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:
Apr. 22, 2003
Filed:
Dec. 08, 1998
Kazunori Hirose, Kawasaki, JP;
Takashi Matsuya, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
Method and apparatus for controlling a temperature of a thermal fixing unit which is for the purpose of maintaining the balance between a fixing rate and the occurrence of wrinkles even if a distance between paper sheets greatly varies within a printer. When image formation is consecutively made onto a plurality of record mediums without stopping an operation of an image forming apparatus, an interval between the record mediums is detected, and a controlled target temperature for a thermal fixing unit is switched and set in accordance with the interval between the record mediums to control a heat source so that the temperature of the thermal fixing unit reaches the controlled target temperature. The image Corming apparatus may include an electrophotographic recording apparatus such as a copying machine, facsimile and laser printer using a toner.