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:
Apr. 23, 2024

Filed:

Feb. 16, 2022
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Junya Takatsu, Tokyo, JP;

Junichi Hirota, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); H02K 1/2753 (2022.01); H02K 3/18 (2006.01); H02P 21/22 (2016.01); H02P 25/03 (2016.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/5008 (2013.01); H02P 21/22 (2016.02); H02P 25/03 (2016.02); H02K 1/2753 (2013.01); H02K 3/18 (2013.01); H02P 27/08 (2013.01);
Abstract

One aspect is an image forming apparatus including a motor that drives a first member, a second member, a movement member that moves between a first position where the first and second members contact and a second position where the first and second members are separated, and a controller that receives an instruction to start a print job for forming an image on a recording medium, and executes an initial operation for determining a phase of a rotor of the motor in a stopping state of the rotor based on current flowing through a coil of the motor by supplying current to the coil in the stopping state in a state where the movement member is located at the first position, to control the current supplied to the coil to rotate the rotor in the stopping state based on the phase determined in the initial operation.


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