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:
Sep. 07, 1999
Filed:
Sep. 16, 1998
Hiroshi Sahara, Susono, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a color image forming apparatus for forming an image by transferring toner images in a superimposed fashion, comprising a plurality of electrophotographic photosensitive members, process means for forming the toner images on the photosensitive members by using color toners, a belt moved along an endless path and used for successively transferring the toner images formed on the photosensitive members, a plurality of rollers for maintaining the belt in a tension condition, and an oscillation motor attached to a drive shaft of a drive roller among the plurality of rollers, whereby transfer deviation in toner multi-transfer processes is prevented.