Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2007-03-29
2010-02-23
Gray, David M (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
Reexamination Certificate
active
07668478
ABSTRACT:
An image forming apparatus has: an image bearing member which bears a toner image; a transfer member which comes into pressure contact with the image bearing member and transfers the toner image on the image bearing member onto a recording material; a first cleaning member which electrostatically collects the toner on the transfer member; and a second cleaning member which electrostatically collects the toner on the first cleaning member, wherein when a ratio of an amount of toner which is adsorbed by the first cleaning member to an amount of toner on the transfer member is assumed to be α(%) and a ratio of an amount of toner which is adsorbed by the second cleaning member to an amount of toner on the first cleaning member is assumed to be β(%), α>90(%), β>90(%), and α≦β.
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Chinese Office Action dated Aug. 22, 2008 in Chinese Application No. 200710096120.6, and English-language translation thereof.
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Gray David M
Lactaoen Billy J
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