The DC controller determines a developing disengagement motor abnormality and notifies the formatter
when it does not detect a specified signal from the developing disengagement sensor during the developing
roller engagement and disengagement operation.
Figure 1-25 Developing unit engagement and disengagement control
M6
DC controller
Developing disengagement motor
Developing unit
Developing disengagement cam
Photosensitive drum
PS11:
Developing
disengagement
sensor
Developing unit is engaged
Developing unit is disengaged
36 Chapter 1 Theory of operation ENWW
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