FS-9120DN/9520DN
2-1-5
2-1-2 Main charging section
The main charging section consists of the main charger assembly, drum and so on. The drum is electrically charged
uniformly by means of a grid to form a latent image on the surface.
The main charger unit charges the drum so that a latent image is formed on the surface, the shield grid ensuring the
charge is applied uniformly.
Main charger unit
Shield grid
Tungsten wire
Drum
Figure 2-1-5 Main charging section
MC REM
24 V DC
MC
Grid
ZENER PCB
Drum
HVTU
YC1-4
YC1-2
YC7-2
YC7-4
EPWB
Figure 2-1-6 Main charging section block diagram
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