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bizhub C4000i/C3300i
I SERVICE MODE
1. Advance checks
Before attempting to work adjustments and settings, the following advance checks must be made. Check to see if:
• The power supply voltage meets the specifications.
• The power supply is properly grounded.
• The machine shares the power supply with any other machine that draws large current intermittently. (e.g., elevator and air conditioner that
generate electric noise)
• The installation site is environmentally appropriate:
• High temperature, high humidity, direct sunlight, ventilation, etc.
• Levelness of the installation site
NOTICE
• Installation Requirements
• The original has a problem that may cause a defective image.
• The density is properly selected.
• The original glass, document reading glass, or related part is dirty.
• Correct paper is being used for printing.
• The units, parts, and supplies used for printing (developer, PC drum, etc.) are properly replenished and replaced when they reach the end
of their useful service life.
• Toner is not running out.
• To unplug the power cord of the machine before starting
the service job procedures.
• If it is unavoidably necessary to service the machine with
its power turned ON, use utmost care not to be caught in
the scanner cables or gears of the exposure unit.
• Special care should be used when handling the fusing unit
which can be extremely hot.
• The developing unit has a strong magnetic field. Keep
watches and measuring instruments away from it.
• Take care not to damage the PC drum with a tool or similar
device.
• Do not touch IC pins with bare hands.
WARNING
CAUTION
I-1
I SERVICE MODE > 1. Advance checks
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