2GZ/2G1-2
2-2-1
2-2 Electrical Parts Layout
2-2-1 Electrical parts layout
(1) PWBs
Figure 2-2-1 PWBs
1. Main PWB (MPWB) ..................................... Implements firmware for managing data processing for printing, interface
with PC and the network, etc.
2. Engine PWB (EPWB)................................... Controls printer hardware including electrical components.
3. Power source PWB (PSPWB) ..................... Generates +24 V DC, 5 V DC and 3.3 V DC; controls the fuser heaters.
4. High voltage PWB (HVTPWB) ..................... Main charging. Generates developing bias and high voltages for transfer.
5. Operation panel PWB (OPPWB) ................. Displays LCD messages and LED indicators. Controls key inputs.
6. Laser diode PWB (LDPWB)......................... Generates and controls the laser light.
1
2
6
3
4
5
Machine front
Machine inside
Machine rear
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