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.
Patent No.:
Date of Patent:
Jan. 14, 2020
Filed:
Jul. 24, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Masaki Kobayashi, Suntou-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The image forming apparatus determines, based on a determination value calculated by a calculating unit, a light amount of reflection light from a first position on an image bearing member from light amounts of reflection light beams from a second position and a third position on the image bearing member where a patch image is not formed in a state where the patch image is formed at the first position on the image bearing member, or determines the light amount of reflection light from the first position on the image bearing member by detecting the light amount of reflection light from the first position on the image bearing member with a detecting unit in a state where the patch image is not formed at the first position on the image bearing member.