Cleaning device with electrically biased conveying members for c

Details Cleaning device with electrically biased conveying members for c Cleaning device with electrically biased conveying members for c

1999-10-27

2000-12-05

Pendegrass, Joan

Electrophotography

Cleaning of imaging surface

Having handling of removed material

399359, G03G 2110

Patent

active

06157807&

ABSTRACT:
A cleaning device comprises: a first conveying member disposed further upstream in the rotating direction of a photoconductor drum than a cleaning blade, and constructed to rotate in non-contacting relationship to the photoconductor drum to convey residual toner that was removed by the cleaning blade; a second conveying member disposed parallel to the first conveying member and constructed to rotate in non-contacting relationship to the first conveying member; a first bias power supply for applying to the first conveying member a bias voltage having a polarity opposite to the proper polarity of the developer applied for development; and a second bias power supply for applying to the second conveying member a bias voltage having the same polarity as the proper polarity.

REFERENCES:
patent: 4588285 (1986-05-01), Tagoku
patent: 4601569 (1986-07-01), Garris
patent: 5416572 (1995-05-01), Kolb et al.

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