The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2010
Filed:
Mar. 29, 2007
Ryuta AL, Toride, JP;
Ryuta Al, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
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.