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. 01, 2020
Filed:
Sep. 13, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Toshiyuki Yamada, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member, a transfer member, a voltage source, a sensor, an acquiring portion, an information storing portion, and a controller configured to adjust the voltage applied to the transfer member. During continuous image formation for continuously forming images on a plurality of recording materials, a detection result of the sensor is corrected on the basis of the detection result of the sensor in a detection period in which a current recording material passes through a transfer portion, an index value relating to a toner image transferred onto a detection region passing through the transfer portion in the detecting period, and correction information, and then on the basis of the corrected value of the detection result, the controller controls the voltage applied to the transfer member for a subsequent recording material passing through the transfer portion.