Ricoh A151 Field Service Manual page 335

Rev. 7/97
18.6 TRANSFER CORONA CURRENT ADJUSTMENT (SP9-5)
ADJUSTMENT STANDARD
DC –31.0 ± 0.5 µA
1. If previously removed, 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 –31.0 ± 0.5 µA using VRT on the

TC/SC power pack [D].
6. Press the key and turn off the main switch.
SM
REPLACEMENT AND ADJUSTMENT
[A]
[B]
A203R505.img
[C]
[D]
A203R507.img
Adjusting VR
VRT
8-57
A203R506.img
SP Mode
SP9-5
A202/A203