Lexmark 500n manual Details of the print system, Charging process

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Details of the print system

Charging process

In the charging process, the OPC belt is evenly charged by the charger. See “Printer theory of operation” on page 1-14for charger unit location.

The charger unit consists of a charging brush and a discharge roller.

1.The charge brush charges the OPC belt surface to

-Vo(V) potential. The charge on the surface of the OPC belt is then smoothed to an even -Vo(V) by the discharge roller.

2.The charger unit controls the grid to a constant voltage of ZD(V) for even charging.

3.Before charging, the OPC belt surface is -CBV(V).

The charger unit evenly charges the OPC belt surface to -Vo(V) by generating a negative charge.

General information 1-23