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:
Mar. 18, 2008
Filed:
Dec. 22, 2005
Myong-hun Cho, Suwon-si, KR;
Myong-hun Cho, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A fixing device built in an electrophotographic image forming apparatus and a temperature control method for the fixing device are provided. The fixing device comprises a power supplying unit for supplying power to the fixing device; a control variable determination unit for determining control variables corresponding to operating states of the fixing device, wherein the control variables are used to control a temperature of the fixing device; a temperature detection unit for detecting the temperature of the fixing device; and a temperature control unit for controlling the temperature of the fixing device by using the control variables, wherein the temperature control unit comprises a duty ratio adjustment unit for adjusting a duty ratio of the supplied power based on the determined control variables. In addition, the control variable determination unit determines the control variables corresponding to at least one of a plurality of operating states.