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. 26, 2016

Filed:

May. 18, 2015
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Masahiro Makino, Tsukubamirai, JP;

Masami Hano, Abiko, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); G03G 15/16 (2006.01);
U.S. Cl.
CPC ...
G03G 15/1615 (2013.01);
Abstract

An image forming apparatus includes: a belt; a first image forming unit including a first drum; a second image forming unit including a second drum; a contact-and-separation portion; an executing portion; and a controller for rotating the second drum by a predetermined angle so that when a cycle of an operation is to be repeated N times, a position of the second drum contacting the belt in an (N−1)th cycle differs from a position of the second drum contacting the belt in an Nth cycle, the cycle including receiving the image data in a state that the belt and the first and second drums are at rest and in a stand-by state that the image forming apparatus waits for an input of the image data in the first state, executing the image forming operation, and then returning the image forming apparatus to the stand-by state.


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