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公开(公告)号：US20220299918A1
公开(公告)日：2022-09-22
申请号：US17830234
申请日：2022-06-01
发明人： Yasuhiro Shimura , Koji Nihonyanagi , Ryota Ogura
摘要： The present invention relates to an image heating apparatus that includes a heater including a plurality of independently controllable heating blocks in a longitudinal direction thereof, each including a first conductor, a second conductor, and a heating element. At least one of electrodes corresponding to the respective heating blocks is disposed in an area where the heating element is located in the longitudinal direction on a second surface of the heater that is opposite to a first surface that comes into contact with an endless belt. An electrical contact is arranged so as to face the second surface of the heater. An overheating occurring in a no-media passage portion when an image formed on a recording material having a small size is heated is suppressed or reduced.
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2.发明申请HEATER, IMAGE HEATING DEVICE WITH THE HEATER AND IMAGE FORMING APPARATUS THEREIN 审中-公开加热器，加热器和图像形成装置的图像加热装置公开(公告)号：US20140169846A1
公开(公告)日：2014-06-19
申请号：US14143007
申请日：2013-12-30
发明人： Yasuhiro Shimura , Koji Nihonyanagi
CPC分类号： G03G15/2053 , G03G15/2042 , H05B1/0241 , H05B3/0019 , H05B3/0095 , H05B3/06 , H05B2203/007 , H05B2203/011 , H05B2203/016
摘要： The heater is capable of improving heat generation uniformity in a sheet feeding area while suppressing the temperature rise of a non-sheet feeding portion. Each of heat generation lines includes a plurality of heat blocks in which a plurality of heat generating resistors are electrically connected in parallel between two conductive members. The heat generation lines are arranged in a lateral direction of the substrate, and the heat blocks are arranged so that the end of the heat block in the heat generation line of a first row does not overlap with the end of the heat block in the heat generation line of a second row in a longitudinal direction of a heater.
摘要翻译： 加热器能够在抑制非片材供给部的温度升高的同时，提高供纸区域的发热均匀性。 每个发热线包括多个热块，其中多个发热电阻器并联电连接在两个导电构件之间。 发热线沿基板的横向排列，并且散热块被布置成使得第一排的发热管线中的热块的端部不与热块的热源端部重叠 在加热器的纵向方向上的第二排的生成线。
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公开(公告)号：US20130195494A1
公开(公告)日：2013-08-01
申请号：US13752742
申请日：2013-01-29
发明人： Jun Asami , Toshiya Kaino , Taisuke Minagawa , Koji Nihonyanagi
IPC分类号： G03G15/20
CPC分类号： G03G15/2078 , G03G15/2039 , G03G15/2042 , G03G15/2053 , G03G2215/2035
摘要： A fixing apparatus includes a film, a heater that contacts the inner face of the film and is capable of changing heat distribution, and a pressure member that forms the nip portion with the heater via the film, the pressure member including a region on which a diameter is increased from a center portion toward an end portion, wherein the fixing apparatus performs heater control so that a ratio of an amount of heat generation at the end portion of the heater to an amount of heat generation at the center portion of the heater is changed based on a temperature of the end portion of the pressure member, during a period at least from when the warm-up of the fixing apparatus is started until the recording material reaches the nip portion.
摘要翻译： 定影装置包括膜，与膜的内表面接触并能够改变热分布的加热器，以及经由膜与加热器形成夹持部的压力构件，压力构件包括： 直径从中心部朝向端部增大，其中定影装置执行加热器控制，使得加热器端部处的发热量与加热器中心部分处的发热量的比率为 至少从定影装置的预热开始到记录材料到达夹持部分的期间，基于压力构件的端部的温度而改变。
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公开(公告)号：US11378902B2
公开(公告)日：2022-07-05
申请号：US16547287
申请日：2019-08-21
发明人： Yasuhiro Shimura , Koji Nihonyanagi , Ryota Ogura
摘要： The present invention relates to an image heating apparatus that includes a heater including a plurality of independently controllable heating blocks in a longitudinal direction thereof, each including a first conductor, a second conductor, and a heating element. At least one of electrodes corresponding to the respective heating blocks is disposed in an area where the heating element is located in the longitudinal direction on a second surface of the heater that is opposite to a first surface that comes into contact with an endless belt. An electrical contact is arranged so as to face the second surface of the heater. An overheating occurring in a no-media passage portion when an image formed on a recording material having a small size is heated is suppressed or reduced.
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公开(公告)号：US08942589B2
公开(公告)日：2015-01-27
申请号：US13752742
申请日：2013-01-29
发明人： Jun Asami , Toshiya Kaino , Taisuke Minagawa , Koji Nihonyanagi
IPC分类号： G03G15/20
CPC分类号： G03G15/2078 , G03G15/2039 , G03G15/2042 , G03G15/2053 , G03G2215/2035
摘要： A fixing apparatus includes a film, a heater that contacts the inner face of the film and is capable of changing heat distribution, and a pressure member that forms the nip portion with the heater via the film, the pressure member including a region on which a diameter is increased from a center portion toward an end portion, wherein the fixing apparatus performs heater control so that a ratio of an amount of heat generation at the end portion of the heater to an amount of heat generation at the center portion of the heater is changed based on a temperature of the end portion of the pressure member, during a period at least from when the warm-up of the fixing apparatus is started until the recording material reaches the nip portion.
摘要翻译： 定影装置包括膜，与膜的内表面接触并能够改变热分布的加热器，以及经由膜与加热器形成夹持部的压力构件，压力构件包括： 直径从中心部朝向端部增大，其中定影装置执行加热器控制，使得加热器端部处的发热量与加热器中心部分处的发热量的比率为 至少从定影装置的预热开始到记录材料到达夹持部分的期间，基于压力构件的端部的温度而改变。
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公开(公告)号：US08755706B2
公开(公告)日：2014-06-17
申请号：US13658621
申请日：2012-10-23
发明人： Taisuke Minagawa , Koji Nihonyanagi , Jun Asami , Toshiya Kaino , Kuniaki Kasuga , Hayato Negishi
IPC分类号： G03G15/20
CPC分类号： G03G15/2017 , G03G15/2042
摘要： An image forming apparatus includes an image forming device, a fixing device, a first fan configured to supply air to a first area of the fixing device, a second fan configured to supply air to a second area of the fixing device, a first temperature detector for detecting a temperature of the first area, a second temperature detector for detecting a temperature of the second area, and a control unit configured to start to operate the first fan and the second fan, wherein, when a displacement amount of a recording material with respect to a conveyance reference is a predetermined amount or larger and when the recording material is displaced toward the first area, the control unit sets a temperature for starting to drive the second fan to be lower than a temperature that is set when the positional displacement amount is less than the predetermined amount.
摘要翻译： 图像形成装置包括图像形成装置，定影装置，构造成将空气供给到定影装置的第一区域的第一风扇，被构造成将空气供给到定影装置的第二区域的第二风扇，第一温度检测器 用于检测第一区域的温度的第二温度检测器，用于检测第二区域的温度的第二温度检测器和被配置为开始操作第一风扇和第二风扇的控制单元，其中，当记录材料的位移量与 相对于输送基准是规定量以上，当记录材料向第一区域移动时，控制单元将开始驱动第二风扇的温度设定为低于位置偏移量时设定的温度 小于预定量。
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公开(公告)号：US11300912B2
公开(公告)日：2022-04-12
申请号：US17365047
申请日：2021-07-01
摘要： An image forming apparatus includes: an image forming unit configured to form an image on a sheet based on original image data; a selection unit configured to determine a non-image region of the sheet to which toner does not attach in a formation of the image by the image forming unit based on the original image data, and select, from the non-image region, a determination region depending on an image defect to be detected; a reading unit configured to read a surface of the sheet; and a control unit configured to obtain read image data by causing the reading unit to read the determination region after the image forming unit has formed the image, and perform detection processing for detecting whether the image defect has occurred based on the read image data.
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公开(公告)号：US20220011706A1
公开(公告)日：2022-01-13
申请号：US17365047
申请日：2021-07-01
摘要： An image forming apparatus includes: an image forming unit configured to form an image on a sheet based on original image data; a selection unit configured to determine a non-image region of the sheet to which toner does not attach in a formation of the image by the image forming unit based on the original image data, and select, from the non-image region, a determination region depending on an image defect to be detected; a reading unit configured to read a surface of the sheet; and a control unit configured to obtain read image data by causing the reading unit to read the determination region after the image forming unit has formed the image, and perform detection processing for detecting whether the image defect has occurred based on the read image data.
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公开(公告)号：US20210302880A1
公开(公告)日：2021-09-30
申请号：US17218432
申请日：2021-03-31
发明人： Koji Nihonyanagi , Masato Sako
IPC分类号： G03G15/20
摘要： In an image forming apparatus, in continuous image formation in which images are continuously formed and fixed on a plurality of recording materials in a fixing portion, with a period from start of the continuous image formation on a first recording material to arrival thereof at the fixing unit being regarded as a first period, and with a period from the arrival of the first recording material at the fixing portion to the end of the continuous image formation being regarded as a second period, a second maximum energizing duty that is set when the control portion supplies power to a plurality of heating elements in the second period is higher than a first maximum energizing duty that is set when the control portion supplies power to the plurality of heating elements in the first period.
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公开(公告)号：US20210034001A1
公开(公告)日：2021-02-04
申请号：US16943200
申请日：2020-07-30
发明人： Koji Nihonyanagi , Masato Sako
摘要： An image forming apparatus, including: a control portion that controls a conveying speed of recording materials when the recording materials pass through a nip portion; wherein the control portion, in a case of continuous sheet passing of the recording materials each having a smaller width than the recording materials each having a maximum width: executes, in a case where a representative value of the number of the recording materials having the smaller width for one operation of the continuous sheet passing is smaller than a predetermined threshold, a first operating mode in which the conveying speed is controlled to a first speed; and executes, in a case where the representative value is the threshold or more, a second operating mode in which the conveying speed is controlled to a second speed lower than the first speed.
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