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40930701TH DRAFT Vesion 52 /
3. PARTS REPLACEMENT
The section explains the procedures for replacement of parts, assemblies, and units in the field.
Only the removal procedures are explained here. Reverse the procedure for the installation.
3.1 Precautions for Parts Replacement
(1) Before starting parts replacement, remove the AC cable and interface cable.
(a) Remove the AC cable in the following procedure:
i) Turn off ("o") the power switch of the printer
ii) Disconnect the AC inlet plug of the AC cable from the AC receptacle.
iii) Disconnect the AC cable and interface cable from the printer.
(b) Reconnect the printer in the following procedure.
i) Connect the AC cable and interface cable to the printer.
ii) Connect the AC inlet plug to the AC receptacle.
iii) Turn on ("l") the power switch of the printer.
OFF
ON
Disconnect
Connect
(2) Do not try disassembly as long as the printer is operating normally.
(3) Do not remove unnecessary parts: try to keep disassembly to a minimum.
(4) Use specified service tools.
(5) When disassembling, follow the determined sequence. Otherwise, parts may be damaged.
(6) Since screws, collars and other small parts are likely to be lost, they should temporarily be
attached to the orginal positions.
(7) When handling ICs such as microprocessors, ROM and RAM, and circuit boards, do not wear
gloves that are likely to generate static electricity.
(8) Do not place printed circuit boards directly on the equipment or floor.