Image forming apparatus having transfer electrode

Details Image forming apparatus having transfer electrode Image forming apparatus having transfer electrode

1991-05-29

1992-01-14

Grimley, A. T.

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355271, 355273, 355277, 430126, G03G 1516, G03G 1514

Patent

active

050815016

ABSTRACT:
The present invention provides an image forming apparatus having a shiftable image bearing member; an image forming device for forming an image on the image bearing member; and a transfer device for transferring the image formed on the image bearing member onto a transfer sheet at a transfer station, the transfer device urging the transfer sheet against the image bearing member and having a transfer electrode to which a voltage is applied; and wherein a resistance value between a surface of the transfer electrode facing the image bearing member and a portion of the transfer electrode at which the voltage is applied is greater at an upstream side of a shifting direction of the image bearing member than at a downstream side thereof, on the surface of the transfer electrode, whereby an image can be obtained without any transfer void.

REFERENCES:
patent: 4571052 (1986-02-01), Shirai
patent: 4864367 (1989-09-01), Nakahara et al.
patent: 4875069 (1989-10-01), Takeda et al.

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