公开(公告)号：US09069304B2

公开(公告)日：2015-06-30

申请号：US14072027

申请日：2013-11-05

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G2215/2035

摘要： In the present invention, upon return from a standby mode or sleep mode, image data is acquired as warming-up time estimate information for estimating the warming-up time to increase the temperature of a fixing belt to a target fixing temperature and, if the acquired image data is the data on a black-and-white image, control is performed to delay the heating start timing of the fixing belt.

摘要翻译： 在本发明中，在从待机模式或睡眠模式返回时，获取图像数据作为用于估计预热时间以将定影带的温度升高到目标定影温度的预热时间估计信息，并且如果 获取的图像数据是黑白图像上的数据，执行控制以延迟定影带的加热开始定时。

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：US09008558B2

公开(公告)日：2015-04-14

申请号：US13721936

申请日：2012-12-20

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2085 ,  G03G15/2028 ,  G03G15/2053 ,  G03G2215/2035

摘要： A separator includes a front edge disposed opposite an outer circumferential surface of an endless belt. The front edge contacts and separates a recording medium from the endless belt. A separation plate mounts the front edge. A contact plate projects from the separation plate in an axial direction of the endless belt and contacts a belt holder that supports the endless belt. A bracket projects from the separation plate in a direction orthogonal to the direction in which the contact plate projects from the separation plate. The bracket includes a notch that engages the belt holder. The contact plate contacting the belt holder and the notch of the bracket engaging the belt holder produce an interval between the front edge of the separator and the outer circumferential surface of the endless belt.

摘要翻译： 分离器包括与环形带的外周表面相对设置的前边缘。 前缘接触并将记录介质从环形带分离。 分隔板安装前缘。 接触板在环形带的轴向上从分离板突出并且接触支撑环形带的带保持器。 支架从分离板沿着与接触板从分离板突出的方向正交的方向突出。 支架包括与皮带保持器接合的凹口。 与皮带保持器接触的接触板和与保持架接合的保持架的凹口在分离器的前边缘和环形带的外周表面之间产生间隔。

公开(公告)号：US08971779B2

公开(公告)日：2015-03-03

申请号：US13690882

申请日：2012-11-30

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2067 ,  G03G15/2032 ,  G03G15/2053

摘要： A fixing device includes a support supporting a nip formation assembly that presses against an opposed rotary body via an endless belt to form a fixing nip between the endless belt and the opposed rotary body. The support includes a base contacting the nip formation assembly. An upstream projection projects from the base in a pressurization direction of the opposed rotary body at a position on the base corresponding to or upstream from an upstream edge of the fixing nip in a recording medium conveyance direction. A downstream projection projects from the base in the pressurization direction of the opposed rotary body at a position on the base corresponding to or downstream from a downstream edge of the fixing nip in the recording medium conveyance direction. The downstream projection is spaced apart from the upstream projection in the recording medium conveyance direction.

摘要翻译： 定影装置包括支撑压区形成组件的支撑件，其经由环形带压靠相对的旋转体，以在环形带和相对的旋转体之间形成定影辊隙。 支撑件包括接触压区形成组件的底座。 上游突起从相对旋转体的加压方向在基板的位于与定影夹持部的上游边缘对应或上游的记录介质输送方向上突出。 下游突出部在相对旋转体的加压方向上的基部处，在与记录介质输送方向上的定影辊隙的下游边缘对应或下游的位置处突出。 下游突起在记录介质传送方向上与上游突起间隔开。

公开(公告)号：US08909117B2

公开(公告)日：2014-12-09

申请号：US13717046

申请日：2012-12-17

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

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

IPC分类号： G03G15/20

摘要： A fixing device that fixes an image on a recording medium includes a rotatable endless belt, deployed in a loop supported by rollers, a nip forming member provided inside the loop formed by the belt, a support member that supports the nip forming member, a counter rotation body disposed outside the loop formed by the belt and configured to form a nip with the belt by being in contact with the nip forming member through the belt, and a heat source configured to heat the belt directly by a radiant heat except at the nip. The support member includes a base portion that contacts the nip forming member and two arms extending from the base portion in a direction away from the nip forming member to partially surround a part of heat generating portion of the heat source.

公开(公告)号：US08831498B2

公开(公告)日：2014-09-09

申请号：US13795267

申请日：2013-03-12

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a rotatable, endless flexible belt, an elongated stationary pad, a rotatable pressure member, a rotary driver, a releasable biasing mechanism, a first guide member, and a second guide member. The endless flexible belt is looped into a generally cylindrical configuration. The elongated stationary pad is stationarily disposed inside the loop of the belt. The rotatable pressure member is disposed parallel to the stationary pad with the belt interposed between the pressure member and the stationary pad. The rotary driver is operatively connected with the pressure member to impart torque to the pressure member. The releasable biasing mechanism is operatively connected with the pressure member to apply a releasable pressure to the pressure member against the belt in a load direction. The first guide member defines a first elongated opening. The second guide member defines a second elongated opening.

摘要翻译： 定影装置包括可旋转的环形柔性带，细长固定垫，可旋转压力构件，旋转驱动器，可释放偏压机构，第一引导构件和第二引导构件。 环形柔性带环绕成大致圆柱形的构造。 细长的固定垫固定地设置在带的环内。 可旋转的压力构件平行于固定衬垫设置，其中带插入在压力构件和固定衬垫之间。 旋转驱动器与压力构件可操作地连接以向压力构件赋予扭矩。 可释放的偏置机构与压力构件可操作地连接，以在负载方向上向压力构件施加可释放的压力。 第一引导构件限定第一细长开口。 第二引导构件限定第二细长开口。

公开(公告)号：US08811843B2

公开(公告)日：2014-08-19

申请号：US13280946

申请日：2011-10-25

申请人： Takamasa Hase ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Satoshi Ueno ,  Teppei Kawata ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Kensuke Yamaji

发明人： Takamasa Hase ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Satoshi Ueno ,  Teppei Kawata ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Kensuke Yamaji

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/205 ,  G03G15/5004

摘要： An image forming apparatus for performing a copier job and a printer job includes a controller operatively connected to a fixing rotary body heater and a pressing rotary body heater to control the fixing rotary body heater and the pressing rotary body heater. The controller activates a standby mode after the copier job and the printer job are finished in which the controller turns off at least the fixing rotary body heater and a subsequent off mode in which the controller turns off the pressing rotary body heater and the fixing rotary body heater, and identifies which of the copier job and the printer job is to be performed to turn on and off the pressing rotary body heater in the standby mode according to the identified job.

摘要翻译： 用于执行复印机作业和打印机作业的图像形成装置包括可操作地连接到定影旋转体加热器的控制器和用于控制定影旋转体加热器和按压旋转体加热器的按压旋转体加热器。 在复印机作业和打印机作业完成之后，控制器启动待机模式，其中控制器至少关闭固定旋转体加热器以及随后关闭模式，其中控制器关闭按压旋转体加热器和固定旋转体 加热器，并且根据所识别的作业来识别在备用模式中要执行复印机作业和打印机作业中的哪一个以打开和关闭按压旋转体加热器。

公开(公告)号：US08737861B2

公开(公告)日：2014-05-27

申请号：US13212718

申请日：2011-08-18

申请人： Takamasa Hase ,  Masanao Ehara ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Satoshi Ueno ,  Teppei Kawata ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Kensuke Yamaji

发明人： Takamasa Hase ,  Masanao Ehara ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Satoshi Ueno ,  Teppei Kawata ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Kensuke Yamaji

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/55

摘要： A fixing device includes a fixing rotation body heating and fixing an unfixed image onto a recording medium; a pressing rotation body pressing the recording medium to the fixing rotation body; and a temperature detection unit detecting a temperature of the pressing rotation body. Further, when a predetermined time period elapses since a warm-up operation has started before a temperature detected by the temperature detection unit is equal to or greater than a predetermined temperature or when the temperature detected by the temperature detection unit is equal to or greater than the predetermined temperature before the predetermined time period elapses since a warm-up operation has started, the fixing device determines that the warm-up operation is finished.

摘要翻译： 定影装置包括固定旋转体，其将未定影图像加热并固定到记录介质上; 按压旋转体，将记录介质按压到固定旋转体; 以及检测按压旋转体的温度的温度检测单元。 此外，当在由温度检测单元检测到的温度等于或大于预定温度之前或者当温度检测单元检测到的温度等于或大于预定温度时，在预热操作已经开始之后经过预定时间段 在预热操作开始之后经过预定时间段之前的预定温度，定影装置确定预热操作结束。

公开(公告)号：US08737859B2

公开(公告)日：2014-05-27

申请号：US13608128

申请日：2012-09-10

申请人： Shuutaroh Yuasa ,  Takeshi Uchitani ,  Takamasa Hase ,  Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Takuya Seshita

发明人： Shuutaroh Yuasa ,  Takeshi Uchitani ,  Takamasa Hase ,  Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Takuya Seshita

IPC分类号： G03G15/20

CPC分类号： G03G15/36 ,  G03G15/2046 ,  G03G2215/0485

摘要： An image forming device forms a toner image on a recording medium. The recording medium goes through a fixing nip N between a fixing member and a pressure member in a fixing unit where the toner image is fixed on the recording medium. A fixing temperature detector detects the temperature of the fixing member. A fixing temperature control unit controls a heater that heats the fixing member so that the detected temperature becomes a target temperature. A size control unit of white space sets a white space at a tip of the recording medium in a direction of the recording medium movement. When a paper counter counts more than a predetermined paper count, the size control unit increases the size of the white space. The fixing temperature control unit decreases the target fixing temperature when the white space goes through the fixing nip.

摘要翻译： 图像形成装置在记录介质上形成调色剂图像。 记录介质在定影单元中经过固定构件和压力构件之间的定影辊隙N，其中调色剂图像被固定在记录介质上。 定影温度检测器检测固定部件的温度。 定影温度控制单元控制加热固定构件的加热器，使得检测到的温度成为目标温度。 白色空间的尺寸控制单元在记录介质移动的方向上在记录介质的顶端设置白色空间。 当纸张计数器计数超过预定纸张数量时，尺寸控制单元增加白色空间的尺寸。 当白色空间通过定影辊隙时，定影温度控制单元降低目标定影温度。

公开(公告)号：US20130209146A1

公开(公告)日：2013-08-15

申请号：US13746677

申请日：2013-01-22

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes an endless belt and a belt holder contacting and rotatably supporting each lateral end of the endless belt in an axial direction thereof. A first protection ring and a second protection ring are interposed between the endless belt and the belt holder in the axial direction of the endless belt and rotatable in accordance with rotation of the endless belt to protect each lateral end of the endless belt as the endless belt is skewed in the axial direction thereof and brought into contact with the first protection ring. A friction coefficient between the first protection ring and the second protection ring is smaller than a friction coefficient between the first protection ring and the endless belt.

摘要翻译： 固定装置包括环形带和皮带保持器，其在轴向方向上接触和可旋转地支撑环形带的每个侧端。 第一保护环和第二保护环在环形带的轴向方向上设置在环形带和带保持器之间，并且可根据环形带的旋转而旋转，以保护环形带的每个侧端作为环形带 在其轴向方向上倾斜并与第一保护环接触。 第一保护环和第二保护环之间的摩擦系数小于第一保护环和环形带之间的摩擦系数。