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:
May. 16, 2000
Filed:
Jan. 28, 1999
Shin Honda, Saitama, JP;
Kouji Hamabe, Saitama, JP;
Ryouichi Tsuruoka, Saitama, JP;
Norio Ogawahara, Saitama, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The image forming apparatus according to the present invention forms a high quality color image with multiple colors of toner in accordance with an input signal. An electrostatic latent image is formed on an image carrier in accordance with the image signal. A developing bias is applied to the image carrier to form a toner image of the latent image for multiple toner colors. To transfer the toner image to an intermediate transfer belt, a rotatable transfer roller is positioned opposite the image carrier and across the transfer belt for attracting the transfer belt toward the image carrier at a transferring position. To reduce the frictional force between the image carrier and the transfer belt, which causes color deviation when multiple toner images are transferred to the intermediate transfer belt, a toner is placed on the image carrier in front of a leading end of a first toner image formed on the image carrier. The toner is applied to the transfer belt when the image carrier is in contact with the transfer belt and thus reduces the frictional force causing color deviation.