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:
Mar. 02, 2021
Filed:
Feb. 05, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Toshiaki Takeuchi, Susono, JP;
Takahito Ueno, Mishima, JP;
Yuuki Nakamura, Mishima, JP;
Kensuke Suzuki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A technique enabling downsizing of an image forming apparatus is provided. A cleaning unitattachable to and detachable from an apparatus main body of an image forming apparatusthat forms an image on a recording materialis provided, with this cleaning unitincluding: a photosensitive drum; and a cleaning frame bodythat supports the photosensitive drumand that includes an openingthrough which laser lightfor exposing the photosensitive drumcan pass, wherein the openingis configured such that a width of the openingin a scanning direction in an irradiation range of the light for exposing the photosensitive drumbecomes greater toward a side of the photosensitive drumfrom a side of a light source of light for exposing the photosensitive drum