2JZ/2JX/2JV/2H7-1
1-5-34
(2) Detaching and refitting the developing unit
Follow the procedure below to replace the developing unit.
Example of detaching and refitting: developing unit Y
Procedure
1. Remove the image formation holder (see
page 1-5-30).
2. Close the toner replenishment lid.
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.
6. Remove the screw.
Figure 1-5-58
7. Remove the developing unit Y.
8. Check or replace the developing unit Y and
refit all the removed parts.
Caution:
When refitting the developing unit, secure
the developing unit and then secure the
transfer belt unit.
When securing the developing unit, be sure
to insert the unit all the way into the machine
and fix it using the screw.
9. When the developing unit is replaced with a
new one, carry out the following procedure.
10. Perform maintenance mode U464 (AC cali-
bration) (see page 1-3-120).
11. 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 1-5-59
Developing
unit Y
Connector
Toner replenishment lid
Screw
Developing unit Y
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