Bias cleaning system and electrostatic printing apparatus therew

Details Bias cleaning system and electrostatic printing apparatus therew Bias cleaning system and electrostatic printing apparatus therew

1994-06-09

1997-02-04

Ramirez, Nestor R.

Electrophotography

Control of electrophotography process

Control of cleaning

399354, G03G 2100

Patent

active

056004052

ABSTRACT:
A bias cleaning system has an electrically conductive brush roller for collecting toner which has to adhered a transfer belt by scrubbing the toner off the transfer belt under a condition in which a direct current voltage of the opposite polarity to the charge of the toner is applied to the brush roller. A corona charger is also provided for decreasing the amount of charge on the toner on the transfer belt in a region of the belt up-stream of the electrically conductive brush roller in the moving direction of the transfer belt.

REFERENCES:
patent: 4533236 (1985-08-01), Garsin
patent: 4615613 (1986-10-01), Garsin
patent: 4660962 (1987-04-01), Maekawa et al.
patent: 4786943 (1988-11-01), Fukae et al.
patent: 5107285 (1992-04-01), Hamada et al.
patent: 5233398 (1993-08-01), Nimura et al.
patent: 5237377 (1993-08-01), Harada et al.
patent: 5291253 (1994-03-01), Kumasaka et al.

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