2RV/2RW/2RX/2RY/3RA
4-1
4 Maintenance
4-1 Precautions for the maintenance
(1) Precautions
Before disassembling the main unit, press the main power switch to turn the power off. Make sure that the
power lamp on the operation panel is off and unplug the power cord from the wall outlet. Then, start the
disassembly.
When handling the PWBs (printed wiring boards), do not touch parts with bare hands. Make sure not to
damage the PWB.
If ICs are mounted on the PWB, do not touch them by hand or something charged with electrostatic.
Make sure to release the hook before disconnecting the connector with the hook.
Take care not to pinch up the wire and cable.
Use the original screws when reassembling the parts once disassembled.
If the types and the sizes of screws are not sure, refer to the parts list.
(2) Storage and handling of the drum
Note the following when handling and storing the drum.
When detaching the drum unit, never expose the drum surface to strong direct light.
Store in the place of ambient temperature of -20 to 40 degree C and ambient humidity of 85% RH or less.
Avoid storing the drum unit in the place where the temperature and humidity may suddenly change even if
these changes are within the tolerable range.
Avoid exposure to any substance which is harmful or may affect the quality of the drum.
Do not touch the drum surface with any object.
Make sure not to touch the drum surface with bare hands or gloves.
If the drum is touched by hands or stained with oil, clean it.
(3) Storage of the toner container
Store the toner container in a cool, dark place.
Do not place the toner container under direct sunshine or in a damp environment.
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