Disassembly And Assembly - Epson LQ-1070 Service Manual

REV.-A

3.2 DISASSEMBLY AND ASSEMBLY

This section describes the procedures for disassembling and assembling the main components of the
printer. When the procedure for installing a component into the printer is simply the reverse of the
procedure for removing the component, no description of how to install the component is given.
Any points of special concern when assembling or adjusting a component part are given after the
description of the procedure. It is important to take note of these points.
Before disassembling any part of the printer, note the warnings in Section 3.1.
Before disassembling any part of the printer, remove the paper and the ink ribbon.
Disassembly includes the following five procedures:
1. Removing the
2. Removing the
case
3. Removing the electrical circuits
4. Removing the printer mechanism
5. Disassembling the printer mechanism
Diagrams in the appendix show how the components fit together. Refer to them as necessary.
I
Remove printer power cord
and interface cable.
Remove paper.
Remove ribbon cartridge.
3 . 2 . 2 . 1 3 - 6
Removing the Front Case
3 . 2 . 2 . 2 3 - 6
Removing the Upper Case
3 . 2 . 4 3 - 9
Removing the Printer Mechanism
3 . 2 . 5
Disassembling the Printer Mechanism
3 . 2 . 1
Changing the Printhead
3 . 2 . 3 . 3
Removing the Control Panel Board
3 . 2 . 3 . 1
Removing the Main Board
Figure 3-1. Flowchart for Disassembling the Printer
CAUTION
3 . 2 . 5 . 1 2
Disassembling the Tractor Unit
3 - 7 3 . 2 . 3 . 2
Removing the Power Supply Board
3-4
Page
Section
Description
3 - 1 9