公开(公告)号：US20130142551A1

公开(公告)日：2013-06-06

申请号：US13671082

申请日：2012-11-07

申请人： Motoyoshi YAMANO ,  Jun Okamoto ,  Tetsuo Tokuda ,  Takashi Sakamaki ,  Satoshi Ueno ,  Naoto Suzuki ,  Fumihiro Hirose

发明人： Motoyoshi YAMANO ,  Jun Okamoto ,  Tetsuo Tokuda ,  Takashi Sakamaki ,  Satoshi Ueno ,  Naoto Suzuki ,  Fumihiro Hirose

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device fixes a toner image on a recording medium by heating the recording medium, with a heating area and a non-heating area selected in accordance with a magnetic flux and a repulsive magnetic flux. The fixing device includes a heat generating layer, an exciting coil, and a demagnetizing member. The heat generating layer generates heat. The exciting coil generates the magnetic flux, and thereby inductively heats the heat generating layer. The demagnetizing member faces the heat generating layer in the non-heating area. The demagnetizing member generates the repulsive magnetic flux against the magnetic flux generated by the exciting coil, and thereby demagnetizes the magnetic flux and suppresses the heating. Further, the demagnetizing member has a demagnetization effect different between at least a portion of the non-heating area adjacent to the heating area and the remaining portion of the non-heating area.

摘要翻译： 定影装置通过加热记录介质，根据磁通量和排斥磁通量选择加热区域和非加热区域，将调色剂图像定影在记录介质上。 固定装置包括发热层，励磁线圈和退磁构件。 发热层产生热量。 励磁线圈产生磁通量，从而感应加热发热层。 退磁构件面向非加热区域中的发热层。 退磁构件产生抵抗由励磁线圈产生的磁通的斥力磁通，从而使磁通消磁，并抑制加热。 此外，退磁构件在与加热区域相邻的非加热区域的至少一部分与非加热区域的剩余部分之间具有不同的退磁效果。

公开(公告)号：US09383692B2

公开(公告)日：2016-07-05

申请号：US14050790

申请日：2013-10-10

申请人： Satoshi Ueno ,  Jun Okamoto ,  Tetsuo Tokuda ,  Naoto Suzuki ,  Takashi Sakamaki ,  Fumihiro Hirose ,  Motoyoshi Yamano

发明人： Satoshi Ueno ,  Jun Okamoto ,  Tetsuo Tokuda ,  Naoto Suzuki ,  Takashi Sakamaki ,  Fumihiro Hirose ,  Motoyoshi Yamano

IPC分类号： G03G15/20 ,  G03G21/20

CPC分类号： G03G15/2017 ,  G03G21/206

摘要： A fixing device includes a fixing rotary body to come into contact with a toner image on a recording medium and a pressing rotary body separably pressed against the fixing rotary body to press the recording medium against the fixing rotary body. A cooler, disposed opposite the pressing rotary body to cool the pressing rotary body, includes a fan to move air to the pressing rotary body and at least one inlet duct interposed between the fan and the pressing rotary body to supply air from the fan to the pressing rotary body. The at least one inlet duct selectively cools the pressing rotary body in a variable axial span in an axial direction thereof.

摘要翻译： 定影装置包括与记录介质上的调色剂图像接触的定影旋转体和可分离地压靠在定影旋转体上的按压旋转体，以将记录介质压靠在定影旋转体上。 一个与加压旋转体相对设置的冷却压缩旋转体的冷却器包括一个风扇，用于将空气移动到按压旋转体和至少一个插入在风扇和按压旋转体之间的入口管道，以将空气从风扇供给到 按压旋转体。 所述至少一个入口管道以其轴向可变的轴向跨度选择性地冷却所述按压旋转体。

公开(公告)号：US09052650B2

公开(公告)日：2015-06-09

申请号：US13671082

申请日：2012-11-07

申请人： Motoyoshi Yamano ,  Jun Okamoto ,  Tetsuo Tokuda ,  Takashi Sakamaki ,  Satoshi Ueno ,  Naoto Suzuki ,  Fumihiro Hirose

发明人： Motoyoshi Yamano ,  Jun Okamoto ,  Tetsuo Tokuda ,  Takashi Sakamaki ,  Satoshi Ueno ,  Naoto Suzuki ,  Fumihiro Hirose

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device fixes a toner image on a recording medium by heating the recording medium, with a heating area and a non-heating area selected in accordance with a magnetic flux and a repulsive magnetic flux. The fixing device includes a heat generating layer, an exciting coil, and a demagnetizing member. The heat generating layer generates heat. The exciting coil generates the magnetic flux, and thereby inductively heats the heat generating layer. The demagnetizing member faces the heat generating layer in the non-heating area. The demagnetizing member generates the repulsive magnetic flux against the magnetic flux generated by the exciting coil, and thereby demagnetizes the magnetic flux and suppresses the heating. Further, the demagnetizing member has a demagnetization effect different between at least a portion of the non-heating area adjacent to the heating area and the remaining portion of the non-heating area.

摘要翻译： 定影装置通过加热记录介质，根据磁通量和排斥磁通量选择加热区域和非加热区域，将调色剂图像定影在记录介质上。 固定装置包括发热层，励磁线圈和退磁构件。 发热层产生热量。 励磁线圈产生磁通量，从而感应加热发热层。 退磁构件面向非加热区域中的发热层。 退磁构件产生抵抗由励磁线圈产生的磁通的斥力磁通，从而使磁通消磁，并抑制加热。 此外，退磁构件在与加热区域相邻的非加热区域的至少一部分与非加热区域的剩余部分之间具有不同的退磁效果。

公开(公告)号：US20140112680A1

公开(公告)日：2014-04-24

申请号：US14050790

申请日：2013-10-10

申请人： Satoshi UENO ,  Jun Okamoto ,  Tetsuo Tokuda ,  Naoto Suzuki ,  Takashi Sakamaki ,  Fumihiro Hirose ,  Motoyoshi Yamano

发明人： Satoshi UENO ,  Jun Okamoto ,  Tetsuo Tokuda ,  Naoto Suzuki ,  Takashi Sakamaki ,  Fumihiro Hirose ,  Motoyoshi Yamano

IPC分类号： G03G15/20 ,  G03G21/20

CPC分类号： G03G15/2017 ,  G03G21/206

摘要： A fixing device includes a fixing rotary body to come into contact with a toner image on a recording medium and a pressing rotary body separably pressed against the fixing rotary body to press the recording medium against the fixing rotary body. A cooler, disposed opposite the pressing rotary body to cool the pressing rotary body, includes a fan to move air to the pressing rotary body and at least one inlet duct interposed between the fan and the pressing rotary body to supply air from the fan to the pressing rotary body. The at least one inlet duct selectively cools the pressing rotary body in a variable axial span in an axial direction thereof.

摘要翻译： 定影装置包括与记录介质上的调色剂图像接触的定影旋转体和可分离地压靠在定影旋转体上的按压旋转体，以将记录介质压靠在定影旋转体上。 一个与加压旋转体相对设置的冷却压缩旋转体的冷却器包括一个风扇，用于将空气移动到按压旋转体和至少一个插入在风扇和按压旋转体之间的入口管道，以将空气从风扇供给到 按压旋转体。 所述至少一个入口管道以其轴向可变的轴向跨度选择性地冷却所述按压旋转体。

公开(公告)号：US09152099B2

公开(公告)日：2015-10-06

申请号：US14205826

申请日：2014-03-12

申请人： Satoshi Ueno ,  Tetsuo Tokuda ,  Naoto Suzuki ,  Takashi Sakamaki ,  Kohichi Utsunomiya ,  Fumihiro Hirose ,  Motoyoshi Yamano

发明人： Satoshi Ueno ,  Tetsuo Tokuda ,  Naoto Suzuki ,  Takashi Sakamaki ,  Kohichi Utsunomiya ,  Fumihiro Hirose ,  Motoyoshi Yamano

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G15/2032 ,  G03G2215/2032

摘要： A fixing device includes a pressing rotary body to press against a fixing rotary body. A pivotable pressure lever rotatably mounts the pressing rotary body. A pressurization cam assembly pivots the pressure lever to press the pressing rotary body against the fixing rotary body and release pressure between the pressing rotary body and the fixing rotary body. A pivotable cleaning unit includes a cleaning web separably contacting the pressing rotary body to clean the pressing rotary body, a pressure adjuster contacting the cleaning web to separably press the cleaning web against the pressing rotary body, a take-up reel to reel up the cleaning web, and a supply reel to reel out the cleaning web. A cleaning unit cam assembly contacts the cleaning unit to pivot the cleaning unit to press against and separate from the pressing rotary body.

摘要翻译： 定影装置包括按压固定旋转体的按压旋转体。 可旋转的压力杆可旋转地安装加压旋转体。 加压凸轮组件使压力杆枢转，将按压旋转体按压在固定旋转体上并释放压力旋转体和固定旋转体之间的压力。 可枢转清洁单元包括可分离地接触压力旋转体以清洁按压旋转体的清洁腹板，接触清洁腹板的压力调节器，以将清洁腹板分离地压靠压力旋转体;卷取卷轴，用于卷取清洁 网和供应卷轴卷取清洁网。 清洁单元凸轮组件接触清洁单元以枢转清洁单元以压靠和分离压力旋转体。

公开(公告)号：US09316977B2

公开(公告)日：2016-04-19

申请号：US14204268

申请日：2014-03-11

申请人： Motoyoshi Yamano ,  Tetsuo Tokuda ,  Takashi Sakamaki ,  Naoto Suzuki ,  Satoshi Ueno ,  Kohichi Utsunomiya ,  Fumihiro Hirose

发明人： Motoyoshi Yamano ,  Tetsuo Tokuda ,  Takashi Sakamaki ,  Naoto Suzuki ,  Satoshi Ueno ,  Kohichi Utsunomiya ,  Fumihiro Hirose

IPC分类号： G03G15/20

CPC分类号： G03G15/2057 ,  G03G15/2017 ,  G03G15/2039 ,  G03G15/2053

摘要： A fixing device includes an exciting coil to generate a magnetic flux and a heat generation layer disposed opposite the exciting coil to generate heat by the magnetic flux from the exciting coil. A temperature sensitive magnetic body, disposed opposite the exciting coil via the heat generation layer, obtains and loses magnetism at a temperature defined by a Curie temperature by composition adjustment to selectively create a heating region and a non-heating region of the heat generation layer. A degausser is made of a non-magnetic material having an electrical resistivity smaller than an electrical resistivity of the temperature sensitive magnetic body. The degausser is disposed opposite the exciting coil with an interval in a range of from about 4.2 mm to about 8.2 mm.

摘要翻译： 定影装置包括产生磁通量的励磁线圈和与励磁线圈相对设置的发热层，以通过来自励磁线圈的磁通产生热量。 通过发热层与励磁线圈相对设置的温度敏感磁体通过组成调整在由居里温度限定的温度下获得并失去磁性，以选择性地产生发热层的加热区域和非加热区域。 减阻器由电阻率小于感温磁体的电阻率的非磁性材料制成。 减速器与励磁线圈相对设置，间隔范围为约4.2mm至约8.2mm。

公开(公告)号：US20150227097A1

公开(公告)日：2015-08-13

申请号：US14204268

申请日：2014-03-11

申请人： Motoyoshi YAMANO ,  Tetsuo Tokuda ,  Takashi Sakamaki ,  Naoto Suzuki ,  Satoshi Ueno ,  Kohichi Utsunomiya ,  Fumihiro Hirose

发明人： Motoyoshi YAMANO ,  Tetsuo Tokuda ,  Takashi Sakamaki ,  Naoto Suzuki ,  Satoshi Ueno ,  Kohichi Utsunomiya ,  Fumihiro Hirose

IPC分类号： G03G15/20

CPC分类号： G03G15/2057 ,  G03G15/2017 ,  G03G15/2039 ,  G03G15/2053

摘要： A fixing device includes an exciting coil to generate a magnetic flux and a heat generation layer disposed opposite the exciting coil to generate heat by the magnetic flux from the exciting coil. A temperature sensitive magnetic body, disposed opposite the exciting coil via the heat generation layer, obtains and loses magnetism at a temperature defined by a Curie temperature by composition adjustment to selectively create a heating region and a non-heating region of the heat generation layer. A degausser is made of a non-magnetic material having an electrical resistivity smaller than an electrical resistivity of the temperature sensitive magnetic body. The degausser is disposed opposite the exciting coil with an interval in a range of from about 4.2 mm to about 8.2 mm.

摘要翻译： 定影装置包括产生磁通量的励磁线圈和与励磁线圈相对设置的发热层，以通过来自励磁线圈的磁通产生热量。 通过发热层与励磁线圈相对设置的温度敏感磁体通过组成调整在由居里温度限定的温度下获得并失去磁性，以选择性地产生发热层的加热区域和非加热区域。 减阻器由电阻率小于感温磁体的电阻率的非磁性材料制成。 减速器与励磁线圈相对设置，间隔范围为约4.2mm至约8.2mm。

公开(公告)号：US10191423B2

公开(公告)日：2019-01-29

申请号：US15708734

申请日：2017-09-19

申请人： Ryohhei Sugiyama ,  Hironori Yamaoka ,  Takashi Sakamaki ,  Tetsuo Tokuda ,  Akiyasu Amita ,  Shinichi Namekata ,  Yohhei Watanabe ,  Fumihiro Hirose ,  Teppei Kawata ,  Masateru Ujiie

发明人： Ryohhei Sugiyama ,  Hironori Yamaoka ,  Takashi Sakamaki ,  Tetsuo Tokuda ,  Akiyasu Amita ,  Shinichi Namekata ,  Yohhei Watanabe ,  Fumihiro Hirose ,  Teppei Kawata ,  Masateru Ujiie

IPC分类号： G03G15/20

摘要： An image forming apparatus includes a fixing belt stretched across a first roller and a second roller including an elastic layer. A pressure rotator presses against the second roller via the fixing belt to form a fixing nip between the pressure rotator and the fixing belt. A recording medium bearing a toner image is conveyed through the fixing nip. A clearance detector detects a clearance between the first roller and the second roller. A mover moves the pressure rotator with respect to the second roller in a pressing direction in which the pressure rotator presses against the second roller via the fixing belt and a separation direction in which the pressure rotator separates from the second roller. A controller controls an amount of movement of the pressure rotator moved by the mover toward the second roller based on the clearance detected by the clearance detector.

公开(公告)号：US10401766B2

公开(公告)日：2019-09-03

申请号：US15293881

申请日：2016-10-14

申请人： Ryohhei Sugiyama ,  Hiroshi Ono ,  Hironori Yamaoka ,  Motoyoshi Yamano ,  Yoshikuni Sasaki ,  Tetsuo Tokuda

发明人： Ryohhei Sugiyama ,  Hiroshi Ono ,  Hironori Yamaoka ,  Motoyoshi Yamano ,  Yoshikuni Sasaki ,  Tetsuo Tokuda

IPC分类号： G03G15/20

摘要： An image forming apparatus includes a fixing rotator rotatable in a predetermined direction of rotation, over which a recording medium is conveyed, and a heater to heat the fixing rotator. A temperature detector detects a temperature of the fixing rotator. A controller performs a primary productivity control to define a primary productivity rate of printing per unit time based on the temperature of the fixing rotator that is detected by the temperature detector. The controller calculates an amount of power suppliable to the heater and performs a secondary productivity control simultaneously with and separately from the primary productivity control. The secondary productivity control defines a secondary productivity rate of printing per unit time based on the amount of power suppliable to the heater. The controller selects one of the primary productivity rate and the secondary productivity rate whichever is lower as a productivity rate of the image forming apparatus.

公开(公告)号：US09817345B2

公开(公告)日：2017-11-14

申请号：US15352782

申请日：2016-11-16

申请人： Motoyoshi Yamano ,  Tetsuo Tokuda ,  Yoshikuni Sasaki ,  Hiroshi Ono ,  Hironori Yamaoka ,  Ryohhei Sugiyama ,  Kohichi Utsunomiya ,  Arinobu Yoshiura ,  Hideo Nagafuji

发明人： Motoyoshi Yamano ,  Tetsuo Tokuda ,  Yoshikuni Sasaki ,  Hiroshi Ono ,  Hironori Yamaoka ,  Ryohhei Sugiyama ,  Kohichi Utsunomiya ,  Arinobu Yoshiura ,  Hideo Nagafuji

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2032 ,  G03G15/2064

摘要： A fixing device includes a heater, a fixing rotator, a pressure rotator to press against the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed, a moving device to move the pressure rotator in directions in which the pressure rotator comes into contact with and separates from the fixing rotator, a thermal expansion amount predictor to predict an amount of thermal expansion of the fixing rotator while the recording medium is conveyed, and a nip width adjuster to control a moving distance of the pressure rotator moved by the moving device toward the fixing rotator, depending on the amount of thermal expansion of the fixing rotator predicted by the thermal expansion amount predictor, so as to adjust a width of the fixing nip to maintain a substantially constant width of the fixing nip.