Electrophotography – Image formation – Combined or plural functions by single component
Reexamination Certificate
2006-07-24
2009-12-22
Gray, David M (Department: 2852)
Electrophotography
Image formation
Combined or plural functions by single component
C399S175000
Reexamination Certificate
active
07636532
ABSTRACT:
A charging device that switches and executes a first mode which brings a magnetic brush into contact with a photosensitive member to charge a surface of the photosensitive member and a second mode which collects a two-component developing agent including a toner and a carrier, which remains on the surface of the photosensitive member. The charging device includes a magnetic brush carrying roller, a toner collecting roller, a toner removing member, and a regulating member. The toner collecting roller is located further on a downstream side than the regulating member and further on an upstream side than a contact position of the magnetic brush and the photosensitive member in a moving direction of a roller surface of the magnetic brush carrying roller.
REFERENCES:
patent: 5003354 (1991-03-01), Takamiya et al.
patent: 5296905 (1994-03-01), Yousey et al.
patent: 6381431 (2002-04-01), Kinoshita et al.
patent: 2006/0072943 (2006-04-01), Suzuki et al.
patent: 2001-051480 (2001-02-01), None
Gray David M
Kabushiki Kaisha Toshiba
Lactaoen Billy J
Toshiba Tec Kabushiki Kaisha
Turocy & Watson LLP
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