Copy Process; Overview - Ricoh Russian-C2a Service Manual

10 August, 2001

1.7 COPY PROCESS

1.7.1 OVERVIEW

9
1. EXPOSURE
A xenon lamp exposes the original. Light reflected from the original passes to
the CCD, where it is converted into an analog data signal. This data is
converted to a digital signal, processed and stored in the memory. At the time
of printing, the data is retrieved and sent to the laser diode. For multi-copy runs,
the original is scanned once only and stored to the memory.
2. DRUM CHARGE
In the dark, the charge roller gives a negative charge to the organic photo-
conductive (OPC) drum. The charge remains on the surface of the drum
because the OPC layer has a high electrical resistance in the dark.
1
8
2
3
4
1-15
COPY PROCESS
B027V401.WMF
7
6
5
B027V101.WMF