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:
Apr. 14, 2006
Applicant:
Tomohiro Tamaoki, Moriya, JP;
Inventor:
Tomohiro Tamaoki, Moriya, JP;
Assignee:
Canon Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus that can maintain the accuracy of temperature control of an object to be heated within a predetermined range and avoid adverse effects of contamination of first temperature detection means. The image forming apparatushas a photosensitive drum, a heater, a thermopile temperature sensor, a non-contact thermistor, and a control circuit. The control circuitcontrols the heaterbased on an output signalin a case where the output signalis output earlier in time than the output signal, and informs of a state of the thermopile temperature sensorin a case where the output signalis output earlier in time than the output signal