Ricoh PRIPORT VT 2000 Series Service Manual page 274

9.2 DRUM ROTATION SENSOR ADJUSTMENT
Purpose: To ensure correct main motor speed detection.
1. Remove the rear cover of the machine.
2. Make sure that the drum rotation sensor [A] is positioned so that the
pulse disk [B] is inserted into the sensor by 8 ± 1 mm as shown above.
3. If not, loosen the screw [C] securing the sensor bracket and adjust the
sensor bracket position.
4. After adjustment, set a spanner (10 mm) into the drum shaft and rotate
the drum to make sure that the pulse disk does not contact the sensor
during a rotation.
[B]
[C]
5-61
[B]
[A]
28 February '91
8±1 mm
[A]