Electrophotography – Internal machine environment – Particle or contaminant control
Patent
1998-02-24
1999-11-23
Lee, Susan S.Y.
Electrophotography
Internal machine environment
Particle or contaminant control
399129, 430125, 430126, G03G 1516
Patent
active
059915668
ABSTRACT:
An image forming apparatus and method includes a first image-bearing member, a latent image-forming device for forming an electrostatic latent image on the first image-bearing member, developer for developing the electrostatic latent image with a toner to form a toner image, an intermediate transfer member for receiving the toner image by primary transfer and transferring the toner image onto a second image-bearing member by secondary transfer, a charging member for charging a residual toner remaining on the intermediate transfer member after the secondary transfer, and a recovery member for recovering the charged residual toner at a recovery position by voltage application. The intermediate transfer member exhibits a charging characteristic such that it has a surface potential of at most 500 volts as an absolute value at the recovery position. The intermediate transfer member having such a charging characteristic is effective in suppressing an occurrence of electric discharge at the recovery position of the residual toner to provide an excellent cleaning performance.
REFERENCES:
patent: 4903081 (1990-02-01), Takahashi
patent: 5079597 (1992-01-01), Mauer et al.
patent: 5115281 (1992-05-01), Ohtsuka et al.
patent: 5752130 (1998-05-01), Tanaka et al.
patent: 5809373 (1998-09-01), Yoda et al.
Ashibe Tsunenori
Kobayashi Hiroyuki
Kusaba Takashi
Nakazawa Akihiko
Tanaka Atsushi
Canon Kabushiki Kaisha
Lee Susan S.Y.
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