Ricoh FW830 Service Manual page 216

31 December 1992
1.3 VOID COPY IMAGE
1.3.1 Vertical Void Band
Do vertical void bands appear only on solid areas (not on half tone image areas)?
Yes No
Charge corona wire may be dirty.
⇒ Clean or replace transfer corona wire.
Transfer corona wire may be dirty.
⇒ Clean or replace transfer corona wire.
1.3.2 Entire Void Image (Light Copy)
Is temperature and humidity high?
Yes No
Is the charge corona unit set properly?
Yes No
Charge corona unit may be not set properly.
⇒ Reset charge corona unit.
Does the transfer corona leak detection LED light?
Yes No
Transfer corona leak.
⇒ Clean transfer corona unit. Replace transfer power pack if necessary.
Development roller may not rotate.
⇒ Check and repair the development drive section.
Is copy quality improved by high humidity copy mode?
Yes No
Charge corona wire may be dirty.
⇒ Clean or replace charge corona wire.
Paper has absorbed moisture.
⇒ Replace paper and instruct the customer to keep paper in a dry place.
TROUBLESHOOTING FOR COPY IMAGE
6-7