Specifications

2-20
2.4.6 Drum Charging
•
A scorotron charger system generates a negative DC corona discharge onto the PC Drum surface. The
grid mesh ensures uniform charging.
•
The grid voltage (Vg) applied to the grid mesh is controlled by the constant voltage circuitry within the
High Voltage Unit. It is varied through image stabilization control.
•
To restrict ozone production, the machine uses a PC Drum Charge Corona with a comb electrode.
PC Drum
PC Drum Charge Corona
Comb Electrode
Grid Mesh
Electrical Component Control Signal ON OFF
Drum charging output
PJ14A-3A
See block diagram of the printer.
LH