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:
May. 28, 2024

Filed:

Feb. 28, 2023
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Ryoichi Kawasumi, Ibaraki, JP;

Takehiro Ishidate, Tokyo, JP;

Hiroki Takano, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 21/00 (2006.01); G03G 21/20 (2006.01);
U.S. Cl.
CPC ...
G03G 21/206 (2013.01);
Abstract

An image forming apparatus includes: a photoconductor; an exposure portion that exposes the photoconductor; a fan that generates an airflow for cooling the exposure portion; a duct portion that communicates with the fan; and an elevating duct that relatively moves with respect to the duct portion integrally with the exposure portion, in which the elevating duct includes a rib protruding in a direction away from the exposure portion in a vertical direction, the duct portion includes a sealing member surrounding an opening portion that communicates with the elevating duct, when the elevating duct is located at an exposure position, a surface of the rib intersecting a rotation axis of the photoconductor is in contact with the sealing member, and when the elevating duct is located at a retracted position, a surface of the rib intersecting with the rotation axis of the photoconductor is in contact with the sealing member.


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