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:
Oct. 08, 2002
Filed:
Jun. 12, 2000
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An image formation apparatus comprises photosensitive drums for respectively forming toner images corresponding to specified colors of an original image, an intermediate transfer belt onto which the toner images are transferred from the photosensitive drums in superimposed relation to form a synthetic toner image, and transfer rollers each for pressing the intermediate transfer belt against the associated photosensitive drum. The photosensitive drum disposed more upstream in a direction of conveyance of the intermediate transfer belt has a lower speed. The intermediate transfer belt may be designed to move at a speed higher than those of the photosensitive drums. With this construction, a sag or dip of the intermediate transfer belt between any two adjacent photosensitive drums is eliminated, thereby preventing a color drift of the synthetic toner image.