公开(公告)号：US20180329342A1

公开(公告)日：2018-11-15

申请号：US15970819

申请日：2018-05-03

Applicant: Takuya Seshita ,  Kohichi Utsunomiya ,  Hajime Gotoh ,  Takahiro Imada ,  Yutaka Ikebuchi

Inventor： Takuya Seshita ,  Kohichi Utsunomiya ,  Hajime Gotoh ,  Takahiro Imada ,  Yutaka Ikebuchi

IPC: G03G15/20

CPC classification number: G03G15/205 ,  G03G15/1615 ,  G03G15/2025 ,  G03G15/2053 ,  G03G15/206 ,  G03G15/2064 ,  G03G2215/2035

Abstract: A fixing device includes a driving unit, a pressing roller, a heater, a fixing belt, a pressing roller, a nip formation pad that presses against an inner surface of the fixing belt toward the pressing roller via the fixing belt to form a nip, a separation mechanism, a lubricant between the fixing belt and the nip formation pad, and a processor to execute a warming-up operation of the fixing device. In the warming-up operation, before the heater heats the fixing belt, the separation mechanism moves the nip formation pad in a direction of separating the nip formation pad from the pressing roller to set a nip pressure lower than an ordinary nip pressure, and the driving unit rotates the pressing roller that rotates the fixing belt. Thereafter, the heater starts heating, and the separation mechanism moves the nip formation pad to contact the fixing belt at an ordinary nip pressure.

公开(公告)号：US09650219B2

公开(公告)日：2017-05-16

申请号：US15013272

申请日：2016-02-02

Applicant: Arinobu Yoshiura ,  Hideo Nagafuji ,  Yuji Arai ,  Kohichi Utsunomiya ,  Kiho Sai ,  Shohei Saito ,  Yutaka Ikebuchi ,  Motoyoshi Yamano

Inventor： Arinobu Yoshiura ,  Hideo Nagafuji ,  Yuji Arai ,  Kohichi Utsunomiya ,  Kiho Sai ,  Shohei Saito ,  Yutaka Ikebuchi ,  Motoyoshi Yamano

IPC: B65H5/38 ,  B65H29/52 ,  B65H5/06 ,  G03G15/00 ,  G03G15/20

CPC classification number: B65H5/062 ,  B65H5/38 ,  B65H29/52 ,  B65H2402/31 ,  B65H2404/611 ,  B65H2404/693 ,  B65H2601/11 ,  G03G15/2028 ,  G03G15/6529 ,  G03G15/6573 ,  G03G2215/00675 ,  G03G2215/00679

Abstract: A paper conveying device includes a conveying guide, a bearing, a conveying-guide facing surface, and a separation restrictor. The conveying guide includes a conveyance surface for conveying paper and a pivot shaft and is swingable about the pivot shaft. The bearing includes a support surface facing at least an upper semiperimeter of the pivot shaft. The conveying-guide facing surface is provided to face an end of the conveying guide when the conveying guide swings. The end is opposite to the conveyance surface. The separation restrictor is provided to the conveying guide to restrict separation of the pivot shaft from the bearing at least in a given swing range of the conveying guide by contacting the conveying-guide facing surface.

公开(公告)号：US20170131664A1

公开(公告)日：2017-05-11

申请号：US15295275

申请日：2016-10-17

Applicant: Kohichi UTSUNOMIYA ,  Hideo NAGAFUJI ,  Arinobu YOSHIURA ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

Inventor： Kohichi UTSUNOMIYA ,  Hideo NAGAFUJI ,  Arinobu YOSHIURA ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

IPC: G03G15/20

CPC classification number: G03G15/2025 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes a fixing rotator that is endless and rotatable in a rotation direction and a heater to heat the fixing rotator. A pressure rotator contacts an outer circumferential surface of the fixing rotator. A nip formation pad presses against the pressure rotator via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The nip formation pad includes an upstream portion disposed upstream from the fixing nip in the rotation direction of the fixing rotator. A recess is disposed in the upstream portion of the nip formation pad. A friction reducer is sandwiched between the nip formation pad and the fixing rotator and bears a lubricant.

公开(公告)号：US20170102652A1

公开(公告)日：2017-04-13

申请号：US15384838

申请日：2016-12-20

Applicant: Takahiro IMADA ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Naoki Iwaya ,  Tetsuo Tokuda ,  Hiromasa Takagi ,  Yoshiki Yamaguchi ,  Ippei Fujimoto ,  Takuya Seshita ,  Yutaka Ikebuchi ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Hajime Gotoh

Inventor： Takahiro IMADA ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Naoki Iwaya ,  Tetsuo Tokuda ,  Hiromasa Takagi ,  Yoshiki Yamaguchi ,  Ippei Fujimoto ,  Takuya Seshita ,  Yutaka Ikebuchi ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Hajime Gotoh

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

Abstract: According to an embodiments, a fixing device includes: an endless fixing member; a heating unit that is provided inside an inner peripheral surface of the fixing member; and a nip forming unit that comes into press-contact with a rotationally driven pressing member with the fixing member interposed therebetween to form a nip. The nip forming unit has a shape in which a center of a contact surface protrudes toward the pressing member compared to both ends. The nip forming unit has a protruding amount at a center toward the pressing member compared to both ends of the nip forming unit in no-load state is set to be less than a bent amount of the nip forming unit when the nip forming unit comes into press-contact with the pressing member with the fixing member interposed therebetween.

公开(公告)号：US20160378033A1

公开(公告)日：2016-12-29

申请号：US15160374

申请日：2016-05-20

Applicant: Yasunori ISHIGAYA ,  Yutaka IKEBUCHI ,  Kazuya SAITO ,  Keitaro SHOJI ,  Ryohei MATSUDA ,  Hiromasa TAKAGI ,  Ryuuichi MIMBU ,  Toshihiko SHIMOKAWA

Inventor： Yasunori ISHIGAYA ,  Yutaka IKEBUCHI ,  Kazuya SAITO ,  Keitaro SHOJI ,  Ryohei MATSUDA ,  Hiromasa TAKAGI ,  Ryuuichi MIMBU ,  Toshihiko SHIMOKAWA

IPC: G03G15/20

CPC classification number: G03G15/206 ,  G03G2215/0132 ,  G03G2215/2035

Abstract: A fixing device includes a rotatable endless belt formed into a loop and a heater disposed opposite the endless belt to heat the endless belt. A nip formation pad is disposed inside the loop formed by the endless belt. The nip formation pad includes a metallic thermal equalizer extending in an axial direction of the endless belt. A rotatable pressure rotator presses against the nip formation pad via the endless belt to form a fixing nip between the endless belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed. The pressure rotator includes an increased tackiness portion disposed at a lateral end of the pressure rotator in an axial direction of the pressure rotator to transmit a driving force to the endless belt. The increased tackiness portion is disposed opposite the thermal equalizer of the nip formation pad.

Abstract translation: 定影装置包括形成环的可旋转环形带和与环形带相对设置的加热环形带的加热器。 辊隙形成垫设置在由环形带形成的环内。 压区形成垫包括在环形带的轴向方向上延伸的金属热均衡器。 可旋转的压力旋转器通过环形带压靠在辊隙形成垫上，以在环形带和压力旋转器之间形成定影辊隙，通过该固定辊隙，承载有调色剂图像的记录介质。 压力旋转器包括在压力旋转器的轴向方向上设置在压力转子的侧端处的增加的粘性部分，以将驱动力传递到环形带。 增加的粘性部分设置成与辊隙形成垫的热均衡器相对。

公开(公告)号：US09494900B2

公开(公告)日：2016-11-15

申请号：US14790297

申请日：2015-07-02

Applicant: Kohichi Utsunomiya ,  Hideo Nagafuji ,  Yuji Arai ,  Arinobu Yoshiura ,  Qifeng Cui ,  Shohei Saito ,  Yutaka Ikebuchi ,  Motoyoshi Yamano

Inventor： Kohichi Utsunomiya ,  Hideo Nagafuji ,  Yuji Arai ,  Arinobu Yoshiura ,  Qifeng Cui ,  Shohei Saito ,  Yutaka Ikebuchi ,  Motoyoshi Yamano

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2042 ,  G03G15/206 ,  G03G15/2064 ,  G03G2215/2035

Abstract: A device includes a fixing belt, a holder that holds the fixing belt, a pressing member that comes in contact with the fixing belt, a nip-forming-member arranged inside the fixing belt, that forms a nip by coming in contact with the pressing member, a supporting member that supports the nip-forming-member, a side plate to which the nip-forming-member and the supporting member are fixed, and a pressing mechanism that presses a pressing roller to the nip-forming-member via the fixing belt. The supporting member includes at least two plates. The two plates are separated from each other near a contact portion where the plates come in contact with the nip-forming-member. At least a part of each of the plates is a flat surface parallel to a direction of a load applied by the pressing mechanism. Portions of the two plates on a side distant from the contact portion are joined together.

Abstract translation: 一种装置包括定影带，固定定影带的保持器，与定影带接触的按压构件，布置在定影带内部的夹持形成构件，其与压紧件接触形成辊隙 构件，支撑夹持形成构件的支撑构件，夹持形成构件和支撑构件被固定的侧板;以及按压机构，其通过该夹持构件与压区成形构件 定影带 支撑构件包括至少两个板。 两个板在接触部分附近彼此分开，其中板与辊隙形成部件接触。 每个板的至少一部分是平行于由按压机构施加的负载方向的平坦表面。 两个板的远离接触部分的一部分接合在一起。

公开(公告)号：US09429888B2

公开(公告)日：2016-08-30

申请号：US14792870

申请日：2015-07-07

Applicant: Kohichi Utsunomiya ,  Hideo Nagafuji ,  Yuji Arai ,  Arinobu Yoshiura ,  Kiho Sai ,  Shohei Saito ,  Yutaka Ikebuchi ,  Motoyoshi Yamano

Inventor： Kohichi Utsunomiya ,  Hideo Nagafuji ,  Yuji Arai ,  Arinobu Yoshiura ,  Kiho Sai ,  Shohei Saito ,  Yutaka Ikebuchi ,  Motoyoshi Yamano

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

Abstract: A fixing device includes an endless fixing belt: a fixing belt holding member; a pressure member that makes a contact with the circumference of the fixing belt; a nip forming member that is disposed inside the fixing belt and forms a nip between the nip forming member and the pressure member; a nip supporting member that is made of a sheet metal; a side plate that supports the fixing belt holding member and the nip supporting member; and a pressure mechanism that presses the pressure member against the nip forming member with the fixing belt between the pressure member and the nip forming member. Both end surfaces of the nip supporting member are shear surfaces and one of the shear surfaces makes a contact with the nip forming member and the other shear surface is supported by the side plate.

Abstract translation: 固定装置包括环形定影带：定影带保持构件; 与所述定影带的圆周接触的压力构件; 辊隙形成构件，其设置在所述定影带的内部并在所述辊隙形成构件和所述压力构件之间形成辊隙; 由金属板制成的辊隙支撑构件; 支撑定影带保持构件和夹持支撑构件的侧板; 以及压力机构，其通过所述压力构件和所述辊隙形成构件之间的所述定影带将所述压力构件压靠在所述辊隙形成构件上。 夹持支撑构件的两个端面是剪切面，其中一个剪切面与夹持形成构件接触，另一个剪切面由侧板支撑。

公开(公告)号：US09389550B2

公开(公告)日：2016-07-12

申请号：US14161662

申请日：2014-01-22

Applicant: Kazuya Saito ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Shuntaro Tamaki ,  Toshihiko Shimokawa ,  Hiroshi Yoshinaga ,  Yutaka Ikebuchi ,  Shuutaroh Yuasa

Inventor： Kazuya Saito ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Shuntaro Tamaki ,  Toshihiko Shimokawa ,  Hiroshi Yoshinaga ,  Yutaka Ikebuchi ,  Shuutaroh Yuasa

IPC: G03G15/20

CPC classification number: G03G15/2017 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

Abstract: A fixing device includes a fixing rotary body rotatable in a predetermined direction of rotation and a heater disposed opposite and heating the fixing rotary body. An opposed body contacts the fixing rotary body with releasable pressure therebetween to form a fixing nip therebetween through which a recording medium is conveyed. A heat shield is interposed between the heater and the fixing rotary body and movable in a circumferential direction of the fixing rotary body between a home position where the heat shield is disposed opposite the heater indirectly and a shield position where the heat shield is disposed opposite the heater directly to shield the fixing rotary body from the heater. A controller is operatively connected to the heat shield to move the heat shield to the home position when a print job is finished.

Abstract translation: 定影装置包括可沿预定旋转方向旋转的定影旋转体和与该固定旋转体相对地加热的加热器。 相对的身体与固定旋转体接触，其间具有可释放的压力，以在其间输送定影夹持物，通过该定影夹持物传送记录介质。 加热器和固定旋转体之间设置有隔热罩，并且能够在固定旋转体的圆周方向上在隔热件间隔设置的原始位置与隔热件相对设置的屏蔽位置 加热器直接将加热器的固定旋转体屏蔽。 当打印作业完成时，控制器可操作地连接到隔热罩以将隔热板移动到原始位置。

公开(公告)号：US20160147185A1

公开(公告)日：2016-05-26

申请号：US15013807

申请日：2016-02-02

Applicant: TAKAMASA HASE ,  HIROSHI YOSHINAGA ,  TAKESHI UCHITANI ,  YUTAKA IKEBUCHI ,  TAKUYA SESHITA ,  SHUUTAROH YUASA

Inventor： TAKAMASA HASE ,  HIROSHI YOSHINAGA ,  TAKESHI UCHITANI ,  YUTAKA IKEBUCHI ,  TAKUYA SESHITA ,  SHUUTAROH YUASA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2017 ,  G03G2215/2035

Abstract: A fixing device includes a rotary endless fixing belt; a nip forming member disposed in an interior of the fixing belt; a rotary opposed member to contact the nip forming member via the fixing belt to form a nip together with the fixing belt; a heat source to directly heat the fixing belt at a portion other than the nip, including at lease one heat-generation part disposed outside lateral ends of a maximum area of the fixing belt where a recording medium passes through, wherein a recording medium carrying an unfixed image is conveyed to the nip and the fixing device fixes the unfixed image onto the recording medium; and a shielding member disposed between the fixing belt and the heat generation part of the heat source and configured to shield heat from the heat source at least at an area outside the maximum passing area of the recording medium.

公开(公告)号：US20160124359A1

公开(公告)日：2016-05-05

申请号：US14921132

申请日：2015-10-23

Applicant: Yutaka Ikebuchi ,  Yoshio Hattori ,  Ryuuichi Mimbu ,  Yasunori Ishigaya ,  Yoshiki Yamaguchi ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Keitaro Shoji

Inventor： Yutaka Ikebuchi ,  Yoshio Hattori ,  Ryuuichi Mimbu ,  Yasunori Ishigaya ,  Yoshiki Yamaguchi ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Keitaro Shoji

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G2215/00599

Abstract: An image forming apparatus includes a fixing rotator and an opposed rotator pressed against the fixing rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed. A heater heats the fixing rotator. A temperature sensor contacts the opposed rotator to detect a temperature of the opposed rotator. A conveyor conveys the recording medium to the fixing nip. A driver drives the conveyor. A controller, operatively connected to the temperature sensor and the driver, controls the driver to drive the conveyor to convey the recording medium to the fixing nip based on the temperature of the opposed rotator detected by the temperature sensor. The controller causes the driver to be ready to drive the conveyor when a change in the detected temperature of the opposed rotator per unit time reaches a predetermined threshold.

Abstract translation: 图像形成装置包括固定旋转体和压靠在定影旋转体上的相对的旋转体，以在其间形成定影辊隙，通过该定影夹持器传送带有调色剂图像的记录介质。 加热器加热定影旋转器。 温度传感器接触相对的旋转体以检测相对转子的温度。 输送机将记录介质传送到定影辊隙。 驱动器驱动输送机。 可操作地连接到温度传感器和驱动器的控制器基于由温度传感器检测到的相对转子的温度来控制驱动器驱动传送器将记录介质传送到定影辊隙。 当每单位时间内相对旋转体的检测温度的变化达到预定阈值时，控制器使驾驶员准备驱动输送机。