公开(公告)号：US20200159149A1

公开(公告)日：2020-05-21

申请号：US16676673

申请日：2019-11-07

申请人： Takumi WAIDA ,  Yoshio HATTORI ,  Yasunori ISHIGAYA ,  Yoshikuni SASAKI ,  Takahiro IMADA ,  Hironori YAMAOKA ,  Hiromasa TAKAGI ,  Keitaro SHOJI

发明人： Takumi WAIDA ,  Yoshio HATTORI ,  Yasunori ISHIGAYA ,  Yoshikuni SASAKI ,  Takahiro IMADA ,  Hironori YAMAOKA ,  Hiromasa TAKAGI ,  Keitaro SHOJI

IPC分类号： G03G15/20 ,  G03G15/02

摘要： A fixing device includes a fixing rotator, a pressure rotator, a cleaner, a moving assembly, and a temperature detector. The fixing rotator heats and fixes a toner image onto a recording medium. The pressure rotator presses against the fixing rotator. 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 where the cleaner contacts the cleaning target and a separate position where the cleaner is apart from the cleaning target. The temperature detector detects a temperature of one of the cleaner and the cleaning target. The moving assembly moves the cleaner from the contact position to the separate position or from the separate position to the contact position during rotation of the cleaning target, in a case in which the temperature detected is greater than a given value

公开(公告)号：US20210223724A1

公开(公告)日：2021-07-22

申请号：US17147894

申请日：2021-01-13

申请人： Takahiro IMADA ,  Yoshio HATTORI ,  Yoshikuni SASAKI ,  Hiromasa TAKAGI ,  Yasunori ISHIGAYA ,  Takumi WAIDA

发明人： Takahiro IMADA ,  Yoshio HATTORI ,  Yoshikuni SASAKI ,  Hiromasa TAKAGI ,  Yasunori ISHIGAYA ,  Takumi WAIDA

IPC分类号： G03G15/20 ,  G03G21/16

摘要： A fixing device is configured to be detachably attached to an image forming device main body. The fixing device includes a fixing member, a heating source, a pressing member, a conveyance guide member, an exterior member, a relay substrate, and a substrate covering member. The fixing member is configured to heat a toner image so as to fix the toner image on a recording medium. The heating source is configured to heat the fixing member. The pressing member is configured to press against the fixing member to form a nip part. The conveyance guide member is configured to guide the recording medium to the nip part. The exterior member houses at least the fixing member and the pressing member. The substrate covering member covers the relay substrate. The substrate covering member extends from and is integrated with the conveyance guide member.

公开(公告)号：US20200249603A1

公开(公告)日：2020-08-06

申请号：US16726941

申请日：2019-12-26

申请人： Yasunori ISHIGAYA ,  Yoshio HATTORI ,  Yoshikuni SASAKI ,  Hironori YAMAOKA ,  Takahiro IMADA ,  Takumi WAIDA

发明人： Yasunori ISHIGAYA ,  Yoshio HATTORI ,  Yoshikuni SASAKI ,  Hironori YAMAOKA ,  Takahiro IMADA ,  Takumi WAIDA

IPC分类号： G03G15/20

摘要： A fixing device includes a first rotator and a second rotator disposed opposite the first rotator. A heater heats one of the first rotator and the second rotator. A cleaner is disposed opposite the second rotator. A temperature detector is disposed opposite the second rotator at an opposed position being within an increased conveyance span where a first sheet is conveyed and being outboard from a decreased conveyance span in an axial direction of the second rotator where a second sheet smaller than the first sheet is conveyed. The temperature detector detects a temperature of the second rotator. A mover moves the cleaner between a contact position where the cleaner contacts the surface of the second rotator and a separation position where the cleaner separates from the surface of the second rotator based on the temperature of the second rotator, that is detected by the temperature detector.

公开(公告)号：US20230008258A1

公开(公告)日：2023-01-12

申请号：US17852381

申请日：2022-06-29

申请人： Hiromasa TAKAGI ,  Seiji SAITOH ,  Jun OKAMOTO ,  Tamotsu IKEDA ,  Yoshikuni SASAKI ,  Takahiro IMADA

发明人： Hiromasa TAKAGI ,  Seiji SAITOH ,  Jun OKAMOTO ,  Tamotsu IKEDA ,  Yoshikuni SASAKI ,  Takahiro IMADA

IPC分类号： G03G21/20 ,  G03G15/20 ,  G03G15/00

摘要： An image forming apparatus includes two rotators, a driver driving the rotators, a heating device to heat the rotator, a blower blowing air to the heating device, a temperature detector, a recording medium detector, a cover, an open-close detector, and circuitry. The circuitry detects an abnormal state and stops heat generation, determines whether the cover is closed using the open-close detector, controls the blower to blow air when the cover is closed, determines whether the recording medium is in the nip using the recording medium detector, controls the driver to rotate the two rotators when the cover is closed and no recording medium is in the nip, determines whether a temperature detected is equal to or lower than a threshold value before the cover is opened, and controls the blower to decrease an air volume when the temperature detected is equal to or lower than the threshold value.

公开(公告)号：US20230004107A1

公开(公告)日：2023-01-05

申请号：US17825471

申请日：2022-05-26

申请人： Seiji SAITOH ,  Takahiro IMADA ,  Yoshikuni SASAKI ,  Tamotsu IKEDA ,  Hiromasa TAKAGI ,  Jun OKAMOTO

发明人： Seiji SAITOH ,  Takahiro IMADA ,  Yoshikuni SASAKI ,  Tamotsu IKEDA ,  Hiromasa TAKAGI ,  Jun OKAMOTO

IPC分类号： G03G15/20

摘要： A contact-separation device brings a contact-separation member into contact with a contacted member separably and includes a biasing member that generates a biasing force. A presser presses the contact-separation member against the contacted member in a pressing direction with the biasing force from the biasing member. A cam presses the presser in an opposite direction being opposite to the pressing direction. The cam is rotatable and has a cam face. A cam follower has a cam contact face that contacts the cam face of the cam. The cam contact face is curved to project toward the cam. The cam contact face has a curvature that is smaller than a greatest curvature of the cam face of the cam and is greater than a smallest curvature of the cam face of the cam.

公开(公告)号：US20230359142A1

公开(公告)日：2023-11-09

申请号：US18129107

申请日：2023-03-31

申请人： Takahiro IMADA ,  Yoshikuni SASAKI ,  Hiromasa TAKAGI ,  Takuya SESHITA ,  Hiroshi YOSHINAGA ,  Arinobu YOSHIURA

发明人： Takahiro IMADA ,  Yoshikuni SASAKI ,  Hiromasa TAKAGI ,  Takuya SESHITA ,  Hiroshi YOSHINAGA ,  Arinobu YOSHIURA

IPC分类号： G03G21/16

CPC分类号： G03G21/1685 ,  G03G21/1695 ,  G03G21/1638 ,  G03G21/206

摘要： A sheet conveying device includes a pair of conveyors each including a conveyance face to convey a recording medium inside an image forming apparatus. One of the pair of conveyors further includes an exposed face, a handle, and a swing fulcrum. The exposed face is exposed to an outside of the apparatus while an inside of the apparatus is open. The handle is exposed to the outside of the apparatus and operatable to expose the conveyance face to the outside of the apparatus while the inside of the apparatus is open. The swing fulcrum swings the one of the pair of conveyors to expose the conveyance face to the outside of the apparatus when the handle is operated while the inside of the apparatus is open. The handle includes a partial annular portion. The partial annular portion is included in a plane including a swing direction around the swing fulcrum.

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：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：US20240168421A1

公开(公告)日：2024-05-23

申请号：US18379675

申请日：2023-10-13

申请人： Takahiro IMADA ,  Yoshikuni SASAKI ,  Takuya SESHITA

发明人： Takahiro IMADA ,  Yoshikuni SASAKI ,  Takuya SESHITA

IPC分类号： G03G15/20

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

摘要： A removable unit that is attachable to and detachable from a body of an apparatus includes a positioning projection and an upstream projection. The positioning projection projects downward to position a unit or a member located below the removable unit when the removable unit is attached to the body. The upstream projection projects more downward than the positioning projection at an upstream end of the removable unit in an attachment direction of the removable unit to the apparatus. A lower end of the positioning projection is located higher than a line connecting a lower end of the upstream projection and a lower portion of a downstream end of the removable unit in the attachment direction when viewed in a direction orthogonal to both an up and down direction and the attachment direction.

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.