Image forming device with transfer unit

Details Image forming device with transfer unit Image forming device with transfer unit

1996-11-07

1998-02-10

Pendergrass, Joan H.

Electrophotography

Control of electrophotography process

Control of transfer

399316, G03G 1516

Patent

active

057179808

ABSTRACT:
An image forming device having a transfer unit that transfers the toner image formed on the image carrier onto transfer paper, such that the toner image can be transferred with good results regardless of fluctuations in the environment, by (a) returning to the feedback side of the power source, via a constant voltage element, part of the electric current that flows to (i) the transfer unit, to which a prescribed voltage is applied by the power source, and (ii) the guide member that supports the transfer paper, said electric current flowing to said guide member via said transfer paper, and by (b) controlling the voltage of the power source such that the voltage on the feedback side of the power source will be constant.

REFERENCES:
patent: 4055380 (1977-10-01), Borostyan
patent: 4077709 (1978-03-01), Borostyan et al.

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