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:
Aug. 04, 2020
Filed:
Mar. 14, 2019
Applicant:
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Inventor:
Noboru Furuyama, Odawara Kanagawa, JP;
Assignee:
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2017 (2013.01); G03G 15/2039 (2013.01); G03G 15/2053 (2013.01); G03G 15/5004 (2013.01);
Abstract
An image forming apparatus includes a heater to generate heat with AC power for fixing a toner image to a medium and a power supply device to supply the AC power to the heater according to a pattern corresponding to one of at least two different combinations of a control cycle and a resolution in duty ratio. The control cycle corresponds to an integer multiple of a nominal AC power cycle. The duty ratio reflects a number of nominal AC power cycles in the control cycle during which the heater is in an on state.