Image transferring device for image forming equipment

Details Image transferring device for image forming equipment Image transferring device for image forming equipment

1996-11-20

1999-04-27

Beatty, Robert

Electrophotography

Diagnostics

Document handling

G03G 1516

Patent

active

058972412

ABSTRACT:
An image transferring device incorporated in an image forming apparatus and capable of surely preventing a sheet from wrapping around a photoconductive element. The image transferring device includes a transfer belt contacting an image bearing member to form a nip portion and which is supported by rollers one which is made from insulating material. A contact electrode contacts the inner surface of the belt and is located downstream of the nip for applying a transfer bias to the belt. A power source is connected to the contact electrode. A discharge electrode is located downstream of the contact electrode for dissipating transfer charge on the belt. A controller controls the power source such that a relation: I.sub.1 -I.sub.2=I.sub.out is satisfied, where I.sub.1 is the transfer current, I.sub.2 is the feedback current flowing from the discharge electrode and I.sub.out is constant.

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