公开(公告)号：US09141048B2

公开(公告)日：2015-09-22

申请号：US14206301

申请日：2014-03-12

申请人： Tsukasa Satoh ,  Hironori Yamaoka ,  Shinichi Namekata

发明人： Tsukasa Satoh ,  Hironori Yamaoka ,  Shinichi Namekata

IPC分类号： G03G15/20

CPC分类号： G03G15/2042

摘要： A fixing device, corresponding to a plurality of sheet passing widths, includes a rotating member configured to convey a recording medium, rise in temperature, and fix toner; temperature sensors configured to detect the surface temperature of the rotating member; heating members including at least one heat generating unit, provided inside the rotating member; and a control unit configured to control a heating state obtained by the heating members. The heat generating units are provided not to overlap each other in the direction of the sheet passing width orthogonal to the recording medium conveying direction. The temperature sensors are only placed at positions corresponding to the heat generating units used when printing on the recording medium having a minimum width. The control unit controls the heating state in accordance with the surface temperature, a sheet passing width, and an operational state of the rotating member that changes with time.

摘要翻译： 对应于多个片材通过宽度的定影装置包括构造成传送记录介质，升高温度并固定调色剂的旋转部件; 温度传感器，被配置为检测所述旋转部件的表面温度; 加热构件，包括设置在旋转构件内部的至少一个发热单元; 以及控制单元，被配置为控制由所述加热构件获得的加热状态。 这些发热单元在与记录介质传送方向正交的片材通过宽度的方向上设置为不彼此重叠。 温度传感器仅放置在与具有最小宽度的记录介质上打印时所使用的发热单元对应的位置。 控制单元根据随着时间而变化的表面温度，片材通过宽度和旋转构件的操作状态来控制加热状态。

公开(公告)号：US09645535B2

公开(公告)日：2017-05-09

申请号：US14311473

申请日：2014-06-23

申请人： Hironori Yamaoka ,  Shinichi Namekata ,  Tsukasa Satoh

发明人： Hironori Yamaoka ,  Shinichi Namekata ,  Tsukasa Satoh

IPC分类号： G03G15/20

CPC分类号： G03G15/2042

摘要： A fixing device includes a rotational member configured to convey and heat a sheet-shaped recording medium, the rotational member including a first heating member and a second heating member provided in parallel to a rotational axis of the rotational member in an interior thereof, the first heating member including a first heat generation part, the second heating member including a second heat generation part and an auxiliary heat generation part adjacent to the second heat generation part, a common temperature sensor configured to sense a temperature of the first heating member and a temperature of the second heating member, and a control part configured to control a ratio of a rate of lighting of the first heating member and a rate of lighting of the second heating member based on the temperature of the first heating member and the temperature of the second heating member.

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：US20200159148A1

公开(公告)日：2020-05-21

申请号：US16675912

申请日：2019-11-06

申请人： Takahiro IMADA ,  Yoshio Hattori ,  Yoshikuni Sasaki ,  Hironori Yamaoka ,  Yasunori Ishigaya ,  Takumi Waida

发明人： Takahiro IMADA ,  Yoshio Hattori ,  Yoshikuni Sasaki ,  Hironori Yamaoka ,  Yasunori Ishigaya ,  Takumi Waida

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing rotator, a pressure rotator, a cleaner, and a moving assembly. The cleaner contacts and cleans a cleaning target, which includes one of the fixing rotator and the pressure rotator. The moving assembly moves the cleaner between a contact position at which the cleaner contacts the cleaning target and a separate position at which the cleaner is apart from the cleaning target. The moving assembly includes a biasing member that presses the cleaner to move to the contact position. The moving assembly moves the cleaner from the contact position to the separate position against a biasing force of the biasing member. The moving assembly moves the cleaner from the separate position to the contact position while increasing and then decreasing the biasing force of the biasing member greater than the biasing force applied when the cleaner is located at the contact position.

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：US20120234656A1

公开(公告)日：2012-09-20

申请号：US13422276

申请日：2012-03-16

申请人： Hironori Yamaoka

发明人： Hironori Yamaoka

IPC分类号： B65G39/16

CPC分类号： G03G15/1615 ,  G03G15/161 ,  G03G15/755 ,  G03G2215/00143 ,  G03G2215/00168 ,  G03G2215/2009 ,  G03G2215/2016

摘要： A belt skew correcting device corrects a deviation of an endless belt which is supported by a plurality of rollers and which is driven to rotate around the plurality of rollers. An inclined sectional surface of a dislocating member is guided by an inclined sectional surface of a guide member in accordance with a following movement of a following member, so that a rotational shaft of one roller is given a tilt corresponding to an amount of the movement of the endless belt along the rotational shaft, and thereby the one roller can be tiled.

摘要翻译： 带歪斜校正装置校正由多个辊支撑并被驱动绕多个辊旋转的环形带的偏差。 位移构件的倾斜截面由导向构件的倾斜截面根据后续构件的运动引导，使得一个辊的旋转轴相应于一个辊的运动量 沿着旋转轴的环形带，从而可以将一个辊平铺。

公开(公告)号：US10852671B2

公开(公告)日：2020-12-01

申请号：US16675912

申请日：2019-11-06

申请人： Takahiro Imada ,  Yoshio Hattori ,  Yoshikuni Sasaki ,  Hironori Yamaoka ,  Yasunori Ishigaya ,  Takumi Waida

发明人： Takahiro Imada ,  Yoshio Hattori ,  Yoshikuni Sasaki ,  Hironori Yamaoka ,  Yasunori Ishigaya ,  Takumi Waida

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing rotator, a pressure rotator, a cleaner, and a moving assembly. The cleaner contacts and cleans a cleaning target, which includes one of the fixing rotator and the pressure rotator. The moving assembly moves the cleaner between a contact position at which the cleaner contacts the cleaning target and a separate position at which the cleaner is apart from the cleaning target. The moving assembly includes a biasing member that presses the cleaner to move to the contact position. The moving assembly moves the cleaner from the contact position to the separate position against a biasing force of the biasing member. The moving assembly moves the cleaner from the separate position to the contact position while increasing and then decreasing the biasing force of the biasing member greater than the biasing force applied when the cleaner is located at the contact position.

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.

公开(公告)号：US08733542B2

公开(公告)日：2014-05-27

申请号：US13422276

申请日：2012-03-16

申请人： Hironori Yamaoka

发明人： Hironori Yamaoka

IPC分类号： B65G39/16

CPC分类号： G03G15/1615 ,  G03G15/161 ,  G03G15/755 ,  G03G2215/00143 ,  G03G2215/00168 ,  G03G2215/2009 ,  G03G2215/2016

摘要： A belt skew correcting device corrects a deviation of an endless belt which is supported by a plurality of rollers and which is driven to rotate around the plurality of rollers. An inclined sectional surface of a dislocating member is guided by an inclined sectional surface of a guide member in accordance with a following movement of a following member, so that a rotational shaft of one roller is given a tilt corresponding to an amount of the movement of the endless belt along the rotational shaft, and thereby the one roller can be tiled.

摘要翻译： 带歪斜校正装置校正由多个辊支撑并被驱动绕多个辊旋转的环形带的偏差。 位移构件的倾斜截面由导向构件的倾斜截面根据后续构件的运动引导，使得一个辊的旋转轴相应于一个辊的运动量 沿着旋转轴的环形带，从而可以将一个辊平铺。

公开(公告)号：US09715201B2

公开(公告)日：2017-07-25

申请号：US15182034

申请日：2016-06-14

申请人： Takamasa Hase ,  Takashi Fujita ,  Seiji Saitoh ,  Kenji Ishii ,  Akiyasu Amita ,  Kenichi Hasegawa ,  Takashi Seto ,  Tetsuo Tokuda ,  Hiroshi Seo ,  Hironori Yamaoka

发明人： Takamasa Hase ,  Takashi Fujita ,  Seiji Saitoh ,  Kenji Ishii ,  Akiyasu Amita ,  Kenichi Hasegawa ,  Takashi Seto ,  Tetsuo Tokuda ,  Hiroshi Seo ,  Hironori Yamaoka

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/0636 ,  G03G2215/20 ,  G03G2215/2032 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and a pressure rotator to press against the fixing rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed. A rotation load applicator is coupled to one of the fixing rotator and the pressure rotator to apply a rotation load to the one of the fixing rotator and the pressure rotator. The rotation load is in a range of from 0.1 Nm to 0.6 Nm.