Image forming apparatus comprising contact type charging member

Details Image forming apparatus comprising contact type charging member Image forming apparatus comprising contact type charging member

1996-06-05

1997-09-09

Lee, Shuk

Electrophotography

Image formation

Charging

361225, G03G 1502

Patent

active

056666063

ABSTRACT:
An image forming apparatus includes a image bearing member having a photosensitive layer, a surface protection layer having fluorine resin material; a charging member contactable to the image bearing member to electrically charge the image bearing member, the charging member is capable of being supplied with an oscillation voltage, and wherein a peak-to-peak voltage of the oscillating voltage applied across a gap between a surface of the charging member and the surface of the image bearing member, is not less than twice a charge starting voltage of the image bearing member in the gap and not more than 1600 volt.

REFERENCES:
patent: 4851960 (1989-07-01), Nakamura et al.
patent: 5146280 (1992-09-01), Kisu
patent: 5436701 (1995-07-01), Shomojo et al.
patent: 5475471 (1995-12-01), Kisu et al.
patent: 5485248 (1996-01-01), Yano et al.

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