公开(公告)号：US09618888B2

公开(公告)日：2017-04-11

申请号：US15040691

申请日：2016-02-10

申请人： Keitaro Shoji ,  Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki

发明人： Keitaro Shoji ,  Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and an opposed rotator disposed opposite the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed opposite the fixing rotator to heat the fixing rotator. A nip formation pad is disposed opposite an inner circumferential surface of the fixing rotator. The nip formation pad includes a base, a first thermal conductor sandwiched between the base and the fixing rotator and having a first thermal conductivity greater than a thermal conductivity of the base, and a bulge projecting from the first thermal conductor toward the opposed rotator at a downstream end of the first thermal conductor in a recording medium conveyance direction.

公开(公告)号：US09618886B2

公开(公告)日：2017-04-11

申请号：US14979686

申请日：2015-12-28

申请人： Takashi Seto ,  Kenji Ishii ,  Kazuhito Kishi ,  Ippei Fujimoto ,  Takayuki Seki ,  Susumu Matsusaka ,  Yasuhiko Ogino ,  Shohta Kobashigawa ,  Hiromasa Takagi

发明人： Takashi Seto ,  Kenji Ishii ,  Kazuhito Kishi ,  Ippei Fujimoto ,  Takayuki Seki ,  Susumu Matsusaka ,  Yasuhiko Ogino ,  Shohta Kobashigawa ,  Hiromasa Takagi

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A nip formation assembly disposed opposite an opposed rotator via an endless belt includes a nip formation pad to press against the opposed rotator via the endless belt to form a fixing nip between the endless belt and the opposed rotator, through which a recording medium bearing a toner image is conveyed. A fixing heater is disposed opposite at least a center span of the endless belt in an axial direction thereof where the recording medium is conveyed. The fixing heater heats the endless belt. A lateral end heater is mounted on the nip formation pad and disposed opposite a lateral end span of an inner circumferential surface of the endless belt in the axial direction thereof. The lateral end heater heats the endless belt.

公开(公告)号：US09529309B2

公开(公告)日：2016-12-27

申请号：US14531313

申请日：2014-11-03

申请人： Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki ,  Keitaro Shoji

发明人： Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki ,  Keitaro Shoji

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2025 ,  G03G2215/2029 ,  G03G2215/2032 ,  G03G2215/2035 ,  G03G2215/2038

摘要： A fixing device includes a fixing rotator, a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator, and a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A support is disposed opposite the pressure rotator via the nip formation pad to support the nip formation pad against pressure from the pressure rotator. The nip formation pad conducts heat in a thickness direction thereof perpendicular to an axial direction of the fixing rotator and a recording medium conveyance direction. The nip formation pad includes a multi-conductivity layer having a thermal conductivity varying in the axial direction of the fixing rotator and a support side layer contacting the support and having a thermal conductivity greater than a thermal conductivity of the support.

摘要翻译： 定影装置包括固定旋转体，与定影旋转体的内周面相对配置的压区形成垫，以及经由固定旋转体压靠在压区形成垫上的压力旋转体，在固定旋转体和压力旋转体之间形成定影辊隙 传送记录媒体。 支撑件通过压区形成垫与压力旋转体相对设置，以支撑压区形成垫抵抗来自压力旋转器的压力。 压区形成垫沿与固定旋转体的轴向垂直的厚度方向和记录介质输送方向传导热量。 压区形成垫包括具有在固定旋转体的轴向上变化的热导率的多导电层和与支撑体接触并具有大于载体的热导率的导热性的支撑侧层。

公开(公告)号：US09581948B2

公开(公告)日：2017-02-28

申请号：US14504626

申请日：2014-10-02

申请人： Hiromasa Takagi ,  Kenji Ishii ,  Takayuki Seki ,  Keitaro Shoji

发明人： Hiromasa Takagi ,  Kenji Ishii ,  Takayuki Seki ,  Keitaro Shoji

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G15/2042 ,  G03G15/2053

摘要： A fixing device includes a fixing rotator and a pressure rotator pressed against a nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. The nip formation pad includes an increased thermal conduction portion having an increased thermal conductivity and a decreased thermal conduction portion having a decreased thermal conductivity and being inboard from the increased thermal conduction portion in the axial direction of the fixing rotator. The increased thermal conduction portion is disposed opposite a non-conveyance span of the fixing rotator where the recording medium is not conveyed and includes an inboard edge inboard from a lateral edge of the recording medium toward a center of the recording medium in the axial direction of the fixing rotator by a predetermined first distance.

摘要翻译： 定影装置包括固定旋转器和经由固定旋转器压靠在压区形成垫上的压力旋转器，以在定影旋转器和压力旋转器之间形成定影夹持部，通过该定影辊隙传送记录介质。 压区形成垫包括具有增加的导热性的增加的热传导部分和具有降低的导热性的降低的热传导部分，并且在固定旋转体的轴向方向上从增加的热传导部分内侧。 增加的热传导部分与固定旋转器的非传送跨度相对，其中记录介质不被传送，并且包括从记录介质的侧边缘朝向记录介质的轴向方向的中心的内侧边缘 固定旋转器预定的第一距离。

公开(公告)号：US09291966B2

公开(公告)日：2016-03-22

申请号：US14467341

申请日：2014-08-25

申请人： Keitaro Shoji ,  Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki

发明人： Keitaro Shoji ,  Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and an opposed rotator disposed opposite the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed opposite the fixing rotator to heat the fixing rotator. A nip formation pad is disposed opposite an inner circumferential surface of the fixing rotator. The nip formation pad includes a base, a first thermal conductor sandwiched between the base and the fixing rotator and having a first thermal conductivity greater than a thermal conductivity of the base, and a bulge projecting from the first thermal conductor toward the opposed rotator at a downstream end of the first thermal conductor in a recording medium conveyance direction.

摘要翻译： 定影装置包括可沿预定旋转方向旋转的定影旋转器和与定影旋转体相对设置的相对旋转体，以在其间传送承载有调色剂图像的记录介质的定影辊隙。 加热器与定影旋转器相对设置，以加热定影旋转器。 压区形成垫与定影旋转体的内周面相对设置。 压区形成垫包括基座，夹在基座和固定旋转体之间的第一热导体，其第一导热率大于基座的导热率，以及从第一导热体向相对旋转体突出的凸起， 第一热导体的下游端在记录介质输送方向上。

公开(公告)号：US07373094B2

公开(公告)日：2008-05-13

申请号：US11582991

申请日：2006-10-19

申请人： Kazuhito Kishi ,  Yasuhisa Kato ,  Akiyasu Amita ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi

发明人： Kazuhito Kishi ,  Yasuhisa Kato ,  Akiyasu Amita ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： A fixing unit thermally fixes a toner on a recording medium by a fixing member having a plurality of internal heaters and an outer peripheral surface, and a temperature sensor detects a surface temperature of the fixing member at a temperature detecting position. At least one first heater, of the heaters, receives power from a first power supply, and remaining second heaters receive power from a second power supply. One of the second heaters closest to the temperature detecting position is the same distance from the temperature detecting position as or is closer to the temperature detecting position than a first heater which is closest to the temperature detecting position.

摘要翻译： 定影单元通过具有多个内部加热器和外周面的固定构件将调色剂热定影在记录介质上，温度传感器在温度检测位置检测定影构件的表面温度。 加热器中的至少一个第一加热器从第一电源接收电力，并且剩余的第二加热器从第二电源接收电力。 距离温度检测位置最近的第二加热器中的一个与距离温度检测位置最接近的第一加热器距离温度检测位置相同或距离温度检测位置相同的距离。

公开(公告)号：US07366432B2

公开(公告)日：2008-04-29

申请号：US11220621

申请日：2005-09-08

申请人： Kazuhito Kishi ,  Susumu Matsusaka ,  Yasuhisa Kato ,  Akiyasu Amita ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi ,  Ryuichi Kikegawa

发明人： Kazuhito Kishi ,  Susumu Matsusaka ,  Yasuhisa Kato ,  Akiyasu Amita ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi ,  Ryuichi Kikegawa

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/205 ,  G03G15/5004

摘要： A fixing device for fixing an image formed on a recording material includes a fixing member and a pressing member which are rotatable to pass the recording material having an image through their nip part, a heating part that heats the fixing member, a storage unit that is charged by an external power source to supply power to the heating part, and a control unit that controls the external power source and the storage unit to supply power to the heating part without rotating the fixing member and pressing member at a time of warming-up the fixing member by the heating part in a first case. The control unit further controls the external power source to supply power to the heating part and controls the storage unit so as not to supply power to the heating part while rotating the fixing member and the pressing member in a second case.

摘要翻译： 用于固定形成在记录材料上的图像的定影装置包括固定构件和按压构件，该固定构件和按压构件可旋转以使具有图像的记录材料通过它们的夹持部分，加热部分加热固定构件，存储单元 由外部电源充电以向加热部供电;以及控制单元，其控制外部电源和存储单元以在预热时旋转固定构件和按压构件而向加热部供电 在第一种情况下由加热部件固定固定部件。 所述控制单元进一步控制所述外部电源向所述加热部供电，并且控制所述存储单元，从而在第二种情况下旋转所述固定构件和所述按压构件的同时不向所述加热部供电。

公开(公告)号：US20070212090A1

公开(公告)日：2007-09-13

申请号：US11749202

申请日：2007-05-16

申请人： Susumu Matsusaka ,  Kazuhito Kishi ,  Yasuhisa Kato ,  Akiyasu Amita ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi

发明人： Susumu Matsusaka ,  Kazuhito Kishi ,  Yasuhisa Kato ,  Akiyasu Amita ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/80

摘要： Power is supplied from a capacitor of an auxiliary power source to a secondary heating element of a heating unit, thereby preventing temperature drop of a fixing roller at the time of continuous paper delivery. An allowable range for starting discharge from the capacitor is set to, for example, 30 to 40 volts. A discharge time in which the voltage of the capacitor reduces to a termination value, such as 20 volts, is longer than a time necessary for a reading unit to read a maximum number (for example, 100 sheets) of documents that can be read at one time.

摘要翻译： 电力从辅助电源的电容器供给到加热单元的二次加热元件，从而防止在连续送纸时定影辊的温度下降。 从电容器开始放电的容许范围设定为例如30〜40伏特。 电容器的电压降低到诸如20伏的终止值的放电时间长于读取单元读取最大数量（例如，100张）可以在 一次。

公开(公告)号：US20060051112A1

公开(公告)日：2006-03-09

申请号：US11220582

申请日：2005-09-08

申请人： Susumu Matsusaka ,  Kazuhito Kishi ,  Yasuhisa Kato ,  Akiyasu Amita ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi ,  Ryuichi Kikegawa

发明人： Susumu Matsusaka ,  Kazuhito Kishi ,  Yasuhisa Kato ,  Akiyasu Amita ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi ,  Ryuichi Kikegawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/205 ,  G03G15/5004 ,  G03G2215/00772

摘要： A fixing device for fixing an image formed on a recording material includes a fixing member disposed on a recording material conveyance path, a heating part configured to heat the fixing member to fix the image formed on the recording material by heat, and a storage unit configured to be charged by an external power source to supply power to the heating part. The fixing device further includes a local ambient temperature detecting unit configured to detect a local ambient temperature in the vicinity of the fixing member, and a control unit configured to change a supply of power from the storage unit to the heating part based on the local ambient temperature.

摘要翻译： 用于固定形成在记录材料上的图像的定影装置包括设置在记录材料传送路径上的固定部件，加热部件，其构造成加热固定部件，以通过加热固定形成在记录材料上的图像;以及存储单元， 由外部电源充电以向加热部供电。 定影装置还包括局部环境温度检测单元，其构造成检测固定构件附近的局部环境温度;以及控制单元，其配置为基于局部环境改变从存储单元向加热部分供电 温度。

公开(公告)号：US20050123315A1

公开(公告)日：2005-06-09

申请号：US11004928

申请日：2004-12-07

申请人： Kazuhito Kishi ,  Yasuhisa Kato ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi

发明人： Kazuhito Kishi ,  Yasuhisa Kato ,  Masami Okamoto ,  Yasutada Tsukioka ,  Hiromasa Takagi

IPC分类号： G03G21/00 ,  G03G15/00 ,  G03G15/20 ,  G03G21/14 ,  G03G21/20 ,  H05B3/00

CPC分类号： G03G15/5004 ,  G03G15/2039 ,  G03G21/20 ,  G03G2215/00978 ,  G03G2215/20

摘要： A heating device including a main power source; a sub power source including a capacitor capable of charging and discharging; a heating member including a main heater and an auxiliary heater and configured to heat a material with the heater and the auxiliary heater, wherein the main heater and the auxiliary heater are supplied with electric power by the main power source and the sub power source; and a sub power source controller configured to control the sub power source such that a temperature of the auxiliary heater is controlled so as to be a target temperature, wherein the sub power source controller changes the target temperature, if necessary. A fixing device and an image forming apparatus including the heating device are also provided.

摘要翻译： 一种加热装置，包括主电源; 子电源，包括能够充电和放电的电容器; 加热构件，包括主加热器和辅助加热器，并且被配置为用加热器和辅助加热器加热材料，其中主加热器和辅助加热器由主电源和副电源供电; 以及子电源控制器，被配置为控制副电源，使得辅助加热器的温度被控制为目标温度，其中如果需要，副电源控制器改变目标温度。 还提供了一种定影装置和包括加热装置的图像形成装置。