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:
Oct. 29, 2019

Filed:

Jan. 31, 2019
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Takayuki Iikura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/043 (2006.01); G03G 15/04 (2006.01); G02B 26/12 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0435 (2013.01); G02B 26/127 (2013.01); G03G 15/04072 (2013.01);
Abstract

An image forming unit includes a first receptor, a light source, a photosensitive member, a rotational polygon mirror, a light receiving unit, an identifier configured to identify a reflection face, and a generator. An information processing apparatus includes a second receptor, a first detector, a second detector, a determiner, a corrector configured to correct image data, and an output unit configured to output corrected image data to the image forming unit. When the first change is newly detected in a predetermined period, the determiner determines, based on a time period from the second timing at which the first change is newly detected to a timing at which the second change is detected and a time period from the first timing to a timing at which the second change is lastly detected before the second timing, whether the first change is a change corresponding to the identified reflection face.


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