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:
Nov. 24, 2020
Filed:
Oct. 22, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Yusaku Iwasawa, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an intermediate transfer member that contacts an image bearing member to form a primary transfer portion, contacts a secondary transfer member to form a secondary transfer portion, and contacts a charging member that can receive a voltage from a charging power source, to form a charging portion. A toner image borne on the image bearing member is primarily transferred to the intermediate transfer member and secondarily transferred to a transfer material. If toner remains on the intermediate transfer member, the charging member electrically charges the remaining toner. If driving of the intermediate transfer member causes toner to drop onto the intermediate transfer member from the charging member, The timing at which to start image formation is controlled to prevent the dropped toner from moving to a transfer material conveyed to the secondary transfer portion.