45487001TH Rev.1
3-2 /
Oki Data CONFIDENTIAL
3. Component replacement
3.1 Precautions on component replacement
(1) Disconnect the AC cable and the interface cable before replacing the parts.
(a) Disconnect the AC cable according to the following procedure.
①
Turn off the printer, then the LED indicator goes out.
②
Disconnect the AC plug from the AC power source outlet.
③
Disconnect the AC cable and the interface cable from the printer.
Risk of Electric Shock
There is a risk of electric shock during replacement of the low voltage power supply.
Use insulating gloves or avoid direct contact with any conducting part of the
power supply, and caution should be exercised during replacement.
The capacitor may take one minute to complete discharge after the AC cable
is unplugged. Also, there is a possibility that the capacitor doesn’t discharge
because of a breakage of the PCB, etc., so remember the possibility of electric
shock to avoid electric shock.
(b) Reconnect the printer according to the following procedure.
①
Connect the AC cable and the interface cable to the printer.
②
Connect the AC plug to the AC power source outlet.
③
Turn on the printer, then the LED indicator goes on.
(2) Do not disassemble it if the printer works normally.
(3) Disassemble it as required. Do not remove the part that is not shown in the
replacement procedure.
(4) Please use the specified maintenance tool.
(5) Disassemble it according to the proper procedure. It may cause damage to the
parts if disassemble it without following the proper procedure.
(6) As the small parts such as the screws are lost easily, please fix them to the
original position temporarily.
(7) Do not use gloves that may cause static electricity easily when handling IC and
the circuit board such as microprocessor, ROM, and RAM.
(8) Do not put the PCB on the device and the floor directly.
(9) Do not work for a long time with the printer with the top cover open, and an
image drum unit installed in it.
Reconnecting
Disconnecting
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