Transfer apparatus and image bearing apparatus using same having

Details Transfer apparatus and image bearing apparatus using same having Transfer apparatus and image bearing apparatus using same having

1989-10-24

1991-04-23

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355271, G03G 1516

Patent

active

050103709

ABSTRACT:
An image transfer apparatus for transferring a toner image onto a transfer material includes an image bearing member for carrying a developed toner image; image transfer bias applying roller for contacting to a backside of the transfer material, for urging it to the image bearing member having the toner image and for applying a transfer bias to transfer the toner image to the transfer material; wherein amounts of charge applied to the transfer material by the transfer bias applying roller during its transfer operation satisfy

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