K117sm3e1
3-6
3. 1. 2 .2 Charge of Drum
The Image Corona discharges negative electric charges which are given to the Drum.
The surface of Drum becomes about -630V evenly as a result, which corresponds to the white
area of the printed image pattern.
The Grid Plate is also connected to the High Voltage Power Supply individually.
Current and Voltage supplied to the Image Corona Wire is as follows.
Corona Wire -1.3mA +/-0.05mA
Corona Wire Image Corona
Grid Plate
Drum
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