Oki OF5600, Service Manual

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Print Operation Description B - 12 OKIFAX 5300/5600
Service Manual, P/N 59278301
5) Transfer
The transfer roller is composed of conductive sponge material and is designed to make the
image drum surface and the paper closely into contact.
Paper is placed over the image drum surface, and a positive charge, opposite in polarity to
the toner, is applied to the paper from its reverse side.
The application of a high positive voltage (+1 KVDC) from the Power Supply Unit (1VP/2VP
board) to the transfer roller causes the positive charge induced on the transfer roller surface
to be transferred to the paper at the contact between the transfer roller and the paper. As
a result, toner charged negative that is attracted to the image drum surface is transferred to
the upper side of the paper by the positive charge on the lower side of the paper.
Transfer roller
Paper
EP drum
Power
supply unit