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:
Jul. 13, 2021

Filed:

Jan. 07, 2020
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Hiroyuki Takahashi, Abiko, JP;

Naoto Tokuma, Kashiwa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G01J 3/42 (2006.01); G01J 3/50 (2006.01); H04N 1/00 (2006.01); G03G 21/16 (2006.01);
U.S. Cl.
CPC ...
G03G 15/5062 (2013.01); G01J 3/42 (2013.01); G01J 3/50 (2013.01); G03G 15/5025 (2013.01); G03G 21/1647 (2013.01); H04N 1/00018 (2013.01); H04N 1/00023 (2013.01); G01J 2003/425 (2013.01); G03G 2215/0158 (2013.01);
Abstract

A measuring device a measurement unit configured to measure an image on a sheet, the measurement unit including a light emitting portion configured to illuminate the sheet with light, and a detecting portion configured to detect light reflected by the sheet; a supporting unit supporting the measurement unit; and a driving unit configured to move the measurement unit supported by the supporting unit in a scanning direction. A size, in the scanning direction, of a detectable range of the detecting portion in which the detecting portion is capable of detecting the reflected light from the sheet is larger than a size, in a sub-scanning direction perpendicular to the scanning direction and a normal direction of a surface of the sheet, of the detectable range of the detecting portion.


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