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    • 3. 发明授权
    • Fixing temperature control device
    • 定影温度控制装置
    • US5600406A
    • 1997-02-04
    • US305316
    • 1994-09-15
    • Yukihiro AikawaSatoshi IshiiHiroyuki SadamoriTsutomu SugayaJunichi Hirobe
    • Yukihiro AikawaSatoshi IshiiHiroyuki SadamoriTsutomu SugayaJunichi Hirobe
    • G03G15/20
    • G03G15/2039G03G15/205
    • A fixing temperature control device according to the present invention is applied to a copying machine. A control section has a warm-up control mode and a normal control mode. In the warm-up control mode, energization to a heater is started in response to the start of copying, while being stopped at the time point where a temperature detected by a heat roller temperature detecting sensor reaches a first off temperature. In the normal control mode, on-off control of the energization to the heater is carried out utilizing a predetermined control temperature as a target subsequently to the termination of the warm-up control mode. The predetermined control temperature is corrected by adding a prescribed correction amount to a reference control temperature. It is preferable that the required correction amount includes i) an initial correction amount added in the early stages of processing in the normal control mode, ii) a correction amount at the time of passing paper sheets added when paper sheets pass between a heat roller and a pressure roller in a fixing device, and iii) an environmental correction amount added depending on an environmental temperature.
    • 根据本发明的定影温度控制装置应用于复印机。 控制部分具有预热控制模式和正常控制模式。 在预热控制模式中,响应于复印开始,在由加热辊温度检测传感器检测到的温度达到第一关闭温度的时刻停止,开始向加热器通电。 在正常控制模式中,在预热控制模式结束之后,利用预定的控制温度作为目标,执行对加热器通电的开关控制。 通过将规定的校正量加到参考控制温度来校正预定的控制温度。 优选所需的校正量包括i)在正常控制模式的早期处理中添加的初始校正量,ii)当纸张在加热辊和加热辊之间通过时加入纸张时的校正量 在定影装置中的加压辊,以及iii)根据环境温度添加的环境校正量。