Invention Grant
US07881630B2 Temperature control device, temperature control method, fixing device, image forming apparatus, temperature control program, computer-readable recording medium, and computer data signal
有权
温度控制装置，温度控制方法，定影装置，图像形成装置，温度控制程序，计算机可读记录介质和计算机数据信号
- Patent Title: Temperature control device, temperature control method, fixing device, image forming apparatus, temperature control program, computer-readable recording medium, and computer data signal
- Patent Title (中): 温度控制装置，温度控制方法，定影装置，图像形成装置，温度控制程序，计算机可读记录介质和计算机数据信号
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Application No.: US11603250Application Date: 2006-11-22
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Publication No.: US07881630B2Publication Date: 2011-02-01
- Inventor: Tetsunori Mitsuoka , Atsushi Ide
- Applicant: Tetsunori Mitsuoka , Atsushi Ide
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Nixon & Vanderhye, PC
- Priority: JP2005-341144 20051125; JP2006-299511 20061102
- Main IPC: G03G15/20
- IPC: G03G15/20
Abstract:
The present invention carries out temperature detection and temperature control accurately in a temperature control device using a noncontact-type temperature detecting section. The temperature control device obtains the surface temperature of a fixing roller by using a temperature correspondence table in which correspondences between output voltage values of a main NTC thermistor which detects heat generated by infrared radiation from the fixing roller and the surface temperatures of the fixing roller are shown for respective output voltage values of a compensation NTC thermistor. Here, the output voltage values of the main NTC thermistor and the output voltage values of the compensation NTC thermistor are set in the temperature correspondence table so that an interval between adjacent values of the compensation temperatures corresponding to the output voltage values of the compensation NTC thermistor is smaller than an interval between adjacent values of the surface temperatures of the fixing roller which temperatures correspond to the output values of the main NTC thermistor.
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