Opc Drum; Opc Drum Charge Section - MINOLTA-QMS Magicolor 2200 Series Manual

2

OPC drum charge section

Before exposing to laser light, the comb electrode scorotron system is used to perform a minus (-) scorona discharge to
the surface of the OPC drum, and the ozone created by the grid mesh is drawn in by the ozone fan and removed by the
ozone filter. This charges the surface of the OPC drum with an even electrical load.

2-1 OPC Drum

1
OPC drum ground
5
Name
1. OPC Drum
2. Cleaning Blade
3. Comb electrode
4. Waste toner collecting coil
5. Grid
2
3
Removal of ozone
Laser light is used to create a latent image on the surface of the
OPC drum, and toner is used to develop it. The image is then
transferred on the image transfer belt.
Scrapes off residual toner from the OPC drum.
Scorona system charger for providing a minus charge to the sur-
face of the OPC drum.
Transports the waste toner that has fallen off of the OPC drum to
the waste toner container.
Evenly provides the created electrical load to the OPC drum.
C-8
4
Charge bias
Grid bias
Function
HV1