Developing device having a bias-controlled toner discharging mem

Details Developing device having a bias-controlled toner discharging mem Developing device having a bias-controlled toner discharging mem

1996-08-21

1998-07-14

Ramirez, Nestor R.

Electrophotography

Control of electrophotography process

Control of developing

399284, G03G 1506

Patent

active

057818274

ABSTRACT:
A toner discharging member is in contact with a developing sleeve at a position downstream to a developing region at which the developing sleeve (developer carrying member) confronts an electrostatic latent image carrier, extra toner returning to a toner supply region after the development is brought into contact with the discharging member and moves between the discharging member and the developing sleeve, a discharging bias voltage is applied to the toner discharging member, and the discharging bias voltage thus applied is controlled based on a toner charged state, an adhesion state of toner onto the electrostatic latent image carrier, a current flowing through a toner discharging member and others.

REFERENCES:
patent: 4745429 (1988-05-01), Mukai et al.
patent: 5473417 (1995-12-01), Hirano
patent: 5568236 (1996-10-01), Toda et al.
patent: 5592265 (1997-01-01), Sakuraba et al.
patent: 5600419 (1997-02-01), Sakuraba et al.

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