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. 17, 2022

Filed:

Jul. 19, 2021
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Tec Kabushiki Kaisha, Tokyo, JP;

Inventors:

Kazuhiko Kikuchi, Kanagawa, JP;

Osamu Takagi, Tokyo, JP;

Chie Miyauchi, Kanagawa, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01); G03G 21/14 (2006.01); G03G 21/16 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2017 (2013.01); G03G 15/2028 (2013.01); G03G 15/2032 (2013.01); G03G 15/2064 (2013.01); G03G 15/2039 (2013.01); G03G 21/14 (2013.01); G03G 21/1685 (2013.01); G03G 2215/2038 (2013.01); G03G 2215/2045 (2013.01);
Abstract

An image forming apparatus includes a transfer unit for transferring a toner image onto a sheet, a fixing device for fixing the image, the fixing device including a belt, a pressure element for pressing against the belt, a heating member on the belt including a heat generating element and electrodes on both sides of the heat element in a sheet conveyance direction and connected to the heat element, and an adjustment mechanism for moving one of the heating member and the pressure element in a manner to move the one closer to or away from the other, and a controller for controlling the adjustment mechanism so that a distance between the heating member and the pressure element becomes a first distance during a fixing process and a second distance larger than the first distance during temperature raising of the heating member, which is conducted before the fixing process.


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