44952001TH Rev.2
4-2
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, then the LED indicator goes out.
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) Minimizedisassembly.Donotdetachthepartsnotshowninthepartreplacement
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.
Electricshockhazard.
Be sure to unplug the AC cable as some circuits keep working while the power
cable is connected even after the power is turned off.
When replacing the low-voltage power supply and high-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.
(b) Be sure to use the following procedure to reconnect the printer:
Connect the AC cord and the interface cable to the printer.
Turn on the printer.
Turn on the printer, then the LED indicator lights up.
Unplugging
Plugging
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