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1. Points to be confirmed before maintenance
Before starting maintenance, ask a user and
collect information about troubles occurred on
the machine before the maintenance and the
conditions of the machine to grasp key points
for the maintenance.
2. Copy sample
Be sure to make copy samples at the start and
the end of maintenance for checking images.
3. Drum
1) Never expose the drum to the sunlight. Be
also careful not to expose a drum to indoor
light as far as possible.
When a drum unit or a drum is out of
the machine, never fail to cover it with a drum
cover.
2) When replacing a drum or a cleaning blade,
refer to Item of mounting/dismounting of a
cleaning blade for doing a replacement work.
Main Precautions for Maintenance
4. When replacing the drum and developer, must
perform neccessary adjustment by refering to
the Di750 List of Adjustment Items.
5. After having completed maintenance work, must
reset the PM counter (using the 25 mode).
6. When replacing the fixing unit cleaning web,
must reset the fixing unit cleaning web counter(
using the 36 mode).
7. When replacing a toner cartridge, wait until the
toner supply LED on the operation panel flashes
before the replacement.
caution: Turn the main switch off and pull out
the power pulg without fail before
the work of maintenance.
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