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:
Sep. 17, 1996
Filed:
Jun. 29, 1994
Nobuyuki Tanaka, Kawasaki, JP;
Hironori Kanno, Inagi, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention relates to a method and device each for controlling the temperature of a thermal fixing machine where a toner image is fixed on a recording medium in a printer, a facsimile apparatus, or a copying machine using electrophotograpic technique. The object is to control the temperature, of a thermal fixing machine with high accuracy by increasing substantially a resolution of an A/D converter without increasing a device manufacturing cost, and reducing an effect on a temperature detection value due to noises. The system includes temperature detecting device for detecting the temperature of a thermal fixing machine as a digital value, sampling device for sampling plural temperature detection values detected with said temperature detecting device, and control device for subjecting a heater to an on/off control based on plural temperature detection values sampled by the sampling device.