Method of using an image forming apparatus

Details Method of using an image forming apparatus Method of using an image forming apparatus

1999-06-22

2000-02-29

Lee, S.

Electrophotography

Image formation

Development

399162, 399164, 399267, G03G 1509, G03G 1500

Patent

active

060320141

ABSTRACT:
A plurality of electrostatic images are formed on a moving tensioned belt formed with an electrically conductive base having a non-conductive image-carrying surface layer. The images are developed by passing the belt through toner development stations, each of which includes a development unit including a magnetic roller and a backing member, in opposed position to the magnetic roller, over which the belt passes. Under non-ideal conditions, the image quality in terms of image density and uniformity of image density and rendition of sharp image transitions, is substantially improved by applying an alternating electrical field between the magnetic roller and the belt, with a peak-to-peak voltage greater than 800 volts.

REFERENCES:
patent: 4068622 (1978-01-01), Vola
patent: 4433041 (1984-02-01), Yamashita
patent: 5168318 (1992-12-01), Haneda et al.
patent: 5204696 (1993-04-01), Schmidlin et al.
patent: 5314774 (1994-05-01), Camis
patent: 5652648 (1997-07-01), Behe et al.
patent: 5832350 (1998-11-01), Kumasaka et al.
Patent Abstracts of Japan, Vol. 010, no. 009 (P-420), 14 Jan. 1986 & JP 60-164778 A (Matsushita Denki Sangyo KK), 27 Aug. 1985 *Abstract*.

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