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:
Dec. 31, 2019
Filed:
Aug. 27, 2018
Konica Minolta, Inc., Chiyoda-ku, Tokyo, JP;
Takeshi Tamada, Toyohashi, JP;
Hiroaki Takatsu, Nishio, JP;
Takahiro Tsujimoto, Toyokawa, JP;
Tianhua Xu, Toyokawa, JP;
KONICA MINOLTA, INC., Chiyoda-Ku, Tokyo, JP;
Abstract
An image forming apparatus includes a heater, a first heater drive circuit which rectifies AC power from an AC power supply and subjects a current to be conducted to the heater to PWM control, and a second heater drive circuit which allows conduction from the AC power to the heater. The image forming apparatus further includes a switching circuit which sets a drive circuit which is to drive the heater to any one of the first heater drive circuit and the second heater drive circuit and a control unit which controls switching between the drive circuits by the switching circuit.