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:
May. 04, 2010
Filed:
Jun. 27, 2006
Jae-hyeuk Jeong, Suwon-si, KR;
Jae-hyeuk Jeong, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A variable tension type belt fusing unit includes a main roller, a pair of belt driving rollers which is disposed near the outer circumferential surface of the main roller and is pressurized towards the main roller, and a fusing belt having a nip portion and a non-tension portion. At least one of the pair of belt driving rollers is independently and temporarily driven to apply or release a tension to the nip portion. In a driving method of the variable tension type belt fusing unit, the tension is applied to the nip portion of the fusing belt when the variable tension type belt fusing unit is prepared for an operation, the fusing belt travels while maintaining the tension during the operation of the variable tension type belt fusing unit, and the tension is released when the operation is completed.