Printer Disassembly And Assembly - Epson LQ-2170 Service Manual

Disassembly and Assembly

3.2. PRINTER DISASSEMBLY AND ASSEMBLY

This section describes procedures for disassembling and assembling the main components of the printer.
When the procedure for installing a component is simply the reverse of removing the component, this chapter
does not describe the assembly procedure. If necessary, special notes on assembling or adjusting a component
are given at the end of the description of each procedure. Be sure to follow the instructions in these notes.
Before disassembling any part of the printer, note the warnings in Section 3.1.
Before beginning to disassemble the printer, remove the paper and the ink ribbon.
Also disconnect the interface cable.
Whenever the printer is repaired, wipe the surface of the paper width (PW) sensor assembly
with a soft cloth, and keep it clean to avoid abnormal operation. If the surface is dirty from
any adhering material, sensor sensitivity goes down and operation is not correct.
Note: Exploded diagrams in the appendix show you how the components fit together. Refer to
them as necessary. The flowchart below shows the order you need to use to disassemble the
printer. For details of the required adjustments, refer to Chapter 4.
3.2.3
3.2.3
3.2.2 Page 3-6
Removing the
Removing the Panel
Printhead
Board Assembly
3.2.9
3.2.8 Page 3-12 3.2.9
Removing the CR Motor
Removing the Cse
Assembly
Open Sensor
3.2.10.2
3.2.10.1 Page 3-14
Removing PG Sensor
Removing the PFMotor
Assembly
Page 3-20
3.2.10.6 3.2.10.7
Removing the RD
Removing CR Assembly
Assembly
Figure 3-2 Flowchart for Disassembling the Printer
3-4
START
Disconnect the printer's power cord and interface cable.
3.2.1 Page 3-5
Before Starting Disassembly Pricedure
Page 3-7
3.2.4 Page 3-8
Page 3-7
Removing the
HP Sensor
3.2.7 Page 3-11
Removing Upper Housing Assembly
Page 3-12 Page 3-13
3.2.10
Removing the
Printer Mechanism
3.210.3 Page 3-16
Page 3-15
Removing the Right
Frame Assembly
3.2.10.8
Page 3-23
Page 3-21
Removing the Rear PE
Sensor
LQ-2170 Service Manual
: Bi-d adjustment is required
: PG adjustment is required
: Bi-d & PG adjustment are required
: Bi-d Adjustment & Factory Setting
are required (when the parts is
replaced to new one)
: TPE Level Reset is required
the parts is replaced to new one)
3.2.5
Page 3-8 3.2.6 Page 3-10 3.2.6
3.2.5
Removing the Removing the
PW Sneosr Assembly Platen Assembly
3.2.11
Page 3-24 3.2.12
Rem oving C165 PSB/E
Removing C165 MAIN
Bo ar d
Bo ar d
3.2.10.4 Page 3-16 3.2.10.5
Disassemble Right
Removing the Left
Frame Assembly
Frame Assembly
3.2.10,9 Page 3-23
Removing the Fron PE
Sensor
( when
Page 3-10
Page 3-25
Page 3-19
Rev.A