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:
Nov. 12, 2019
Filed:
Sep. 26, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Toru Sakano, Naka-gun, JP;
Hiroki Kasama, Atsugi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a transfer unit to transfer a toner image onto a sheet, a fusing unit, a discharging unit to discharge the sheet passed through the fusing unit, a guide member having a through-hole at a conveying surface and provided downstream of the fusing unit and upstream of the discharging unit in a conveying direction of the sheet, and a Helmholtz resonator. The Helmholtz resonator includes a cavity portion and communicating portions through which the cavity portion is in communication with an outside area. The Helmholtz resonator and a conveying path of the sheet guided by the guide member are connected through the through-hole. The Helmholtz resonator is disposed on a downstream side with respect to the fusing unit and on an upstream side with respect to the discharging unit in the conveying direction of the sheet, and the communicating portion is disposed facing the guide member.