公开(公告)号：US20160306311A1

公开(公告)日：2016-10-20

申请号：US15132401

申请日：2016-04-19

申请人： Hiroshi ONO ,  Tetsuo TOKUDA ,  Yoshikuni SASAKI ,  Hironori YAMAOKA ,  Ryohhei SUGIYAMA ,  Yamano MOTOYOSHI

发明人： Hiroshi ONO ,  Tetsuo TOKUDA ,  Yoshikuni SASAKI ,  Hironori YAMAOKA ,  Ryohhei SUGIYAMA ,  Yamano MOTOYOSHI

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  F16H25/14 ,  F16H37/12 ,  G03G15/2025 ,  G03G21/1647 ,  G03G2215/0129 ,  G03G2215/2032

摘要： A drive transmission unit transmits driving force to a driven unit including a driven rotator coupled to the drive transmission unit via a unit coupler. The drive transmission unit includes a driving source, a drive transmission member to transmit driving force from the driving source to the driven rotator by engaging the driven rotator, and a basal plate with a turning shaft portion at one end thereof. The basal plate supports the driving source and the drive transmission member thereon. The drive transmission unit is turned around the turning shaft portion together with the driven unit in a direction substantially orthogonal to a direction of a driving reaction force applied to the drive transmission member when the driven rotator receives the driving force from the drive transmission member.

摘要翻译： 驱动传递单元将驱动力传递到包括经由单元耦合器联接到驱动传输单元的从动转子的从动单元。 驱动传递单元包括驱动源，驱动传递构件，用于通过接合从动旋转体将驱动力传递到从动旋转体，以及在其一端具有转动轴部的基板。 基板在其上支撑驱动源和驱动传递构件。 驱动传递单元在被驱动旋转体受到来自驱动传递部件的驱动力的驱动传递部件的驱动反作用力的方向大致正交的方向上与被驱动部件一起转动。

公开(公告)号：US20170146933A1

公开(公告)日：2017-05-25

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：US20170131666A1

公开(公告)日：2017-05-11

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

CPC分类号： G03G15/2039

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 conductivity rate and the secondary productivity rate whichever is lower as a productivity rate of the image forming apparatus.

公开(公告)号：US20180088502A1

公开(公告)日：2018-03-29

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

CPC分类号： G03G15/2032 ,  G03G15/206 ,  G03G15/2064 ,  G03G2215/2032

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：US20230063831A1

公开(公告)日：2023-03-02

申请号：US17842794

申请日：2022-06-17

申请人： Ryohhei SUGIYAMA

发明人： Ryohhei SUGIYAMA

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing belt that is endless and rotatable. A nip formation pad is disposed opposite an inner circumferential face of the fixing belt via a lubricant. A pressure roller sandwiches the fixing belt together with the nip formation pad to form a pressing region through which a recording medium is conveyed. A cap is disposed opposite a lateral end of the fixing belt in an axial direction of the fixing belt. A seal is tubular and contacts an outer circumferential face of the fixing belt in at least a part of an inner circumferential face of the seal. The seal seals a gap between the cap and the fixing belt. The seal includes a non-perpendicular portion that is not perpendicular to a circumferential direction of the fixing belt and defines a slit.