Ricoh Robin Service Manual page 185

AROUND THE DRUM
6.10.3 Transfer Corona Current Adjustment (SP9-5)
[C]
ADJUSTMENT STANDARD
DC –31.0 ± 0.5 µA
1. Reinstall the TC/SC corona unit and position the drum shoe [A] on the
center of the shaft so that the axis of the current detection plate [B] is
aligned with the transfer corona wire as shown.
2. Remove the seal [C] from the transport unit.
3. Select the dc 200 µA range on the digital multimeter.
4. Turn on the main switch, close the front cover safety switch, and turn on
the transfer corona using SP9-5.
5. Adjust the transfer corona current to dc –34.0 ± 0.5 µA using VRT on the
TC/SC power pack [D].
6. Press the Clear/Stop key and turn off the main switch.
[A]
[B]
Adjusting VR
VRT
5-60
24 June 1994
[D]
SP mode
SP9-5