LQ-300 Service Manual
Disassembly and Assembly
3.1 OVERVIEW
This section describes various points to
note when
disassembling and assembling the printer.
3.1.1 Disassembly Precautions
Follow the precautions below when disassembling the printer.
Before disassembling, assembling, or adjusting the printer, disconnect the power
supply
cablefiom
the
AC
power socket. Failure to do so
can
cause personal
injuy.
To maintain
efi”cient
printer operation:
●
Use
only the recommended tools for maintenance work.
●
Use only the recommended
lubn”cants
and adhesives
(see
Chapter
6).
.
Adjust the
pn”nter
only in the manner described in this manual.
3.1.2
Tools
Tables 3-1 and 3-2 list the tools recommended for disassembling, assembling, or adjusting the
printer. Use only tools that meet these specifications.
Note:
Note:
Table 3-1. Recommended Tools
Tool
Part No.
Round-nose pliers
6740400100
Nippers
B7405OO1OO
Tweezers
6741000100
Soldering iron
B7402OO1OO
E-ring holder #2.5
6740800400
Phillips screwdriver No.2
6743800200
Normal screwdriver
6743000100
Thickness gauge
6776702201
All tools are commercially available.
Table 3-2. Equipment Required for Maintenance
Description
Specification
Multimeter
Oscilloscope
50
MHz
An
oscilloswpe
is required only for servicers who repair to the component level.
Rev.A
3-1
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