Transfer Corona - Ricoh FT5580 Service Manual

12 June 1987

Transfer Corona

Optimum Adjusting Value: DC + 18.5 ± 1.0µA
1. Reinstall the TC/SC corona unit and position the drum shoe at the
center of the shaft, so that the axis of the current sensing plate [A]
is aligned with the transfer corona wire [B].
2. Select the dc 200 µA range of the digital multimeter.
3. Turn on the DIP switch on the switching PCB corresponding to "T" on
the TC/SC power pack PCB to turn on the transfer corona. (The silk
screen printed on the TC/SC power pack PCB is correct.)
4. Adjust the corona current by turning VR "T" [C] on the TC/SC power
pack. (Wait 30 seconds for the current to stabilize.)
5. Remove the drum shoe, and reassemble.
6. Check copy quality.
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