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Info manual:
C2740
Developing release motor time-out error
When the developing release
motor is driven, the developing
release switch (DEVRSW)
is not detectable for 1 s.
Defective connector
cable or poor
contact in the connector.
Reinsert the connector. Also check for continuity
within the connector cable. If none,
replace the cable.
Developing release motor and engine PWB
(YC35)
Defective drive
transmission system
of the developing
release motor.
Check if the rollers and gears rotate
smoothly. If not, grease the bushes and
gears. Check for broken gears and replace if
any.
Defective developing
release motor.
Replace the developing release motor.
Defective engine
PWB.
Replace the engine PWB and check for correct
operation (see page 1-5-26).
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