Ricoh C211 Service Manual page 624

1. Master Miss-Eject
< Phenomenon>
1-2. Master eject jam indicator blinks.
F+g$
*
When the drum begins reverse rotation, during the master eject process, the
master eject jam indicator lights and the drum stops rotating in reverse.
* At this time, the master is still wrapped around the drum.
< Possible causes>
<Countermeasure >
1.
The master eject indicator lights be- 1. Remove the second drum position sensor
cause of contamination (ink, oil, paper and clean off the contamination build up
dust, etc.) build up on the light emitting on the light emitting and light detecting
and light detecting surface [A] of the surfaces [A] of the sensor.
second drum position sensor.
* When the drum starts rotating in the
reverse direction, the CPU starts
checking for the master eject detec-
tion signal as the second drum posi-
tion sensor is ON due to contamina-
tion. However, the master eject
switch does not turn on within the
specified time (120 degrees of rota-
tion). Therefore, the master eject jam
indicator lights and the drum stops.
2. The second drum position sensor is 2. Replace the second drum position
faulty. sensor.
6-2