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:
Apr. 25, 2023
Filed:
Jul. 16, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Emi Machii, Shizuoka, JP;
Takafumi Suzuki, Shizuoka, JP;
Seiji Obata, Shizuoka, JP;
Koichi Sekimizu, Shizuoka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A sheet conveyance apparatus includes a conveyance unit configured to convey a sheet, a guide member disposed to define a conveyance path, a light-emitting element, a light-receiving element configured to output a detection signal that changes in accordance with an amount of received light, a first light-passing portion disposed to define an optical path from the light-emitting element to the conveyance path, and a second light-passing portion disposed to define an optical path from the conveyance path to the light-receiving element. The light-receiving element is configured such that the detection signal changes in accordance with whether or not a sheet is present in the conveyance path. Reflectance of each of the first light-passing portion and the second light-passing portion to the light emitted from the light-emitting element is higher than reflectance of the guide member to the light emitted from the light-emitting element.