公开(公告)号：US20160124359A1

公开(公告)日：2016-05-05

申请号：US14921132

申请日：2015-10-23

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/00599

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20160223964A1

公开(公告)日：2016-08-04

申请号：US15010262

申请日：2016-01-29

申请人： Yutaka IKEBUCHI ,  Yasunori Ishigaya ,  Takuya Seshita ,  Kazuya Saito ,  Yamano Motoyoshi ,  Keitaro Shoji

发明人： Yutaka IKEBUCHI ,  Yasunori Ishigaya ,  Takuya Seshita ,  Kazuya Saito ,  Yamano Motoyoshi ,  Keitaro Shoji

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064

摘要： A fixing device includes a nip formation pad to form a fixing nip between a first fixing rotator and a second fixing rotator, through which a recording medium bearing a toner image is conveyed. The nip formation pad includes a first planar face, a second planar face disposed downstream from the first planar face in a recording medium conveyance direction and being parallel to the first planar face, and a joint face bridging the first planar face and the second planar face. The joint face includes a first curved portion adjoining the first planar face and having a first curvature in a first direction in which a circumferential face of the second fixing rotator is curved and a second curved portion adjoining the second planar face and having a second curvature in a second direction opposite the first direction.

摘要翻译： 定影装置包括压区形成垫，以在第一固定旋转器和第二固定旋转器之间形成定影夹持部，通过该固定旋转器传送承载调色剂图像的记录介质。 压区形成垫包括第一平面，第二平面，其在记录介质传送方向上设置在第一平面的下游并且平行于第一平面;以及接合面，桥接第一平面和第二平面 。 接合面包括与第一平面相邻的第一弯曲部分，并且具有第一方向的第一曲率，其中第二定影旋转体的周面弯曲，第二弯曲部分邻接第二平面并且具有第二曲率 与第一方向相反的第二方向。

公开(公告)号：US09235177B2

公开(公告)日：2016-01-12

申请号：US13731432

申请日：2012-12-31

申请人： Takuya Seshita ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Kazuya Saito ,  Naoki Iwaya ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Teppei Kawata ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Takeshi Uchitani ,  Arinobu Yoshiura ,  Hajime Gotoh ,  Akira Suzuki ,  Ryota Yamashina ,  Yasunori Ishigaya

发明人： Takuya Seshita ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Kazuya Saito ,  Naoki Iwaya ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Teppei Kawata ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Takeshi Uchitani ,  Arinobu Yoshiura ,  Hajime Gotoh ,  Akira Suzuki ,  Ryota Yamashina ,  Yasunori Ishigaya

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039 ,  G03G15/205 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device comprises a rotatable fixing member to apply heat to a recording medium bearing an unfixed image thereon, a heat source to heat the fixing member, and a rotatable pressing member pressing against the fixing member forming a nip therebetween. A driving source rotates and drives the fixing member and the pressing member. An overheat safety device has a relay to open and close a power supply path connected to the heat source. A temperature detector is connected to both the relay and the control unit to detect temperature of the fixing member. The overheat safety device turns off the relay and cuts off power supply to the heat source when the fixing member is overheated. The fixing member is allowed to radiate heat and cool down when the temperature detected by the temperature detector is more than a prescribed level.

摘要翻译： 定影装置包括：可旋转的固定构件，用于向其上承载有未固定图像的记录介质施加热量;加热固定构件的热源;以及压靠在所述固定构件之间形成辊隙的可旋转的按压构件。 驱动源旋转并驱动固定构件和按压构件。 过热安全装置具有用于打开和关闭连接到热源的电源路径的继电器。 温度检测器连接到继电器和控制单元两者以检测固定构件的温度。 过热安全装置关闭继电器，并在固定部件过热时切断热源的供电。 当温度检测器检测到的温度超过规定值时，允许固定部件散热并冷却。

公开(公告)号：US09164438B2

公开(公告)日：2015-10-20

申请号：US14061962

申请日：2013-10-24

申请人： Masahiro Samei ,  Yasunori Ishigaya ,  Ryota Yamashina ,  Takumi Waida

发明人： Masahiro Samei ,  Yasunori Ishigaya ,  Ryota Yamashina ,  Takumi Waida

IPC分类号： G03G15/20

CPC分类号： G03G15/2042

摘要： A fixing device temperature control method includes selectively energizing at least one of a plurality of heaters that heats a fixing rotary body according to an image area on a recording medium where a toner image is formed on the recording medium, detecting a temperature of a pressing rotary body pressed against the fixing rotary body, and controlling the energized, at least one of the plurality of heaters based on the detected temperature of the pressing rotary body so as to heat the fixing rotary body to a target temperature. The image area on the recording medium corresponds to a plurality of axial heating spans on the fixing rotary body.

摘要翻译： 定影装置温度控制方法包括根据在记录介质上形成调色剂图像的记录介质上的图像区域选择性地加热多个加热器中的至少一个加热器，检测压力旋转体的温度 并且基于检测到的加压旋转体的温度来控制多个加热器中的至少一个加热器的通电，以将定影旋转体加热到目标温度。 记录介质上的图像区域对应于定影旋转体上的多个轴向加热跨度。

公开(公告)号：US20150261151A1

公开(公告)日：2015-09-17

申请号：US14641817

申请日：2015-03-09

申请人： Yasunori Ishigaya ,  Keita Maejima

发明人： Yasunori Ishigaya ,  Keita Maejima

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2039 ,  G03G15/2042

摘要： A fixing device includes a pressure rotator pressed against a fixing rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed. A first heater is disposed opposite and heats a first heated span on the fixing rotator spanning in an axial direction thereof. A second heater is disposed opposite and heats a second heated span on the fixing rotator spanning in the axial direction thereof. A temperature sensor unit is disposed opposite an outer circumferential surface of the fixing rotator and includes a first temperature detection element to detect a first temperature of the first heated span on the outer circumferential surface of the fixing rotator and a second temperature detection element to detect a second temperature of the second heated span on the outer circumferential surface of the fixing rotator.

摘要翻译： 定影装置包括压靠固定旋转器的压力旋转器，以在其间形成定影辊隙，通过该定影夹持器输送带有调色剂图像的记录介质。 第一加热器相对地设置，并加热沿其轴向跨过的固定旋转器上的第一加热跨度。 第二加热器相对地设置，并且在固定旋转体上沿其轴向方向加热第二加热跨度。 温度传感器单元与固定旋转体的外圆周表面相对设置，并且包括第一温度检测元件，用于检测固定旋转体的外周表面上的第一加热跨度的第一温度;以及第二温度检测元件， 第二加热跨度的第二温度在定影旋转器的外圆周表面上。

公开(公告)号：US09042761B2

公开(公告)日：2015-05-26

申请号：US13763047

申请日：2013-02-08

申请人： Takeshi Uchitani ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Hiroshi Yoshinaga ,  Arinobu Yoshiura ,  Teppei Kawata ,  Takamasa Hase ,  Hajime Gotoh ,  Takuya Seshita ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Shuutaroh Yuasa ,  Akira Suzuki ,  Shinichi Namekata ,  Ryota Yamashina ,  Yasunori Ishigaya

发明人： Takeshi Uchitani ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Hiroshi Yoshinaga ,  Arinobu Yoshiura ,  Teppei Kawata ,  Takamasa Hase ,  Hajime Gotoh ,  Takuya Seshita ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Shuutaroh Yuasa ,  Akira Suzuki ,  Shinichi Namekata ,  Ryota Yamashina ,  Yasunori Ishigaya

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/205 ,  G03G2215/2035

摘要： A fixing device capable of shifting to a sleep state includes a heat source; a rotatable fixing member that is partly heated by the heat source to heat an unfixed image carrying surface of a recording medium; a rotatable pressing member that is in pressure contact with the fixing member to form a nip portion between the pressing member and the fixing member; a rotation drive unit that directly or indirectly rotates the fixing member; a temperature detecting unit that detects a temperature of the fixing member; and a controller configured to prohibit the fixing device from shifting to the sleep state when the temperature of the fixing member in a region facing the heat source is equal to or more than a predetermined temperature T1 at a point when a predetermined time period t1 has elapsed from the stop of rotation drive of the rotation drive unit.

公开(公告)号：US08886071B2

公开(公告)日：2014-11-11

申请号：US13252543

申请日：2011-10-04

申请人： Yasunori Ishigaya ,  Ryota Yamashina ,  Masahiro Samei ,  Takumi Waida

发明人： Yasunori Ishigaya ,  Ryota Yamashina ,  Masahiro Samei ,  Takumi Waida

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039

摘要： A fixing device includes a rotatable fuser member, a rotatable pressure member, a heater, a rotary driver, a thermometer, and a controller. The rotatable fuser member is subjected to heating. The rotatable pressure member is disposed opposite the fuser member. The heater heats the fuser member. The rotary driver imparts torque to at least one of the fuser and pressure members. The fuser member and the pressure member are pressed against each other to form a fixing nip therebetween. The thermometer is disposed external to the fixing nip to detect a temperature outside the fixing nip. The controller is operatively connected with the thermometer to control an amount of heat applied to the recording medium through the fixing nip according to the detected temperature, so that the recording medium exhibits a substantially constant post-fixing temperature downstream from the fixing nip.

摘要翻译： 定影装置包括可旋转的定影器构件，可旋转的压力构件，加热器，旋转驱动器，温度计和控制器。 可旋转的定影器构件经受加热。 可旋转的压力构件设置成与定影器构件相对。 加热器加热定影器构件。 旋转驱动器向至少一个定影器和压力构件施加扭矩。 定影器构件和压力构件彼此压靠以在它们之间形成定影夹紧。 温度计设置在定影辊隙的外部，以检测定影辊隙外部的温度。 控制器与温度计可操作地连接，以根据检测到的温度控制通过定影辊隙施加到记录介质的热量，使得记录介质在定影辊隙下游表现出基本恒定的定影后温度。

公开(公告)号：US08867943B2

公开(公告)日：2014-10-21

申请号：US13109346

申请日：2011-05-17

申请人： Yasunori Ishigaya ,  Masahiro Samei

发明人： Yasunori Ishigaya ,  Masahiro Samei

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotary body inside which a heat generator is disposed and an exciting coil unit disposed opposite the heat generator via the fixing rotary body. A first moving mechanism is connected to one of the heat generator and the exciting coil unit to move the one of the heat generator and the exciting coil unit between a first position where the exciting coil unit is disposed away from the heat generator and a second position where the exciting coil unit is disposed closer to the heat generator. The exciting coil unit heats a first heat generation layer of the fixing rotary body at the first position, and heats both the first heat generation layer of the fixing rotary body and a second heat generation layer of the heat generator at the second position.

摘要翻译： 定影装置包括：固定旋转体，其内设有发热体;激励线圈单元，经由定影旋转体设置在发热体的对面。 第一移动机构连接到发热体和励磁线圈单元之一，以将发热体和励磁线圈单元之一移动到激励线圈单元远离发热体的第一位置和第二位置 励磁线圈单元设置在靠近发热体的位置。 励磁线圈单元在第一位置处加热固定旋转体的第一发热层，并且在第二位置加热固定旋转体的第一发热层和发热体的第二发热层。

公开(公告)号：US08744330B2

公开(公告)日：2014-06-03

申请号：US13064107

申请日：2011-03-07

申请人： Hiroshi Yoshinaga ,  Akira Shinshi ,  Kenichi Hasegawa ,  Ryota Yamashina ,  Yasunori Ishigaya

发明人： Hiroshi Yoshinaga ,  Akira Shinshi ,  Kenichi Hasegawa ,  Ryota Yamashina ,  Yasunori Ishigaya

IPC分类号： G03G15/20

CPC分类号： G03G15/20 ,  G03G21/20

摘要： A fixing device includes a heat conductive member; a flexible fixing belt looped around the heat conductive member, an inner circumference of the flexible fixing belt slidably contacting a portion of an outer circumferential surface of the heat conductive member; a rotary pressing member disposed opposing the heat conductive member; heat sources disposed in a circumferential direction of the fixing belt at a predetermined interval to heat the heat conductive member; and temperature detectors provided to detect a surface temperature of the fixing belt at a detection position at which heating intensity of a corresponding one of the heat sources is not affected by any other one. In operation, the inner circumferential surface of the fixing belt contacts the heat conductive member at a position at which each temperature detector contacts the fixing belt as the detection position or a position proximal to the detection position of each temperature detector.

摘要翻译： 固定装置包括导热构件; 围绕导热构件环绕的柔性定影带，柔性定影带的内周与导热构件的外周表面的一部分可滑动地接触; 与所述导热构件相对设置的旋转按压构件; 热源以预定间隔设置在定影带的圆周方向上以加热导热构件; 以及温度检测器，用于在相应的一个热源的加热强度不受其他任何影响的检测位置处检测定影带的表面温度。 在操作中，定影带的内周面在每个温度检测器接触定影带的位置处接触导热构件，作为检测位置或接近每个温度检测器的检测位置的位置。

公开(公告)号：US08682237B2

公开(公告)日：2014-03-25

申请号：US14022627

申请日：2013-09-10

申请人： Yasunori Ishigaya ,  Akira Shinshi ,  Kenichi Hasegawa ,  Hiroshi Yoshinaga ,  Ryota Yamashina

发明人： Yasunori Ishigaya ,  Akira Shinshi ,  Kenichi Hasegawa ,  Hiroshi Yoshinaga ,  Ryota Yamashina

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes a fixing member, a pressing member, a stationary member, a metal member, flanges, a first heater, and a second heater. The pressing member is rotatably pressed against an outer circumferential surface of the fixing member to form a nip therebetween. The metal member is fixedly disposed opposite an inner circumferential surface of the fixing member over an area other than the nip. The flanges are disposed at axial edges of the metal member in contact with an inner circumferential surface of the metal member. The first heater is disposed opposite the inner circumferential surface of the metal member to heat an axial middle portion of the metal member. The second heater is disposed opposite the inner circumferential surface of the metal member to heat axial end portions of the metal member. The first heater is disposed farther from the nip than the second heater.

摘要翻译： 定影装置包括固定构件，按压构件，固定构件，金属构件，凸缘，第一加热器和第二加热器。 按压构件被可旋转地压靠在固定构件的外周面上，以在它们之间形成辊隙。 金属构件与除了夹持部以外的区域相对地固定地设置在固定构件的内周面上。 凸缘设置在与金属构件的内周面接触的金属构件的轴向边缘处。 第一加热器与金属构件的内周面相对设置，以加热金属构件的轴向中间部分。 第二加热器与金属构件的内周面相对设置，以加热金属构件的轴向端部。 第一加热器布置得比第二加热器更远离辊隙。