公开(公告)号：US10095166B2

公开(公告)日：2018-10-09

申请号：US15602407

申请日：2017-05-23

申请人： Masami Okamoto ,  Keisuke Kubota ,  Seiji Saitoh ,  Shuutaroh Yuasa ,  Yuuta Kanda ,  Fumihiro Hirose ,  Kensuke Yamaji

发明人： Masami Okamoto ,  Keisuke Kubota ,  Seiji Saitoh ,  Shuutaroh Yuasa ,  Yuuta Kanda ,  Fumihiro Hirose ,  Kensuke Yamaji

IPC分类号： G03G15/20

摘要： A fixing device includes a separator disposed downstream from a nip former in a recording medium conveyance direction and isolated from a pressure rotator via a fixing belt. The separator stretches the fixing belt. A presser is interposed between a fixing nip formed between the living belt and the pressure rotator and an upstream end of the separator in a rotation direction of the fixing belt. The presser comes into contact with an inner circumferential surface of the fixing belt to press the fixing belt against the pressure rotator. A pressure adjuster, contacting the pressure rotator, changes a pressing position of the pressure rotator relative to the fixing belt to adjust pressure exerted from the pressure rotator to the fixing belt. A presser position adjuster, contacting the presser, changes a presser position of the presser relative to the fixing belt according to the pressing position of the pressure rotator.

公开(公告)号：US10012937B2

公开(公告)日：2018-07-03

申请号：US15452877

申请日：2017-03-08

申请人： Shuutaroh Yuasa ,  Keisuke Kubota ,  Masami Okamoto ,  Seiji Saitoh ,  Fumihiro Hirose ,  Kensuke Yamaji ,  Jun Ogino ,  Yuuta Kanda

发明人： Shuutaroh Yuasa ,  Keisuke Kubota ,  Masami Okamoto ,  Seiji Saitoh ,  Fumihiro Hirose ,  Kensuke Yamaji ,  Jun Ogino ,  Yuuta Kanda

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G15/2017 ,  G03G15/2028 ,  G03G15/2032 ,  G03G2215/0129 ,  G03G2215/2032 ,  G03G2215/2041

摘要： A fixing device includes a fixing belt that is endless and rotatable in a rotation direction and a nip former stretching the fixing belt. A pressure rotator presses against the nip former via the fixing belt to form a fixing nip between the fixing belt and the pressure rotator, through which a recording medium is conveyed. A presser is disposed downstream from an exit of the fixing nip in a recording medium conveyance direction. The presser brings the fixing belt into contact with the pressure rotator. A gap retainer contacts the nip former and is coupled to the presser to retain isolation of the presser from the nip former.

公开(公告)号：US20180081309A1

公开(公告)日：2018-03-22

申请号：US15675834

申请日：2017-08-14

申请人： Fumihiro HIROSE ,  Keisuke KUBOTA ,  Masami OKAMOTO ,  Jun OGINO ,  Kensuke YAMAJI ,  Shuutaroh YUASA ,  Yuuta KANDA

发明人： Fumihiro HIROSE ,  Keisuke KUBOTA ,  Masami OKAMOTO ,  Jun OGINO ,  Kensuke YAMAJI ,  Shuutaroh YUASA ,  Yuuta KANDA

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G15/087 ,  G03G15/2039 ,  G03G15/2053 ,  G03G2215/2032 ,  G03G2215/2035

摘要： A fixing device includes a tubular rotator and a first heater disposed inside the tubular rotator and extended in a longitudinal direction of the first heater. The first heater heats the tubular rotator. A second heater is disposed inside the tubular rotator and extended in a longitudinal direction of the second heater. The second heater heats the tubular rotator. A heating adjuster is interposed between the first heater and the second heater. The heating adjuster adjusts heat conduction from the first heater to the second heater. A joint combines the heating adjuster with the second heater.

公开(公告)号：US20170357197A1

公开(公告)日：2017-12-14

申请号：US15602407

申请日：2017-05-23

申请人： Masami OKAMOTO ,  Keisuke Kubota ,  Seiji Saitoh ,  Shuutaroh Yuasa ,  Yuuta Kanda ,  Fumihiro Hirose ,  Kensuke Yamaji

发明人： Masami OKAMOTO ,  Keisuke Kubota ,  Seiji Saitoh ,  Shuutaroh Yuasa ,  Yuuta Kanda ,  Fumihiro Hirose ,  Kensuke Yamaji

IPC分类号： G03G15/20

CPC分类号： G03G15/2032 ,  G03G15/2028 ,  G03G15/206 ,  G03G15/2064 ,  G03G2215/00738 ,  G03G2215/00742 ,  G03G2215/2032

摘要： A fixing device includes a separator disposed downstream from a nip former in a recording medium conveyance direction and isolated from a pressure rotator via a fixing belt. The separator stretches the fixing belt. A presser is interposed between a fixing nip formed between the living belt and the pressure rotator and an upstream end of the separator in a rotation direction of the fixing belt. The presser comes into contact with an inner circumferential surface of the fixing belt to press the fixing belt against the pressure rotator. A pressure adjuster, contacting the pressure rotator, changes a pressing position of the pressure rotator relative to the fixing belt to adjust pressure exerted from the pressure rotator to the fixing belt. A presser position adjuster, contacting the presser, changes a presser position of the presser relative to the fixing belt according to the pressing position of the pressure rotator.

公开(公告)号：US09389560B2

公开(公告)日：2016-07-12

申请号：US14829947

申请日：2015-08-19

申请人： Fumihiro Hirose ,  Masami Okamoto ,  Kenji Nozawa ,  Yuuki Kikushima ,  Kensuke Yamaji ,  Keisuke Kubota ,  Shuutaroh Yuasa ,  Kaori Hemmi

发明人： Fumihiro Hirose ,  Masami Okamoto ,  Kenji Nozawa ,  Yuuki Kikushima ,  Kensuke Yamaji ,  Keisuke Kubota ,  Shuutaroh Yuasa ,  Kaori Hemmi

IPC分类号： G03G15/20

CPC分类号： G03G15/2085 ,  G03G15/2028

摘要： A fixing device includes a guide disposed downstream from a fixing nip formed between a fixing rotator and a pressure rotator, through which a recording medium is conveyed. A pressure rotator side separator, disposed downstream from the fixing nip in a recording medium conveyance direction, includes an opposed tip disposed opposite an outer circumferential surface of the pressure rotator and a separation-conveyance face that separates the recording medium from the pressure rotator. The opposed tip and the separation-conveyance face define a hypothetical circle having a curvature not smaller than 1/20 that intersects a guide face of the guide at an intersection at which a hypothetical tangent is tangent to the hypothetical circle. The hypothetical tangent and the guide face define a downstream intersection angle that is downstream from the hypothetical tangent in the recording medium conveyance direction and is greater than 90 degrees.

摘要翻译： 定影装置包括引导件，该引导件设置在固定旋转器和压力旋转器之间形成的定影夹持器的下游，记录介质通过该定影夹持器被传送。 压力旋转器侧分离器，其设置在记录介质输送方向上的定影辊隙的下游，包括与压力旋转体的外周面相对设置的相对的末端，以及将记录介质与压力旋转体分离的分离输送面。 相对的末端和分离 - 传送面限定了假想圆，该假想圆具有不小于1/20的曲率，该曲率在假想切线与假想圆相切的交点处与导向件的导向面相交。 假设的切线和引导面定义在记录介质输送方向上的假想切线下游的下游交叉角，并且大于90度。

公开(公告)号：US20160139549A1

公开(公告)日：2016-05-19

申请号：US14924206

申请日：2015-10-27

申请人： Kenji NOZAWA ,  Masahiko SATOH ,  Masami OKAMOTO ,  Keisuke KUBOTA ,  Yuuki KlKUSHIMA ,  Shuutaroh YUASA ,  Fumihiro HIROSE ,  Kensuke YAMAJI ,  Kaori HEMMI

发明人： Kenji NOZAWA ,  Masahiko SATOH ,  Masami OKAMOTO ,  Keisuke KUBOTA ,  Yuuki KlKUSHIMA ,  Shuutaroh YUASA ,  Fumihiro HIROSE ,  Kensuke YAMAJI ,  Kaori HEMMI

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G15/2017 ,  G03G15/2064 ,  G03G15/6573 ,  G03G21/1685 ,  G03G2215/2029 ,  G03G2215/2038

摘要： A fixing device includes an endless fixing belt stretched taut across a first roller and a second roller and rotatable in a predetermined direction of rotation. A pressure rotator is pressed against the first roller via the fixing belt to form a fixing nip between the pressure rotator and the fixing belt, through which a recording medium is conveyed. A separation aid, disposed downstream from the fixing nip in the direction of rotation of the fixing belt to separate the recording medium from the fixing belt, includes a contact face contacting an inner circumferential surface of the fixing belt and a bulge disposed at a center of the contact face in a longitudinal direction of the separation aid. The bulge projects toward the inner circumferential surface of the fixing belt relative to each lateral end of the contact face in the longitudinal direction of the separation aid.

摘要翻译： 一种固定装置包括一个环形定影带，该环形定影带拉伸拉紧在第一辊和第二辊之间并且可沿预定的旋转方向旋转。 压力旋转器经由定影带压在第一辊上，以在压力转动器和定影带之间形成定影辊隙，记录介质通过该定影辊隙传送。 一种分离助剂，沿着定影带的旋转方向设置在定影辊隙的下游，以将记录介质与定影带分开，包括接触定影带的内周表面的接触面和设置在定影带的中心的凸起 所述接触面沿所述分离助剂的纵向方向。 凸起朝着分离助剂的纵向方向相对于接触面的每个侧端朝着定影带的内圆周表面突出。

公开(公告)号：US20160070218A1

公开(公告)日：2016-03-10

申请号：US14829947

申请日：2015-08-19

申请人： Fumihiro HIROSE ,  Masami OKAMOTO ,  Kenji NOZAWA ,  Yuuki KIKUSHIMA ,  Kensuke YAMAJI ,  Keisuke KUBOTA ,  Shuutaroh YUASA ,  Kaori HEMMI

发明人： Fumihiro HIROSE ,  Masami OKAMOTO ,  Kenji NOZAWA ,  Yuuki KIKUSHIMA ,  Kensuke YAMAJI ,  Keisuke KUBOTA ,  Shuutaroh YUASA ,  Kaori HEMMI

IPC分类号： G03G15/20

CPC分类号： G03G15/2085 ,  G03G15/2028

摘要： A fixing device includes a guide disposed downstream from a fixing nip formed between a fixing rotator and a pressure rotator, through which a recording medium is conveyed. A pressure rotator side separator, disposed downstream from the fixing nip in a recording medium conveyance direction, includes an opposed tip disposed opposite an outer circumferential surface of the pressure rotator and a separation-conveyance face that separates the recording medium from the pressure rotator. The opposed tip and the separation-conveyance face define a hypothetical circle having a curvature not smaller than 1/20 that intersects a guide face of the guide at an intersection at which a hypothetical tangent is tangent to the hypothetical circle. The hypothetical tangent and the guide face define a downstream intersection angle that is downstream from the hypothetical tangent in the recording medium conveyance direction and is greater than 90 degrees.

摘要翻译： 定影装置包括引导件，该引导件设置在固定旋转器和压力旋转器之间形成的定影夹持器的下游，记录介质通过该定影夹持器被传送。 压力旋转器侧分离器，其设置在记录介质输送方向上的定影辊隙的下游，包括与压力旋转体的外周面相对设置的相对的末端，以及将记录介质与压力旋转体分离的分离输送面。 相对的末端和分离 - 传送面限定了假想圆，该假想圆具有不小于1/20的曲率，该曲率在假想切线与假想圆相切的交点处与导向件的导向面相交。 假设的切线和引导面定义在记录介质输送方向上的假想切线下游的下游交叉角，并且大于90度。

公开(公告)号：US20150093128A1

公开(公告)日：2015-04-02

申请号：US14463941

申请日：2014-08-20

申请人： Masami OKAMOTO

发明人： Masami OKAMOTO

IPC分类号： G03G15/20

CPC分类号： G03G21/1685 ,  G03G15/2025 ,  G03G15/553

摘要： A fixing device includes a rotary fixing member, a sensor, a grinder, and a controller. The rotary fixing member fixes an image on a recording medium. The sensor detects a surface state of the rotary fixing member. The grinder is disposed opposite the rotary fixing member to slide against a surface of the rotary fixing member and grind the surface of the rotary fixing member. The controller controls the grinder to contact or separate from the rotary fixing member, in accordance with a detection result of the surface state detected with the sensor in a recording medium edge passage area of the rotary fixing member over which an edge of a recording medium passes in a direction perpendicular to a feed direction of the recording medium fed with rotation of the rotary fixing member.

摘要翻译： 定影装置包括旋转固定构件，传感器，研磨器和控制器。 旋转固定构件将图像固定在记录介质上。 传感器检测旋转固定构件的表面状态。 研磨机与旋转固定部件相对设置，以抵靠旋转固定部件的表面滑动，并研磨旋转固定部件的表面。 控制器根据在记录介质的边缘通过的旋转固定构件的记录介质边缘通道区域中的传感器检测到的表面状态的检测结果，控制研磨机与旋转固定构件接触或分离的检测结果 在与旋转固定构件的旋转供给的记录介质的进给方向垂直的方向上。

公开(公告)号：US08699904B2

公开(公告)日：2014-04-15

申请号：US12434223

申请日：2009-05-01

申请人： Masami Okamoto ,  Jun Okamoto ,  Kazuo Suno ,  Kenji Nozawa ,  Naoto Suzuki ,  Syoichi Kaneko ,  Yoshihiro Sonohara ,  Keisuke Kubota ,  Takashi Kagami ,  Hiroyuki Shimada

发明人： Masami Okamoto ,  Jun Okamoto ,  Kazuo Suno ,  Kenji Nozawa ,  Naoto Suzuki ,  Syoichi Kaneko ,  Yoshihiro Sonohara ,  Keisuke Kubota ,  Takashi Kagami ,  Hiroyuki Shimada

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/2064 ,  G03G15/2039 ,  G03G15/205 ,  G03G15/5004 ,  G03G15/5029 ,  G03G2215/2029

摘要： A fixing device includes a rotatable first nip formation member, a rotatable second nip formation member, a first heater, a second heater, and a controller. The second nip formation member is provided under the first nip formation member to contact the first nip formation member to form a fixing nip portion between the first nip formation member and the second nip formation member. The first heater heats the first nip formation member. The second heater heats the second nip formation member. The controller supplies a portion of power to the second heater and the remainder of power to the first heater when a plurality of sheets having a sheet weight not greater than about 100 g/m2 passes through the fixing nip portion continuously.

摘要翻译： 定影装置包括可旋转的第一压合形成构件，可旋转的第二压合形成构件，第一加热器，第二加热器和控制器。 第二辊隙形成构件设置在第一辊隙形成构件下方以接触第一辊隙形成构件，以在第一辊隙形成构件和第二辊隙形成构件之间形成定影夹持部。 第一加热器加热第一辊隙形成构件。 第二加热器加热第二压区形成构件。 当具有不大于约100g / m 2的纸张重量的多个片材连续通过定影夹持部分时，控制器向第二加热器提供一部分电力，剩余的电力提供给第一加热器。

公开(公告)号：US08027627B2

公开(公告)日：2011-09-27

申请号：US12434213

申请日：2009-05-01

申请人： Masami Okamoto ,  Jun Okamoto ,  Kazuo Suno ,  Kenji Nozawa ,  Yoshihiro Sonohara ,  Naoto Suzuki ,  Syoichi Kaneko ,  Keisuke Kubota ,  Takashi Kagami ,  Hiroyuki Shimada

发明人： Masami Okamoto ,  Jun Okamoto ,  Kazuo Suno ,  Kenji Nozawa ,  Yoshihiro Sonohara ,  Naoto Suzuki ,  Syoichi Kaneko ,  Keisuke Kubota ,  Takashi Kagami ,  Hiroyuki Shimada

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G2215/2093

摘要： A fixing device includes a fixing member, a pressing member, and an oil applier. In the oil applier, an oil application member applies oil supplied from an oil supply mechanism to one of the fixing member and the pressing member. In the oil supply mechanism, an oil storage member is provided above and adjacent to one of an oil supply member and the oil application member to supply oil overflowing the oil storage member, when oil is put into the oil storage member through an oil inlet, to one of the oil supply member and the oil application member. The oil supply member provided adjacent to the oil storage member supplies oil sent from the oil storage member to the oil application member.

摘要翻译： 定影装置包括固定构件，按压构件和施油器。 在施油机构中，油施加部件将从供油机构供给的油部施加到固定部件和按压部件之一。 在供油机构中，当通过油入口将油放入储油部件时，在供油部件和供油部件之一上设置有油存储部件，供给溢油部件的油， 供油部件和供油部件之一。 设置在储油部件附近的供油部件将从储油部件送出的油供给给油部件。