43967002TH Rev.1
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Oki Data CONFIDENTIAL
2. Theory of Operation
(4) Develop
Toner is attracted by the electrostatic latent image on the drum surface so that the
electrostatic latent image is converted to the toner image.
1. Toner is adhered to the developing roller by the sponge roller.
2. The electrostatic latent image on the OPC drum surface is visualized by toner.
(5) Transfer
Print paper is overlaid on the OPC drum surface and charge is provided by the
transfer roller from the back side of the paper. When a high voltage is applied to the
transfer roller, the charge that is induced on the transfer roller is transferred to the
paper surface at the contacting point between the transfer roller and paper. Thus
the toner is attracted on the paper surface from the OPC drum surface.
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Developer roller
Sponge roller
OPC drum
Charge roller
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Power
supply unit
OPC drum
Transfer roller
Paper
Transport belt
