44015503TH Rev. 1
62 /
Oki Data CONFIDENTIAL
4. REPLACEMENT OF PARTS
4.1 Notes on replacement of parts
(1) Prior to replacing a part, unplug the AC cord and the interface cable.
(a) Be sure to use the following procedure to unplug the AC cord:
Turn off the printer (the power switch to the off (O) position).
Pull out the AC plug of the AC cord from the AC power source.
Unplug the AC cord and the interface cable.
(2) Do not disassemble the printer so long as it operates properly.
(3) Minimize disassembly. Do not detach the parts not shown in the part replacement
procedure.
(
4) Use the replacement tools specified.
(5) Conduct disassembly in the order instructed, or part damage may occur.
(6) Removed small parts, such as screws or collars, should be tentatively installed in
their original positions.
(
7) Do not use static-prone gloves when handling integrated circuits (ICs) or circuit
boards, including microprocessors, and ROM and RAM chips.
(
8) Do not place printed-circuit boards (PCBs) directly on the printer or a floor.
(b) Be sure to use the following procedure to reconnect the printer:
Connect the AC cord and the interface cable to the printer.
Insert the AC plug into the AC power source.
Turn on the printer (the power switch to the on (I) position).
Electric shock hazard.
When replacing the low-voltage power supply, due to potential electric shock,
wear insulated gloves or be careful not to touch the conductors or terminals of
the power supply directly.
After the AC cord is unplugged, the capacitor may take about one minute to
discharge completely, or could not discharge due to PCB breakdown. Use
caution about electric shock.
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