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    • 21. 发明申请
    • IMAGE HEATING APPARATUS AND PRESSURE ROLLER USED FOR IMAGE HEATING APPARATUS
    • 用于图像加热装置的图像加热装置和压力滚子
    • US20110237413A1
    • 2011-09-29
    • US13154600
    • 2011-06-07
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • F28F5/02
    • G03G15/206G03G2215/2035
    • A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity λf in the longitudinal direction in a range of λf≧500 W/(m·k) being dispersed in not less than 5 vol. % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity λy in the longitudinal direction perpendicular to a recording material conveyance direction being λy≧2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity λ in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included and the solid rubber elastic layer is formed on an outer periphery of the core metal and the elastic layer containing the filler is formed on the outer periphery of the solid rubber elastic layer. As a result, a pressure roller which can suppress temperature rise in a region, where recording material does not pass, stabilizes conveyability, provides high endurance, provides high thermal conductivity and low hardness is provided.
    • 形成用于与加热构件接触以夹持和传送和加热记录材料的压区的压辊包括:芯金属和含有填料的弹性层,所述弹性层包含长度不小于0.05的导热填料的填料 mm且不大于1mm,并且在λf≥500W/(m·k)的范围内的长度方向的热导率λf分散在5体积%以上。 %且不大于40体积%,并且包含在垂直于记录材料输送方向的纵向方向上提供热导率λy的填料的弹性层为λy≥2.5W/(m·k),填料的ASKER-C硬度为 不超过60度,其中包括厚度方向上的热导率λ的固体橡胶弹性层不小于0.16W /(m·k)且不大于0.40W /(m·k),并且固体橡胶 在芯金属的外周形成弹性层,在固体橡胶弹性层的外周形成含有填料的弹性层。 结果,可以抑制记录材料不通过的区域中的温度升高的压力辊稳定输送性,提供高耐久性,提供高导热性和低硬度。
    • 23. 发明申请
    • IMAGE HEATING APPARATUS AND PRESSURE ROLLER USED FOR IMAGE HEATING APPARATUS
    • 用于图像加热装置的图像加热装置和压力滚子
    • US20090003902A1
    • 2009-01-01
    • US12145104
    • 2008-06-24
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • G03G15/20
    • G03G15/206G03G2215/2035
    • A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity λf in the longitudinal direction in a range of λf≧500 W/(m·k) being dispersed in not less than 5 vol % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity λy in the longitudinal direction perpendicular to a recording material conveyance direction being λy≧2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity λ in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included and the solid rubber elastic layer is formed on an outer periphery of the core metal and the elastic layer containing the filler is formed on the outer periphery of the solid rubber elastic layer. As a result, a pressure roller which can suppress temperature rise in a region, where recording material does not pass, stabilizes conveyability, provides high endurance, provides high thermal conductivity and low hardness is provided.
    • 形成用于与加热构件接触以夹持和传送和加热记录材料的压区的压辊包括:芯金属和含有填料的弹性层,所述弹性层包含长度不小于0.05的导热填料的填料 mm且不大于1mm,并且在长度方向上的热导率羔羊在范围≥500W/(mk)的范围内分散在不少于5vol%且不大于40vol%的范围内,并且含有 在与记录材料传送方向垂直的纵向方向上提供热导率的填料的填料的平均长度= 2.5W /(mk)和填料的ASKER-C硬度不超过60度,其中具有热的固体橡胶弹性层 厚度方向的导电率λ不小于0.16W /(mk)且不大于0.40W /(mk),并且固体橡胶弹性层形成在 在固体橡胶弹性层的外周形成有芯金属和含有填料的弹性层。 结果,可以抑制记录材料不通过的区域中的温度升高的压力辊稳定输送性,提供高耐久性,提供高导热性和低硬度。
    • 24. 发明授权
    • Image forming apparatus with variable convey speed control between transfer device and fixing device
    • 图像形成装置,在传送装置和定影装置之间具有可变的传送速度控制
    • US07426353B1
    • 2008-09-16
    • US11559603
    • 2006-11-14
    • Hiroyuki Sakakibara
    • Hiroyuki Sakakibara
    • G03G15/00G03G15/20
    • G03G15/235
    • In a construction for forming images on the both surfaces of a sheet, a speed controlling device for effecting the conveyance control of the sheet between a transfer device and a fixing device controls, when the image is to be formed on a first surface, the sheet conveying speed between the transfer device and the fixing device on the basis of loop detection by a loop detecting sensor provided between the transfer device and the fixing device so that a loop formed in the sheet may be maintained within a predetermined range. Also, when the image is to be formed on a second surface, the speed controlling device controls the sheet conveying speed between the transfer device and the fixing device on the basis of the average sheet conveying speed between the transfer device and the fixing device when the image has been formed on the first surface.
    • 在用于在纸张的两个表面上形成图像的结构中,用于在转印装置和定影装置之间进行纸张的输送控制的速度控制装置控制当在第一表面上形成图像时,纸张 基于通过设置在传送装置和定影装置之间的环路检测传感器的环路检测,传送装置和定影装置之间的传送速度,使得形成在片材中的环路可以保持在预定范围内。 此外,当在第二表面上形成图像时,速度控制装置基于转印装置和定影装置之间的平均纸张输送速度来控制转印装置和定影装置之间的纸张输送速度,当 图像已经形成在第一个表面上。
    • 26. 发明授权
    • Image forming apparatus with heater
    • 带加热器的图像形成装置
    • US08693910B2
    • 2014-04-08
    • US13289615
    • 2011-11-04
    • Yuko SekiharaHiroaki SakaiHiroyuki Sakakibara
    • Yuko SekiharaHiroaki SakaiHiroyuki Sakakibara
    • G03G15/20
    • G03G15/205G03G2215/2035
    • An image forming apparatus includes an image forming unit, a fixing unit, and a power control unit. The image forming unit forms an unfixed image on a recording material. The fixing unit includes an endless belt, a heater held in contact with the endless belt, a pressurization roller to form a fixing nip portion for pinching and conveying the recording material together with the heater via the endless belt, and a pressure changing mechanism to effect switching between a pressurization state and a pressure release state. The power control unit controls power to the heater. In response to transitioning from the pressure release state to the pressurization state, the power control unit starts power to the heater during a transition period before the pressurization state is attained and controls power to the heater such that a heater temperature does not exceed a predetermined upper limit temperature during the transition period.
    • 图像形成装置包括图像形成单元,定影单元和电力控制单元。 图像形成单元在记录材料上形成未定影图像。 固定单元包括环形带,与环形带接触的加热器,加压辊,用于形成定影夹持部,用于通过环形带与加热器一起夹持和传送记录材料;以及压力改变机构, 在加压状态和压力释放状态之间切换。 电源控制单元控制加热器的电源。 响应于从压力释放状态转换到加压状态,功率控制单元在达到加压状态之前的过渡期间开始向加热器供电,并且控制加热器的电力,使得加热器温度不超过预定的上限 在过渡期间限制温度。
    • 30. 发明申请
    • IMAGE HEATING APPARATUS AND HEATER USED IN THE APPARATUS
    • 图像加热装置和装置中使用的加热器
    • US20120308280A1
    • 2012-12-06
    • US13484978
    • 2012-05-31
    • Takaaki TsuruyaHiroyuki Sakakibara
    • Takaaki TsuruyaHiroyuki Sakakibara
    • G03G15/20
    • G03G15/2085G03G15/2028G03G15/2042
    • An image heating apparatus includes: an endless belt; a heater, contacted to a surface of the endless belt, provided so that a longitudinal direction thereof is parallel to a generating line direction of the endless belt; and a pressing member for forming a nip together with the endless belt. The heater includes: an elongated substrate; a first heat generating line, provided on the substrate along a longitudinal direction of the substrate, including first heat generating resistors having a negative temperature coefficient of resistance and being electrically connected in series; and a second heat generating line, provided on the substrate along the longitudinal direction of the substrate, electrically connected to the first heat generating line in parallel. The second heat generating line includes a plurality of second heat generating resistors having the negative temperature coefficient of resistance and being electrically connected in series.
    • 图像加热装置包括:环形带; 与环形带的表面接触的加热器,其设置成使得其长度方向平行于环形带的发电线方向; 以及与环形带一起形成辊隙的按压部件。 加热器包括:细长基板; 第一发热线,沿着基板的长度方向在基板上设置,包括具有负的温度系数的串联的第一发热电阻器, 以及沿着基板的长度方向设置在基板上的第二发热线,并联地与第一发热线电连接。 第二发热管线包括多个第二发热电阻器,其具有负的温度系数电阻并串联电连接。