Drum Charging - Minolta EP1080 Service Manual

10

DRUM CHARGING

The PC Drum Charge Corona above the Imaging Unit deposits a negative
DC charge evenly across the surface of the PC Drum.
The Corona Unit has a Comb Electrode which minimizes the amount of
ozone produced. The conventional wire type corona unit produces a large
amount of ozone due to corona discharge in radial directions. The comb
electrode type, on the other hand, discharges corona only toward the Grid
Mesh, meaning a reduced amount of ozone is produced.
The Comb Electrode can be cleaned by the user who pulls out to the front
the shaft on which a Cleaning Rollar is mounted.
Comb Electrode
Holder Spring Holder
Grid Mesh
Start Key
Paper loading Edge Detecting
Sensor PC54
PC Drum Charge Corona
Approx. 700msec.
Approx. 200msec.
1139T52MCA
1139C05MAA
M-30