2AV/X
1-6-44
1-6
1-6-6 Developing section
(1) Adjusting the position of the doctor blade (reference)
Perform the following adjustment if carrier or background appears on the copy image.
Procedure
1. Remove the image formation unit (see page
1-6-40).
2. Remove the charger assembly (see page 1-
6-40).
3. Remove the screw holding the MC rail and
then the rail.
Figure 1-6-60
4. Remove the screw holding the doctor blade
cover and then the cover.
Caution: When refitting the doctor blade
cover, be sure to refit the bias wire.
Figure 1-6-61
5. Measure the distance between the doctor
blade and the developing roller at the three
points indicated by the circles using a
thickness gauge. Adjust the distances with
the three screws until the correct
measurements are obtained; the 0.55 mm
gauge should go into the gap and the 0.65
mm one should not.
Caution: The smaller the distance, the lighter
the image; the larger the distance, the darker
the image.
6. Refit all the removed parts.
Figure 1-6-62
MC rail
Bias wire
Doctor blade cover
Doctor blade
Adjustment screws
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