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:
Nov. 13, 2012
Filed:
Sep. 15, 2009
Daisuke Miyagawa, Mishima, JP;
Daisuke Miyagawa, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus prevents the occurrence of the combinations of output wave numbers which are ineffective to suppress flicker in a case where a set heater temperature is significantly reduced. If the set temperature is significantly reduced from 200° C. to 130° C., for example, so that the reduced temperature does not require current to be applied to a ceramic heater, which can occur at the time of starting reverse conveyance of the recording sheet in the double-faced printing mode, temperature control is temporarily suspended and the output wave number of power controlled by a controller is varied to 0 waves based on the previously set combinations of 12, 10, 4 and 0 waves, for example, if the output wave number is varied from 12.