.
Figure 4-2.
Figure 4-3.
Figure 4-4.
Figure 4-5.
Figure 4-6
LQ-510
CHAPTER
4.2.2.1 Upper Case Removal .............................................
Control Panel (SANPNL) Board Removal.. ............... 4-7
4.2.2.2
4.2.3.1 SAMA Board Removal ...........................................
4.2.3.2 SANPS(E) Board Removal ...................................... 4-10
Removal of Platen Unit and Paper Guide.. .............. 4-11
4.2.4.1
Removal of Printer Mechanism .............................. 4-14
4.2.4.2
Disassembly of Printer Mechanism ....................................... 4-15
Removal of the Paper-Feed Mechanism.. ................ 4-15
4.2.5.1
4.2.5.2
Removal of Paper-Feed Motor, Release Lever, and
Release/Tractor Sensor ........................................
4.2.5.3 Removal of Paper-End Sensor ............................... 4-19
4.2.5.4 Disassembly of Platen Unit .................................... 4-19
4.2.5.5 Removal of Carriage Unit ...................................... 4-20
4.2.5.6 Removal of Carriage Motor .................................... 4-23
4.2.5.7 Removal of Home-Position Sensor.. ....................... 4-24
4.2.5.8 Disassembly of Ribbon-Feed Mechanism.. .............. 4-24
4.2.5.9 Disassembly of Tractor Unit .................................. 4-25
Adjustment of Bidirectional Printing Alignment ..................... 4-29
4.3.2.1 Bidirectional Adjustment DIP Switch.. .................... 4-29
4.3.2.2 Adjustment Procedures .........................................
LIST OF FIGURES
Paper Tension Unit Cover ................................................
Printhead Removal ..........................................................
Net .................................................................................
Push Tractor Removal .....................................................
Upper Case Removal - 1 ..................................................
Upper Case Removal - 2 .................................................
DISASSEMBLY, ASSEMBLY, AND ADJUSTMENT
4
4-1
4-3
4-3
4-5
4-5
4-8
4-8
4-11
4-17
4-27
4-27
4-30
4-3
4-4
4-4
4-5
4-6
4-6
4-i