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. 04, 2018

Filed:

Feb. 28, 2018
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Tetsuhiro Yoshimoto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/20 (2006.01); G03G 21/00 (2006.01); G03G 21/14 (2006.01); G03G 21/16 (2006.01); H01H 47/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/55 (2013.01); G03G 15/20 (2013.01); G03G 15/5004 (2013.01); G03G 15/5016 (2013.01); G03G 21/00 (2013.01); G03G 21/14 (2013.01); G03G 21/16 (2013.01); G03G 21/1633 (2013.01); H01H 47/00 (2013.01);
Abstract

It is determined whether a performing condition for first welding detection is satisfied. If the performing condition for the first welding detection is satisfied, the first welding detection is performed. On the other hand, if the performing condition for the first welding detection is not satisfied, the first welding detection is skipped. The performing condition for the first welding detection is that second welding detection has detected welding of a relay. The first welding detection is performed before image formation is performed. The second welding detection is performed after image formation has ended.


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