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:
Mar. 02, 2021
Filed:
Mar. 18, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Yuki Kurosu, Nagareyama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A position of a stretch roller, where the stretch roller stretches an intermediate transfer belt upstream of and adjacently to a most upstream primary transfer roller in a rotational direction of the intermediate transfer belt, is apart from a photosensitive drum with respect to a primary transfer surface. Further, the most upstream primary transfer roller is larger in outside diameter than other primary transfer rollers, and the most upstream primary transfer roller has a transfer pressure larger than the transfer pressure of the other primary transfer rollers. This arrangement inhibits the most upstream primary transfer roller from deforming and a defective transfer due to waving of the intermediate transfer belt, while inhibiting an increase in size of an apparatus.