Disassembly And Assembly - Epson LQ-2550 Technical Manual

4.2 DISASSEMBLY AND ASSEMBLY

This section describes the procedures for disassembling the main components of the LQ-2550 printer,
with illustrations. The disassembled components are reassembled by simply performing the disassem-
bly operation in reverse sequence. Assembly procedures, therefore, have been omitted. However,
special notes for assembly are labeled "ASSEMBLY POINT." For assembly and disassembly procedures
which require adjustments, the necessary adjustments are indicated by "ADJUSTMENT REQUIRED."
Refer to Figures A-55, A-56 and A-57, which are exploded diagrams of the LQ-2550 and the printer
mechanism.
Read Section 4.1, General Repair Information, before disassembling the printer.
. Remove the paper and the ribbon cartridge when disassembling the printer.
The disassembly sequence in this section is grouped into five parts: (1) removal of the printhead, (2)
removal of the upper case, (3) removal of the tractor unit, (4) removal of the circuit boards, and (5)
disassembly of the printer mechanism.
This sequence is shown in Figure 4-4.
START
Power Cord, Interface cable,
Paper Removal
Printer Cover Removal
(Refer to Section 4.2.2 Upper
Case Removal.)
4 . 2 . 2
4-7
Upper Case Removal
4.2.3.1 4.8
Push Tractor Unit
Removal
I
I
Cooling Fan
R e m o v a l
4 .2.1
4 - 6
I
Control Panel
Removal
Figure 4-4. Printer Disassembly Procedures
W A R N I N G
I
4-5
I
REV.-A