4-2 Service Manual
4023-001
During Replacement:
• Before you unplug connectors from the circuit boards, be sure
the power cord has been unplugged from the power outlet.
• When you remove a board from its conductive bag or case, do
not touch the pins of the ICs or the printed pattern. Place it in
position by holding only the edges of the board.
• Before you plug connectors into the board, be sure the power
cord has been unplugged from the power outlet.
• Before removing the finisher or mailbox, ensure that the
horizontal transport unit is firmly supported or removed.
Failure to adhere will result in damage to the finisher or
mailbox mounting brackets.
During Inspection:
• Avoid checking the IC directly with a multi-meter; use
connectors on the board.
• Never create a closed circuit across IC pins with a metal tool.
• If it is necessary to touch the ICs and other electrical
components on the board, be sure to ground your body.
Image Cartridge/PC (I/C) Handling Precautions
The following precautions must be observed when handling the
image cartridge/PC:
During Transportation/Storage:
• Use the specified carton whenever moving or storing the image
cartridge/PC.
Handling:
• The PC drum in the image cartridge/PC exhibits greatest light
fatigue after being exposed to strong light over an extended
period of time. Never expose it to direct sunlight. Cover the
image cartridge/PC when you remove it from the printer.
• Use care not to contaminate the surface of the PC drum with oil-
base solvent, fingerprints, and other foreign matter.
• Do not scratch the surface of the PC drum.
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