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. 17, 2020
Filed:
Dec. 13, 2018
Kyocera Document Solutions Inc., Osaka, JP;
Junta Maenishi, Osaka, JP;
Kyocera Document Solutions Inc., Osaka, JP;
Abstract
An image forming apparatus includes a width-information acquisition unit, an environmental-condition detecting unit, a heat roller, an end-portion-temperature-detecting unit, a first heater, a second heater, a first control unit, a first control unit, a correction-value derivation unit, an extracting unit, and a second control unit. The first heater heats a center portion of the heat roller. The second heater heats the end portion of the heat roller. The first control unit controls electric power supplied to the first heater with a first duty ratio. The correction-value derivation unit derives a correction value for the temperature condition based on an environmental condition. The extracting unit reflects the correction value for the temperature condition to extract a second duty ratio from among a plurality of second duty ratios. The second control unit controls the electric power supplied to the second heater with the data of the extracted second duty ratio.