Charge Corona - Ricoh FT7060 Field Service Manual

60. Charge Corona

OPTIMUM VALUE: dc 73.1 to 74.0 µA
Align the drum shoe [A] with the charge corona unit [B]
1.
2. Select the dc A range on the digital multimeter.
3. Turn on the main switch and charge corona using SP 11-1.
Confirm that the corona current at the front of the drum is the same as
4.
that at the rear of the drum.
the height adjusting screw [C] to achieve an even current flow.
5. Position the drum shoe in the center.
6. Adjust the charge corona current by turning VR "C" [D] on the charge/
PCC power pack.
7. Remove the drum shoe.
8. Reinstall all parts.
Check copy quality.
9.
If not even, adjust the wire height with
(Let the reading stabilize for 10 seconds.)
3-81
12 July '86
shown.
as