2JZ/2JX/2JV/2H7-1
1-5-35
(3) Detaching and refitting the drum unit
Follow the procedure below to replace the drum unit.
Caution
Avoid direct sunlight and strong light when detaching and refitting the drum unit.
Never touch the drum surface.
Example of detaching and refitting: drum unit Y
Procedure
1. Remove the image formation holder (see
page 1-5-30).
2. Remove developing units K and C that are
adjacent to drum unit Y.
3. Remove the fuser unit (see page 1-5-41).
4. Remove the transfer belt unit (see page 1-5-
37).
5. Remove the connector.
Figure 1-5-60
6. Remove the drum unit Y.
7. Check or replace the drum unit Y and refit all
the removed parts.
Caution:
When refitting the drum unit, secure the
developing unit and then secure the transfer
belt unit.
8. When the drum unit is replaced with a new
one, carry out the following procedure.
9. Perform maintenance mode U119 (drum
setup) (see page 1-3-63).
10. Perform maintenance mode U930 (clearing
the charger roller count) (see page 1-3-138).
11. Perform maintenance mode U464 (AC cali-
bration) (see page 1-3-120).
12. Perform the following image adjustment.
1)Color Calibration
2)Color Registration
3)Maintenance mode U412 (adjusting the
uneven density) (see page 1-3-114).
4)Maintenance mode U410 (Adjusting the
halftone automatically) (see page 1-3-
110).
Figure 1-5-61
Drum unit Y
Connector
Drum unit Y
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