公开(公告)号：US20120121304A1

公开(公告)日：2012-05-17

申请号：US13293561

申请日：2011-11-10

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2035

摘要： A fixing device includes a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The fuser belt is looped into a generally cylindrical configuration. The heater is disposed adjacent to the fuser belt to heat the fuser belt. The fuser pad is disposed inside the loop of the fuser belt, and has an outer peripheral surface thereof formed in a generally concave configuration. The pressure member is disposed opposite the fuser pad with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the outer peripheral surface of the fuser pad through the fuser belt to form a fixing nip therebetween. The fuser pad includes, along the outer peripheral surface thereof, a protruding portion and an inwardly curved portion adjoining the protruding portion to face an outer circumferential surface of the pressure member.

摘要翻译： 定影装置包括可旋转的柔性定影带，加热器，定影垫和压力构件。 定影带环绕成大致圆柱形的构造。 加热器邻近定影带设置以加热定影带。 定影垫设置在定影带的环的内部，并且其外周表面形成为大致凹形的构造。 压力构件设置在定影垫的相对处，定影带插入在定影垫和压力构件之间。 压力构件通过定影带将负载方向压靠在定影垫的外周面上，以在它们之间形成定影辊隙。 定影垫沿着其外周表面包括突出部分和邻接突出部分的面向压力构件的外周表面的向内弯曲部分。

公开(公告)号：US20120121303A1

公开(公告)日：2012-05-17

申请号：US13291678

申请日：2011-11-08

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device includes a rotatable fixing member in a form of an endless belt; a pressing member pressing the fixing member; a contacting member in contact with the pressing member; a holding member holding the contacting member in a pressing direction of the pressing member; a heating unit heating the fixing member; and shape maintaining units maintaining a shape of the fixing member. Further, the heating unit is disposed on an upstream side of a horizontal line passing through the center of the pressing member and the holding member is disposed on a downstream side of a horizontal line passing through the arc axis of the shape maintaining units.

摘要翻译： 定影装置包括环形带形式的可旋转固定构件; 按压所述固定构件的按压构件; 接触构件，其与所述按压构件接触; 保持构件，其沿所述按压构件的按压方向保持所述接触构件; 加热单元加热所述固定构件; 以及形状维持单元保持固定构件的形状。 此外，加热单元设置在通过按压构件的中心的水平线的上游侧，并且保持构件设置在穿过形状保持单元的弧轴的水平线的下游侧。

公开(公告)号：US20120114345A1

公开(公告)日：2012-05-10

申请号：US13286796

申请日：2011-11-01

申请人： IPPEI FUJIMOTO ,  YUJI ARAI ,  HIROMASA TAKAGI ,  YOSHIKI YAMAGUCHI ,  NAOKI IWAYA ,  ARINOBU YOSHIURA ,  TOSHIHIKO SHIMOKAWA ,  TETSUO TOKUDA ,  YUTAKA IKEBUCHI ,  KENJI ISHII ,  TAKAHIRO IMADA ,  HIROSHI YOSHINAGA ,  TAKUYA SESHITA ,  HAJIME GOTOH ,  MASAAKI YOSHIKAWA

发明人： IPPEI FUJIMOTO ,  YUJI ARAI ,  HIROMASA TAKAGI ,  YOSHIKI YAMAGUCHI ,  NAOKI IWAYA ,  ARINOBU YOSHIURA ,  TOSHIHIKO SHIMOKAWA ,  TETSUO TOKUDA ,  YUTAKA IKEBUCHI ,  KENJI ISHII ,  TAKAHIRO IMADA ,  HIROSHI YOSHINAGA ,  TAKUYA SESHITA ,  HAJIME GOTOH ,  MASAAKI YOSHIKAWA

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G2215/2035

摘要： A fixing device includes a fixing belt; a pressing rotary body disposed outside a loop formed by the fixing belt; a nip formation pad disposed inside the loop formed by the fixing belt and pressed against the pressing rotary body via the fixing belt to form a fixing nip between the pressing rotary body and the fixing belt through which a recording medium bearing a toner image is conveyed. The nip formation pad includes a protrusion disposed downstream from the fixing nip in a conveyance direction of the recording medium and protruding toward the pressing rotary body without contacting the pressing rotary body. The fixing device further includes a pressing rotary body mover to contact and move the pressing rotary body bidirectionally in the conveyance direction of the recording medium to move the fixing nip toward and away from the protrusion.

摘要翻译： 定影装置包括定影带; 设置在由所述定影带形成的环的外侧的按压旋转体; 辊隙形成垫，其设置在由所述定影带形成的所述环内部，并且经由所述定影带压靠在所述加压旋转体上，以在所述按压旋转体和所述定影带之间形成定影辊隙，所述定影辊通过所述定影辊隙传送带有调色剂图像的记录介质。 压区形成垫包括在记录介质的传送方向上设置在定影夹持部的下游的突起，并且在不与压制旋转体接触的状态下朝向按压旋转体突出。 定影装置还包括按压旋转体移动器，以在记录介质的传送方向上双向接触和移动按压旋转体，以使定影夹持件朝向和远离突起移动。

公开(公告)号：US20120051774A1

公开(公告)日：2012-03-01

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。

公开(公告)号：US20110229227A1

公开(公告)日：2011-09-22

申请号：US13044970

申请日：2011-03-10

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes a tubular belt holder, a rotatable flexible fuser belt, a contact member, a pressure member, and a heater. The belt holder extends in an axial direction thereof. The fuser belt is looped around the belt holder extending in the axial direction. The contact member has a central axis thereof extending in the axial direction, accommodated in the belt holder. The pressure member has a central axis thereof extending in the axial direction, disposed opposite the belt holder with the fuser belt interposed between the contact member and the pressure member. The pressure member presses against the contact member through the fuser belt to form a fixing nip. The heater is disposed adjacent to the belt holder to heat a circumferential portion of the fuser belt. The belt holder includes a generally semi-cylindrical section to face the heated circumferential portion of the fuser belt.

摘要翻译： 定影装置包括管状带保持器，可旋转的柔性定影带，接触构件，压力构件和加热器。 皮带保持器沿其轴向方向延伸。 定影带围绕沿轴向延伸的皮带保持架环绕。 接触构件具有沿轴向延伸的中心轴线，容纳在带保持器中。 压力构件具有在轴向方向上延伸的中心轴线，与带保持器相对设置，其中定影带置于接触构件和压力构件之间。 压力构件通过定影带压靠接触构件以形成定影辊隙。 加热器邻近带保持器设置以加热定影带的圆周部分。 所述皮带保持器包括面对所述定影带的加热的圆周部分的大致半圆柱形部分。

公开(公告)号：US20110222930A1

公开(公告)日：2011-09-15

申请号：US13028597

申请日：2011-02-16

申请人： IPPEI FUJIMOTO ,  KENJI ISHII ,  MASAAKI YOSHIKAWA ,  HIROSHI YOSHINAGA ,  NAOKI IWAYA ,  YOSHIKI YAMAGUCHI ,  YUTAKA IKEBUCHI ,  TETSUO TOKUDA ,  TAKAHIRO IMADA ,  TAKAMASA HASE ,  TOSHIHIKO SHIMOKAWA ,  TAKUYA SESHITA

发明人： IPPEI FUJIMOTO ,  KENJI ISHII ,  MASAAKI YOSHIKAWA ,  HIROSHI YOSHINAGA ,  NAOKI IWAYA ,  YOSHIKI YAMAGUCHI ,  YUTAKA IKEBUCHI ,  TETSUO TOKUDA ,  TAKAHIRO IMADA ,  TAKAMASA HASE ,  TOSHIHIKO SHIMOKAWA ,  TAKUYA SESHITA

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes a support member fixedly provided inside a loop formed by a fixing member to support a nip formation member provided inside the loop formed by the fixing member. A biasing member is provided between the support member and a heater support that supports a laminated heater that generates heat to be transmitted to the fixing member. The heater support thermally expands in a first direction due to heat generated by the laminated heater. The biasing member applies bias to the heater support in a second direction opposite the first direction and in which the heater support presses the laminated heater against an inner circumferential surface of the fixing member.

摘要翻译： 定影装置包括固定地设置在由固定构件形成的环内的支撑构件，以支撑设置在由固定构件形成的环内的辊隙形成构件。 偏置构件设置在支撑构件和支撑层叠加热器的加热器支撑件之间，该层叠加热器产生热量以传递到固定构件。 加热器支架由于层压加热器产生的热而在第一方向上热膨胀。 偏置构件在与第一方向相反的第二方向上向加热器支撑件施加偏压，并且加热器支撑件将叠层加热器压靠在固定构件的内周面上。

公开(公告)号：US20110222929A1

公开(公告)日：2011-09-15

申请号：US13027595

申请日：2011-02-15

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a nip forming member disposed inside a fixing member and pressed against a pressing member via the fixing member to form a nip portion between the pressing member and the fixing member through which a recording medium bearing a toner image passes. A heat generator disposed inside the fixing member heats the fixing member outside the nip portion and has variable heat distribution over a width of the fixing member. A first temperature detector disposed inside the fixing member contacts an end portion of the heat generator in the width direction of the fixing member, opposite a surface facing the fixing member, to detect a temperature of the heat generator. A second temperature detector disposed inside the fixing member contacts a center of an inner circumferential surface of the fixing member in the width direction, to detect the temperature of the fixing member.

摘要翻译： 固定装置包括一个夹持形成部件，该夹持部件设置在固定部件的内部并且经由固定部件压靠在一个按压部件上，以在按压部件和固定部件之间形成夹持部分，通过该固定部件支承调色剂图像的记录介质通过。 设置在固定部件内部的发热体将固定部件加热到夹持部分的外部，并且在固定部件的宽度上具有可变的热分布。 设置在固定构件内部的第一温度检测器与固定构件的宽度方向的与固定构件相对的表面相对于发热体的端部，以检测发热体的温度。 设置在固定构件内的第二温度检测器在宽度方向上接触固定构件的内周面的中心，以检测固定构件的温度。

公开(公告)号：US20110222875A1

公开(公告)日：2011-09-15

申请号：US13048167

申请日：2011-03-15

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2025 ,  G03G2215/2035 ,  G03G2215/2093

摘要： A fixing unit removably installable in an image forming apparatus includes an endless fixing member; a metal member disposed in proximity to an inner surface of the fixing member; a nip formation member supported by the metal member to slidably contact the fixing member or oppose the fixing member via a slide sheet; a heater to heat the metal member to heat the fixing member; a rotary pressing member to rotate the fixing member, disposed opposite the nip formation member via the fixing member to form a nip between the rotary pressing member and the fixing member; a rotation detector to detect a rotational state of the fixing member. Heating rotation of the fixing member is continuously performed until a predetermined rotational state of the fixing member is obtained, to spread lubricant substantially uniformly at least between the fixing member and the metal member.

摘要翻译： 可移除地安装在图像形成装置中的固定单元包括环形固定构件; 设置在所述固定构件的内表面附近的金属构件; 由所述金属构件支撑的辊隙形成构件，以通过滑动片滑动地接触所述固定构件或与所述固定构件相对; 用于加热金属构件以加热固定构件的加热器; 旋转按压构件，用于使所述固定构件旋转，通过所述固定构件与所述辊隙形成构件相对设置，以在所述旋转按压构件和所述固定构件之间形成辊隙; 旋转检测器，用于检测固定构件的旋转状态。 连续进行固定部件的加热旋转，直到获得固定部件的预定的旋转状态，至少在固定部件和金属部件之间扩散润滑剂。

公开(公告)号：US20110194870A1

公开(公告)日：2011-08-11

申请号：US13020289

申请日：2011-02-03

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2039 ,  G03G2215/2035

摘要： A fixing device includes an endless, fuser belt, a contact member, a pressure member, a heater, a first thermometer, a second thermometer, and a controller. The fuser belt is looped into a generally cylindrical configuration. The contact member extends inside the loop of endless belt. The pressure member extends with the belt interposed between the contact member and the pressure member. The pressure member is pressed against the contact member through the fuser belt to form a fixing nip. The heater includes a first heating element and a second heating element. The first heating element heats the fuser belt at a first position. The second heating element heats the fuser belt at a second position. The first thermometer detects a first temperature of the fuser belt. The second thermometer detects a second temperature of the fuser belt. The controller controls each of the first and second heating elements.

摘要翻译： 定影装置包括环形定影带，接触构件，压力构件，加热器，第一温度计，第二温度计和控制器。 定影带环绕成大致圆柱形的构造。 接触构件在环形带的环内延伸。 压力构件随着带插入在接触构件和压力构件之间而延伸。 压力构件通过定影带压靠接触构件以形成定影辊隙。 加热器包括第一加热元件和第二加热元件。 第一加热元件在第一位置加热定影带。 第二加热元件在第二位置加热定影带。 第一个温度计检测定影带的第一个温度。 第二温度计检测定影带的第二温度。 控制器控制第一和第二加热元件中的每一个。

公开(公告)号：US20110170917A1

公开(公告)日：2011-07-14

申请号：US12926661

申请日：2010-12-02

申请人： Masaaki Yoshikawa ,  Akira Shinshi ,  Yoshiki Yamaguchi ,  Toshihiko Shimokawa ,  Tetsuo Tokuda ,  Yutaka Ikebuchi ,  Naoki Iwaya ,  Shuntaroh Tamaki ,  Hiroshi Yoshinaga ,  Ippei Fujimoto ,  Kenji Ishii

发明人： Masaaki Yoshikawa ,  Akira Shinshi ,  Yoshiki Yamaguchi ,  Toshihiko Shimokawa ,  Tetsuo Tokuda ,  Yutaka Ikebuchi ,  Naoki Iwaya ,  Shuntaroh Tamaki ,  Hiroshi Yoshinaga ,  Ippei Fujimoto ,  Kenji Ishii

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2025 ,  G03G2215/2035

摘要： A fixing device includes a tubular, stationary metal pipe, a flexible fuser belt, a rotatable pressure member, a fuser pad, and a lubricant. The metal pipe is subjected to heating. The flexible fuser belt is looped for rotation around the metal pipe to transfer heat radially outward from the heated metal pipe. The rotatable pressure member extends opposite the metal pipe with the fuser belt interposed between the metal pipe and the pressure member. The fuser pad is held stationary inside the loop of the fuser belt to press against the pressure member through the fuser belt to form a fixing nip. The lubricant is of a given particle size and deposited between the metal pipe and the fuser belt. The surface of the metal pipe has a rough section which exhibits a surface roughness equal to or greater than the particle size of the lubricant.

摘要翻译： 定影装置包括管状固定金属管，柔性定影带，可旋转压力构件，定影垫和润滑剂。 金属管受到加热。 柔性定影带环绕金属管旋转，以将热量从加热的金属管径向向外传递。 可旋转的压力构件与金属管相对延伸，并且定影带置于金属管和压力构件之间。 定影垫固定在定影带的环内，通过定影带压靠压力构件以形成定影辊隙。 润滑剂具有给定的粒度并沉积在金属管和定影带之间。 金属管的表面具有表面粗糙度等于或大于润滑剂的粒径的粗糙部分。