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Chapter 2 Disassembling and Reassembling
2.1 Preparation
Notice Before Performing Maintenance Operation:
In order to avoid secondary malfunction due to incorrect operation, the following warnings and
precautions must be observed during the disassembly and reassembling of the equipment.
Warning
After using the printerfor a while, the temperature inside the printer is very high! When
opening the Side Door or the Rear Cover to repair components, do not touch the areas
shown in the high temperature mark.
•
Be careful not to lose the removed screws, washers and other parts.
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Be sure to apply grease to the parts specified in this chapter.
•
When using an electric soldering iron or other heating tools, please be careful not to
damage the wires, circuit boards, casings and other components made of synthetic resin.
•
The static electricity charged by the human body may damage electronic components.
Therefore, when transporting the circuit board, be sure to wrap the circuit board with
conductive foil.
•
When replacing circuit boards and all other parts with circuit boards, please wear a wrist
strap for discharging static electricity and operate on an anti-static mat. In addition, please
be careful not to touch the flat cable and the electrode conductor part of the wire.
•
After unplugging the flat cable, be sure to check that the flat cable plug is in good condition and
that the flat cable is not short-circuited.
•
When inserting the flat cable, be sure to insert it straight, and check that the cable is not crooked
after inserting it.
•
When connecting or disconnecting the patch cord, do not hold the cable part but the
connector part. If there is a lock on the connector, be sure to unlock the lock first.
•
After repairing, please pay attention not only to check the repaired part, but also to check
the connection of the patch cord. In addition, you need to check if other related parts are
working properly.
•
Do not close the front cover forcibly before installing the toner cartridge and drum unit, otherwise
the machine may be damaged.
•
After installation, it is recommended to conduct an insulation withstand voltage test and a
conductivity test.
•
Be careful not to damage the insulating sheet.
•
When replacing the circuit board, be sure to check if there is any foreign matter on the
component surface and soldering surface of the circuit board.
Confidential
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