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    • 6. 发明授权
    • Image forming apparatus with heater having bias applying portion setting bias based on sheet width
    • 具有加热器的图像形成装置,其具有基于片材宽度的偏置施加部分设定偏置
    • US06952538B2
    • 2005-10-04
    • US10638420
    • 2003-08-12
    • Shinji HashiguchiSatoru IzawaHiroshi KataokaKoji Nihonyanagi
    • Shinji HashiguchiSatoru IzawaHiroshi KataokaKoji Nihonyanagi
    • G03G21/14G03G15/20
    • G03G15/2064G03G2215/2016G03G2215/2035
    • An image forming apparatus is provided with an image heating apparatus for holding and conveying a recording material bearing an image in a nip between a heating member and a pressurizing member to heat the image on the recording material. The image forming apparatus has a bias applying portion for applying a bias to at least one of the heating member and the pressurizing member and a bias setting portion for setting an amount of the applied bias. In the case that a recording material(s) having a first width is fed and thereafter a recording material is to be fed, the bias setting portion sets the amount of the applied bias based on the number of the recording material(s) having the first width that have been fed and the time from the feeding of the recording material(s) having the first width to the feeding of the recording material having the second width.
    • 图像形成装置设置有图像加热装置,用于保持和传送在加热构件和加压构件之间的辊隙中承载图像的记录材料,以加热记录材料上的图像。 图像形成装置具有用于向加热构件和加压构件中的至少一个施加偏压的偏压施加部和用于设定施加偏压量的偏置设定部。 在馈送具有第一宽度的记录材料并且随后记录材料被馈送的情况下,偏置设置部分基于具有第一宽度的记录材料的数量来设置所施加的偏压量 已经被馈送的第一宽度和从具有第一宽度的记录材料的馈送到具有第二宽度的记录材料的馈送的时间。