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.

Date of Patent:
Dec. 30, 2025

Filed:

Aug. 27, 2024
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Tomohiro Saito, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2006.01); G03G 15/01 (2006.01); G03G 15/06 (2006.01);
U.S. Cl.
CPC ...
G03G 15/065 (2013.01); G03G 15/0194 (2013.01);
Abstract

An image forming apparatus includes an image bearing member, a transfer member, an applying portion, a detecting portion, and a controller. In a case where an adjusting operation is executed from reception of a start signal of image formation to a start of transfer of an image on a first sheet in the transfer portion, the controller controls the applying portion so that a second test bias is higher in absolute value of a voltage than a first test bias and controls the applying portion so that a time in which the first test bias is applied to the transfer portion is set to a first time and so that a time in which the second test bias is applied to the transfer portion is set to a second time longer than the first time.


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