20 February, 2001 COPY PROCESS OVERVIEW
6-7
Detailed
Descriptions
6.3 COPY PROCESS OVERVIEW
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.
NOTE: For multi-copy runs, the original is scanned once only and stored to the
memory. B039 models outside N. America do not have memory as a
standard component, so cannot do multi-copying.
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.
B039D353.WMF
B039D251.WMF
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