2RV/2RW/2RX/2RY/3RA-1
3-5
(2) Descriptions about the major PWBs
(2-1) Main/Engine PWB
It controls the software for interface, image
data processing, etc. and hardware for the
operation unit, high voltage/bias output,
paper conveying mechanism, etc.
Figure 3-5
(2-2) High-voltage PWB
Output the main charger high-voltage, the
developer bias, the transfer bias, separa-
tion bias and the transfer cleaning bias.
Figure 3-6
(2-3) Power source PWB
The input voltage (AC) from the AC power
supply is changed and output to DC such
as DC24V. It also controls the fuser heater.
Figure 3-7
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