Xerox Phaser 3100MFP Service Manual page 208

General Procedures and Information
Charge
Figure 3
The OPC (Organic Photoconductor) drum [A] used in this machine is small in diameter. This al-
lows a very compact design.
A charge roller [B] charges the photoconductor. The charge roller has the advantage of not gen-
erating ozone. A large negative voltage is applied from the Power Supply Unit board to the charge
roller. This charge roller gives the OPC drum surface a negative charge.
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