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    • 6. 发明专利
    • Fixing device and image forming apparatus
    • 固定装置和图像形成装置
    • JP2012042698A
    • 2012-03-01
    • JP2010183627
    • 2010-08-19
    • Sharp Corpシャープ株式会社
    • MAEDA TOSHIHIRO
    • G03G15/20
    • G03G15/201
    • PROBLEM TO BE SOLVED: To secure a favorable fixing property by appropriately controlling a light output during heating of toner when heating and melting an unfixed toner by applying light thereto.SOLUTION: A fixing device 40 includes a laser light source 105 from which light irradiates an unfixed toner image formed on a recording sheet 100 conveyed by a recording sheet conveyance device 101, and the light from the laser light source 105 melts the toner to fix the toner image to the recording sheet 100. Assuming that the conveyance speed of the recording sheet 100 is defined as p, the length of a light irradiation region in the conveyance direction of the recording sheet is defined as q, a time when the toner on the unfixed image receives the light during the conveyance is defined as r, and an energy per unit area received by the toner on the unfixed image is defined as J (J=light output per unit area×time r), the light output of the laser light source 105 is controlled such that an energy at a prescribed time r1 from starting the time r, is different from an energy at a time r2 till finishing the time r after the lapse of the time r1.
    • 要解决的问题:通过在通过施加光来加热和熔化未定影的调色剂时,通过适当地控制调色剂加热期间的光输出来确保有利的定影性。 解决方案:定影装置40包括激光源105,激光源105照射由记录纸输送装置101输送的记录纸100上形成的未定影调色剂图像,并且来自激光光源105的光熔化调色剂 将调色剂图像固定到记录片材100.假设记录片材100的输送速度被定义为p,记录片材的传送方向上的光照射区域的长度被定义为q, 在传送过程中接收到未定影图像上的调色剂定义为r,将未定影图像上的调色剂接收的每单位​​面积的能量定义为J(J =单位面积的光输出×时间r),光输出 控制激光光源105的控制,使得从时间r开始的规定时间r1的能量与经过时间r1之后的时刻r2的时间r完全不同。 版权所有(C)2012,JPO&INPIT