3.1 OVERVIEW
This sectiondescribe svarious pointsto note when disassemblingand assembling theprinter.
3.1.1 Precautions
Follow theprecautions belowfor disassembly or assembly.
Before disassembling, assembling, or adjusting the printer, disconnect the power supply cable from
the AC power socket. Failure to do so can cause physical injury. The power switch is wired in the
secondary circuitry. Therefore, the printer’s primary circuitry remains live even after the power
switch is turned off.
Never touch primary parts of the the power supply unit (including the heat sink) while the power
supply cable is connected to the AC power socket.
To maintain efficient printer operation:
•Use only recommended tools for maintenance work.
•Use only recommended lubricants and adhesives (see Chapter 6).
•Adjust the printer 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
onlytools that meet these specifications.
Table 3-1. Recommended Tools
Tool Part No.
Round-nose pliers B740400100
Nippers B740500100
Tweezers B741000100
Soldering iron B740200100
E-ring holder #2.5 B740800400
Phillips screwdriver No.2 B743800200
Standard screwdriver B743000100
Thickness gauge B776702201
Note: Alltools are comme rciallyavailable.
Table 3-2. Equipment Required for Maintenance
Description Specification
Multimeter ——
Oscilloscope 50 MHz
Note: An oscilloscope isrequired onlyfor servicers who repairto the component level.
FX-2170 ServiceManual Disassembly and Assembly
Rev.A 3-1