Developing device and electrophotographic apparatus using...

Details Developing device and electrophotographic apparatus using... Developing device and electrophotographic apparatus using...

2005-09-23

2009-08-11

Brase, Sandra L (Department: 2852)

Electrophotography

Image formation

Development

C430S111100, C430S111300

Reexamination Certificate

active

07574164

ABSTRACT:
An electrophotographic apparatus includes: a photoconductor; and two developing rollers facing the photoconductor. A developer fed out from between the two developing rollers is supplied to the photoconductor by the two developing rollers to form a toner image on the photoconductor. The developer includes a carrier having a volume-average particle size smaller than 70 μm and a volume resistivity not lower than 106Ω·cm. A volume ratio of the carrier in a facing portion between the photoconductor and the developing rollers is not lower than 30% and not higher than 46%.

REFERENCES:
patent: 4873551 (1989-10-01), Tajima et al.
patent: 5116711 (1992-05-01), Kobayashi et al.
patent: 5565291 (1996-10-01), Mayama et al.
patent: 5885742 (1999-03-01), Okado et al.
patent: 5923933 (1999-07-01), Anzai et al.
patent: 6500595 (2002-12-01), Mochizuki et al.
patent: 6813462 (2004-11-01), Mitsuya et al.
patent: 6993274 (2006-01-01), Hirobe
patent: 63-225262 (1988-09-01), None
patent: 5-61271 (1993-03-01), None
patent: 7-98521 (1995-04-01), None
patent: 07-062779 (1995-07-01), None
patent: 7-62779 (1995-07-01), None
patent: 10-232562 (1998-09-01), None
patent: 2001-312103 (2001-11-01), None
patent: 2002-123043 (2002-04-01), None
patent: 3418604 (2002-04-01), None
patent: 2004-069807 (2004-03-01), None
patent: 2004-151358 (2004-05-01), None
Japanese Office Action dated Apr. 14, 2009 with English Translation.

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