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    • 1. 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。
    • 6. 发明授权
    • Image heating apparatus and image forming apparatus
    • 图像加热装置和图像形成装置
    • US06862416B2
    • 2005-03-01
    • US10456795
    • 2003-06-09
    • Shinji HashiguchiHiroshi Kataoka
    • Shinji HashiguchiHiroshi Kataoka
    • G03G15/20
    • G03G15/2042G03G2215/2035
    • An image heating apparatus which heats an image on a recording material by holding and conveying the image-borne recording material at a nip between heating and pressure members has a sequence to set a heating temperature of the apparatus to be lower than an ordinary set temperature when, after the recording material of a width narrower than a predetermined width was passed, the recording material of a width wider than that width is passed. The set heating temperature when the wide-width recording material is passed after the narrow-width recording material was passed is controlled according to the number of the passed narrow-width recording materials and an elapsed time from the passing of the narrow-width recording material to the passing of the wide-width recording material, whereby hot off-set occurring when the large size recording material is passed after the small size recording material was passed is prevented without deteriorating fixability.
    • 通过在加热和加压构件之间的夹持处保持和输送图像传送记录材料来加热记录材料上的图像的图像加热装置具有将装置的加热温度设定为低于普通设定温度的顺序, 在通过宽度比预定宽度窄的记录材料之后,通过宽于该宽度的宽度的记录材料。 根据通过的窄幅记录材料的数量和通过窄幅记录材料的经过时间来控制在窄幅记录材料通过之后通过宽幅记录材料时的设定加热温度 在通过宽幅记录材料之后,防止在小尺寸记录材料通过之后通过大尺寸记录材料时发生的热偏移,而不会降低定影性。