公开(公告)号：US09223268B2

公开(公告)日：2015-12-29

申请号：US14470203

申请日：2014-08-27

申请人： Yoshiki Yamaguchi ,  Kazuhito Kishi ,  Masahiro Samei ,  Ippei Fujimoto ,  Misaki Shimizu ,  Yukiko Nakajima ,  Keisuke Kawabata ,  Yasunori Ishigaya ,  Haruyuki Honda

发明人： Yoshiki Yamaguchi ,  Kazuhito Kishi ,  Masahiro Samei ,  Ippei Fujimoto ,  Misaki Shimizu ,  Yukiko Nakajima ,  Keisuke Kawabata ,  Yasunori Ishigaya ,  Haruyuki Honda

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2025

摘要： A fixing device includes a first support and a second support to rotatably support a fixing rotator at a first lateral end and a second lateral end of the fixing rotator in an axial direction thereof. A first stopper is mounted on the first support. A second stopper is mounted on the second support. A first skew restraint projects from an outer circumferential surface of the fixing rotator radially at the first lateral end of the fixing rotator in the axial direction thereof. A second skew restraint projects from the outer circumferential surface of the fixing rotator radially at the second lateral end of the fixing rotator in the axial direction thereof. The second skew restraint comes into contact with the second stopper as the fixing rotator moves in the axial direction thereof toward the first support.

摘要翻译： 定影装置包括第一支撑件和第二支撑件，用于在固定旋转器的轴向方向上的第一横向端部和第二横向端部处可旋转地支撑固定旋转器。 第一止动件安装在第一支架上。 第二止动件安装在第二支架上。 第一偏斜约束从定影旋转器的外周面在固定旋转体的第一横向端部沿其轴向方向径向地突出。 第二歪斜约束从定影旋转器的外周面在固定旋转体的第二横向端部沿其轴向方向径向地突出。 随着固定旋转体沿其轴向朝向第一支撑件移动，第二歪斜约束与第二止动件接触。

公开(公告)号：US20150177659A1

公开(公告)日：2015-06-25

申请号：US14577226

申请日：2014-12-19

申请人： Yasunori Ishigaya ,  Kazuhito Kishi ,  Ippei Fujimoto ,  Keisuke Kawabata ,  Misaki Shimizu ,  Yoshiki Yamaguchi ,  Haruyuki Honda

发明人： Yasunori Ishigaya ,  Kazuhito Kishi ,  Ippei Fujimoto ,  Keisuke Kawabata ,  Misaki Shimizu ,  Yoshiki Yamaguchi ,  Haruyuki Honda

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G01J5/12 ,  G01J2005/123 ,  G01J2005/126 ,  G03G15/2039 ,  G03G15/2053 ,  G03G15/2064 ,  G03G21/20

摘要： A fixing device includes a fixing rotator and a pressure rotator contacting the fixing rotator to form a fixing nip therebetween, through which recording media of a plurality of sizes are conveyed. The recording media create a plurality of non-conveyance spans on a lateral end of the fixing rotator in an axial direction thereof where the recording media are not conveyed. A heater is disposed opposite the fixing rotator to heat the fixing rotator. A multi-view thermopile array is disposed opposite an outer circumferential surface of the lateral end of the fixing rotator in the axial direction thereof and angled relative to the fixing rotator to detect a temperature of the fixing rotator. The thermopile array includes an inboard temperature detection element directed to a conveyance span on the fixing rotator where the recording medium of a decreased size is conveyed.

摘要翻译： 定影装置包括固定旋转器和与定影旋转器接触的压力旋转器，以在其间形成多个尺寸的记录介质。 记录介质在固定旋转器的横向端部沿其轴向方向产生多个非输送跨度，其中不传送记录介质。 加热器与定影旋转器相对设置，以加热定影旋转器。 多视点热电堆阵列与固定转子的横向端部的外周面沿其轴向相对设置并相对于固定旋转体成角度，以检测定影旋转体的温度。 热电堆阵列包括一个内部温度检测元件，该内部温度检测元件被引导到传送尺寸减小的记录介质的定影旋转器上的输送跨度。

公开(公告)号：US20140219696A1

公开(公告)日：2014-08-07

申请号：US14161078

申请日：2014-01-22

申请人： Ippei Fujimoto ,  Kazuhito Kishi ,  Masahiro Samei ,  Hiroshi Ono ,  Hiroshi Seo ,  Yasunori Ishigaya ,  Ryota Yamashina ,  Takumi Waida ,  Takeshi Yamamoto

发明人： Ippei Fujimoto ,  Kazuhito Kishi ,  Masahiro Samei ,  Hiroshi Ono ,  Hiroshi Seo ,  Yasunori Ishigaya ,  Ryota Yamashina ,  Takumi Waida ,  Takeshi Yamamoto

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotary body, an opposed member opposing the fixing rotary body to form a nipping portion, and a heater to heat the fixing rotary body. The heater includes heat generators arranged in a width direction of a recording medium and separately supplied with power. When an unfixed image on the medium has an image area and a non-image area, power supplied to each of the heat generators is controlled so that, of the heat generators, a first heat generator corresponding to the image area becomes a higher temperature and second heat generators corresponding to the non-image area becomes a lower temperature. When the second heat generators are adjacent to each other, power supplied to one of the second heat generators closer to the image area is set to be greater than power supplied to another of the second heat generators farther from the image area.

摘要翻译： 定影装置包括固定旋转体，与定影旋转体相对的相对构件以形成夹持部分，以及加热器来加热定影旋转体。 加热器包括沿记录介质的宽度方向布置并分开供电的发热体。 当介质上的未定影图像具有图像区域和非图像区域时，控制供应给每个发热体的功率，使得在发热体中，对应于图像区域的第一热发生器变得更高温度， 对应于非图像区域的第二热发生器变为较低温度。 当第二发热体彼此相邻时，供给到靠近图像区域的第二热发生器中的一个的功率被设定为大于向图像区域更远的另一个第二发热体提供的功率。

公开(公告)号：US09599941B2

公开(公告)日：2017-03-21

申请号：US14582365

申请日：2014-12-24

申请人： Yoshiki Yamaguchi ,  Kazuhito Kishi ,  Yasunori Ishigaya ,  Ippei Fujimoto ,  Keisuke Kawabata ,  Haruyuki Honda

发明人： Yoshiki Yamaguchi ,  Kazuhito Kishi ,  Yasunori Ishigaya ,  Ippei Fujimoto ,  Keisuke Kawabata ,  Haruyuki Honda

IPC分类号： G03G15/20

CPC分类号： G03G15/2057 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and including a heated face and a heater including a contact face contacting the heated face of the fixing rotator. The contact face has a Vickers hardness not greater than about 600 Hv.

公开(公告)号：US09122212B2

公开(公告)日：2015-09-01

申请号：US14161078

申请日：2014-01-22

申请人： Ippei Fujimoto ,  Kazuhito Kishi ,  Masahiro Samei ,  Hiroshi Ono ,  Hiroshi Seo ,  Yasunori Ishigaya ,  Ryota Yamashina ,  Takumi Waida ,  Takeshi Yamamoto

发明人： Ippei Fujimoto ,  Kazuhito Kishi ,  Masahiro Samei ,  Hiroshi Ono ,  Hiroshi Seo ,  Yasunori Ishigaya ,  Ryota Yamashina ,  Takumi Waida ,  Takeshi Yamamoto

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotary body, an opposed member opposing the fixing rotary body to form a nipping portion, and a heater to heat the fixing rotary body. The heater includes heat generators arranged in a width direction of a recording medium and separately supplied with power. When an unfixed image on the medium has an image area and a non-image area, power supplied to each of the heat generators is controlled so that, of the heat generators, a first heat generator corresponding to the image area becomes a higher temperature and second heat generators corresponding to the non-image area becomes a lower temperature. When the second heat generators are adjacent to each other, power supplied to one of the second heat generators closer to the image area is set to be greater than power supplied to another of the second heat generators farther from the image area.

摘要翻译： 定影装置包括固定旋转体，与定影旋转体相对的相对构件以形成夹持部分，以及加热器来加热定影旋转体。 加热器包括沿记录介质的宽度方向布置并分开供电的发热体。 当介质上的未定影图像具有图像区域和非图像区域时，控制供应给每个发热体的功率，使得在发热体中，对应于图像区域的第一热发生器变得更高温度， 对应于非图像区域的第二热发生器变为较低温度。 当第二发热体彼此相邻时，供给到靠近图像区域的第二热发生器中的一个的功率被设定为大于向图像区域更远的另一个第二发热体提供的功率。

公开(公告)号：US09075357B2

公开(公告)日：2015-07-07

申请号：US14174134

申请日：2014-02-06

申请人： Kazuhito Kishi ,  Takumi Waida ,  Masahiro Samei ,  Hiroshi Ono ,  Takeshi Yamamoto ,  Ippei Fujimoto ,  Hiroshi Seo ,  Ryota Yamashina ,  Yasunori Ishigaya ,  Takashi Fujita

发明人： Kazuhito Kishi ,  Takumi Waida ,  Masahiro Samei ,  Hiroshi Ono ,  Takeshi Yamamoto ,  Ippei Fujimoto ,  Hiroshi Seo ,  Ryota Yamashina ,  Yasunori Ishigaya ,  Takashi Fujita

IPC分类号： G03G15/20

CPC分类号： G03G15/2042

摘要： A fixing device includes a rotatable fixing member to rotate while contacting an unfixed image; a pressure member to form a fixing nip with the fixing member; a heating member having a plurality of heating elements divided in a direction perpendicular to a conveyance direction of a sheet; a heat performance sensor to detect heating performance of each heating element of the heating member, and a controller to control the heating member. The controller controls each heating element independently such that a temperature of a portion of the fixing member corresponding to a blank area becomes lower than the temperature of a portion of the fixing member corresponding to an image area; and controls the temperature to be maintained at each heating element based on the detection result of the heating performance of each heating element detected by the heat performance sensor.

摘要翻译： 固定装置包括可旋转的固定构件，以在接触未定影图像的同时旋转; 压力构件，用于与所述固定构件形成定影辊隙; 加热构件，其具有沿与片材的输送方向垂直的方向分割的多个加热元件; 用于检测加热构件的每个加热元件的加热性能的热性能传感器，以及用于控制加热构件的控制器。 控制器独立地控制每个加热元件，使得对应于空白区域的固定构件的一部分的温度变得低于对应于图像区域的固定构件的一部分的温度; 并且根据由热性能传感器检测到的各加热元件的加热性能的检测结果来控制在各加热元件上保持的温度。

公开(公告)号：US10942475B2

公开(公告)日：2021-03-09

申请号：US16860221

申请日：2020-04-28

申请人： Ippei Fujimoto ,  Yoshiki Yamaguchi ,  Takashi Seto ,  Hiroyuki Shimada

发明人： Ippei Fujimoto ,  Yoshiki Yamaguchi ,  Takashi Seto ,  Hiroyuki Shimada

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing rotator that rotates and includes an inner face. A pressure rotator is disposed opposite the fixing rotator and rotates. A nip former sandwiches the fixing rotator together with the pressure rotator to form a nip between the fixing rotator and the pressure rotator. The nip former includes an outer face disposed opposite the inner face of the fixing rotator. The inner face of the fixing rotator and the outer face of the nip former sandwich a lubricant. At least one of the inner face of the fixing rotator and the outer face of the nip former includes a projection having a volume smaller than 0.3 ml/m2 and a recess having a spatial volume greater than 0.08 ml/m2. The volume and the spatial volume are three-dimensional surface roughness parameters, respectively, defined by the International Organization for Standardization 25178 standard in an initial state before the fixing rotator rotates.

公开(公告)号：US10168653B2

公开(公告)日：2019-01-01

申请号：US15933588

申请日：2018-03-23

申请人： Ryohei Matsuda ,  Ippei Fujimoto ,  Takayuki Seki

发明人： Ryohei Matsuda ,  Ippei Fujimoto ,  Takayuki Seki

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing sleeve, a pair of holders, a heater, a nip formation pad, a pressing member, a pressing mechanism, and a controller. The nip formation pad has a regular crown-shaped surface abutted against an inner surface of the fixing sleeve. The pressing member forms a nip with the nip formation pad in a state of abutting against the fixing sleeve. The controller controls the pressing mechanism in a first mode in which the pressing mechanism presses the pressing member toward the nip formation pad with a first pressing force to equalize a width of the nip and a second mode in which the pressing mechanism presses the pressing member with a second pressing force greater than the first pressing force so that the width of the nip is smaller at both ends than at a center of the nip.

公开(公告)号：US08811837B2

公开(公告)日：2014-08-19

申请号：US12929961

申请日：2011-02-28

申请人： Hiroshi Yoshinaga ,  Kenichi Hasegawa ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Akira Shinshi ,  Naoki Iwaya ,  Yutaka Ikebuchi ,  Tetsuo Tokuda ,  Ippei Fujimoto ,  Yoshiki Yamaguchi ,  Takahiro Imada ,  Takamasa Hase ,  Toshihiko Shimokawa

发明人： Hiroshi Yoshinaga ,  Kenichi Hasegawa ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Akira Shinshi ,  Naoki Iwaya ,  Yutaka Ikebuchi ,  Tetsuo Tokuda ,  Ippei Fujimoto ,  Yoshiki Yamaguchi ,  Takahiro Imada ,  Takamasa Hase ,  Toshihiko Shimokawa

IPC分类号： G03G15/20

CPC分类号： G03G15/20

摘要： A fixing device includes a substantially cylindrical metal member, a heater, an endless, flexible fixing member, a rotary pressing member, a stationary member, a first temperature detector, and a second temperature detector. The first temperature detector is disposed upstream from a nip in a rotation direction of the fixing member to detect a surface temperature of the fixing member. The second temperature detector is disposed downstream from the nip in a rotation direction of the pressing member to detect a surface temperature of the pressing member. When a difference between a surface temperature of the fixing member detected by the first temperature detector and a surface temperature of the pressing member detected by the second temperature detector after a predetermined time has elapsed since the first temperature detector detects the surface temperature of the fixing member is greater than a predetermined threshold, the heater stops heating the metal member.

摘要翻译： 定影装置包括基本上圆柱形的金属构件，加热器，环形，柔性固定构件，旋转按压构件，静止构件，第一温度检测器和第二温度检测器。 第一温度检测器设置在固定构件的旋转方向上的辊隙的上游，以检测固定构件的表面温度。 第二温度检测器沿着按压构件的旋转方向设置在辊隙的下游，以检测按压构件的表面温度。 当从第一温度检测器检测到固定构件的表面温度经过预定时间后经由第一温度检测器检测的固定构件的表面温度与由第二温度检测器检测到的按压构件的表面温度之间的差异 大于预定阈值时，加热器停止加热金属构件。

公开(公告)号：US08682192B2

公开(公告)日：2014-03-25

申请号：US13217488

申请日：2011-08-25

申请人： Yutaka Ikebuchi ,  Yoshiki Yamaguchi ,  Toshihiko Shimokawa ,  Kenji Ishii ,  Naoki Iwaya ,  Takahiro Imada ,  Tetsuo Tokuda ,  Takamasa Hase ,  Hiroshi Yoshinaga ,  Ippei Fujimoto ,  Masaaki Yoshikawa

发明人： Yutaka Ikebuchi ,  Yoshiki Yamaguchi ,  Toshihiko Shimokawa ,  Kenji Ishii ,  Naoki Iwaya ,  Takahiro Imada ,  Tetsuo Tokuda ,  Takamasa Hase ,  Hiroshi Yoshinaga ,  Ippei Fujimoto ,  Masaaki Yoshikawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： An image forming apparatus includes a fixing device including a fixing member; a pressure member to press against the fixing member; and a halogen lamp to heat the fixing member, and a controller to control the halogen lamp. The controller controls an ON duty of the halogen lamp according to a control cycle, and sets the ON duty including two thresholds consisting of a first ON duty and a second ON duty that is larger than the first ON duty. The controller calculates an ON duty of the halogen lamp, judges whether the calculated ON duty is equal to or more than the first duty and less then the second duty, and changes the calculated ON duty when the calculated ON duty is equal to or more than the first duty and less then the second duty.

摘要翻译： 图像形成装置包括：固定装置，包括固定构件; 压力构件，以压靠固定构件; 以及用于加热固定构件的卤素灯，以及控制卤素灯的控制器。 控制器根据控制周期控制卤素灯的导通占空比，并且设置包括由第一导通占空比和大于第一导通占空比的第二导通占空比组成的两个阈值的导通占空比。 控制器计算卤素灯的导通占空比，判断所计算的导通占空比是否等于或大于第一占空比，小于第二占空比，并且当所计算的导通占空比等于或大于 第一责任，少于第二任。