Overview; Disassembly Precautions - Epson LQ-1170 Service Manual

3.1 OVERVIEW

This section describes disassembly precautions, tools, service checks after repair, and screw
specifications.

3.1.1 Disassembly Precautions

Follow the precautions below when disassembling the printer.
I
Before disassembling, assembling, or adjusting the printer, disconnect the power cord from the
external AC power socket. Failure to do so risks personal injury. The printer's power switch is wired
into the primary circuitry. As a result, the printer still remains live with current flowing even when
this switch is off.
I
For efficient printer operation, use only the recommended tools for maintenance work.
Use only the lubricants and adhesives recommended in Chapter 6.
Adjust the printer only as described in this manual.
3.1.2
Tables 3-1 and 3-2 list the tools you need when disassembling, assembling, or adjusting the printer.
Use only tools that meet these specifications.
NOTE
All tools are commercially aveilable.
Table 3-1. Recommended Tools
Tool
Round-nose pliers
Nippers
Tweezers
Soldering iron
E-ring holder # 2.5 (Note 2)
E-ring holder # 5
E-ring holder # 6
Phillips screwdriver No. 2
Normal screwdriver
Box driver (7 mm across)
Thickness gauge (0.36 mm)
Thickness gauge (0.40 mm)
Table 3-2. Equipment Required for Maintenance
W A R N I N G
C A U T I O N
Part No.
B740400100
B7405OO1OO
B740200 100
B740800400
B740800700
B740800800
B743800200
B743000 100
—
—
3-1
I