Oki OKIPAGE8c Maintenance Manual page 25

(6) Transferring
The transfer roller made of conductive sponge presses the paper
against the surface of the OPC drum so that the paper may be close contact with the surface
of the OPC drum.
This process fits the paper to the surface of the OPC drum by the transfer roller and applies
positive charge (opposite to the charge of the toner) from under the paper.
When a positive high voltage is applied to the transfer roller from the power supply, the
positive charge induced on the transfer roller jumps to the upper surface of the paper at which
the transfer roller touches the paper and attracts the negatively-charged toner from the
surface of the OPC drum onto the surface of the paper.
OPC drum
Paper
Transfer roller
Power
supply unit
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