公开(公告)号：US09996035B2

公开(公告)日：2018-06-12

申请号：US15447666

申请日：2017-03-02

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G15/2017 ,  G03G15/2028 ,  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 the rotation direction of the fixing belt. The presser brings the fixing belt into contact with the pressure rotator. A mover is coupled to the presser to move the presser between a contact position where the presser brings the fixing belt into contact with the pressure rotator and an isolation position where the presser isolates the fixing belt from the pressure rotator.

公开(公告)号：US10088786B2

公开(公告)日：2018-10-02

申请号：US15444946

申请日：2017-02-28

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

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

IPC分类号： G03G15/20

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 separator is disposed downstream from the nip former in a recording medium conveyance direction and stretches the fixing belt. The separator is spaced apart from the pressure rotator via the fixing belt. A presser is interposed between an exit of the fixing nip and an upstream end of the separator in the 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.

公开(公告)号：US10012936B2

公开(公告)日：2018-07-03

申请号：US15447600

申请日：2017-03-02

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G15/2017 ,  G03G15/2028 ,  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 and including an elastic layer as a surface layer. 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.

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：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：US20180299809A1

公开(公告)日：2018-10-18

申请号：US16010625

申请日：2018-06-18

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

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

IPC分类号： G03G15/20

摘要： A separation member that is used to separate a conveyance object from two rotation members, the conveyance object having been sent out from a nip that is formed by the two rotation members that are in contact with one another, the separation member includes a wavy part directed toward the nip and inclined from a normal to a center line of the two rotation members at a predetermined angle. The wavy part covers a contact zone where the conveyance object can come into contact with the separation member along a conveyance direction and along a width direction of the conveyance object, and the wavy part has a plurality of depressions parallel to each other and extending in a direction inclined from the conveyance direction and inclined from the width direction, at least two of the depressions overlapping along the conveyance direction.

公开(公告)号：US09244431B2

公开(公告)日：2016-01-26

申请号：US14645202

申请日：2015-03-11

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

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

IPC分类号： G03G15/20 ,  G03G21/20

CPC分类号： G03G21/206 ,  G03G15/2017 ,  G03G15/2039 ,  G03G2215/2032

摘要： A fixing device includes an elastic rotator and a cooler disposed opposite the rotator to cool the rotator with cooling air. A mover contacts and moves the rotator to a first position where the rotator is disposed opposite the cooler with an increased first interval therebetween and a second position where the rotator is disposed opposite the cooler with a decreased second interval therebetween. A rectification plate is movably mounted on the cooler to contact the rotator constantly to guide the cooling air to the cooler.

摘要翻译： 定影装置包括弹性旋转器和与转子相对设置的冷却器，用冷却空气冷却转子。 移动器接触并将旋转体移动到第一位置，在第一位置，旋转体与冷却器相对设置，其间具有增加的第一间隔，以及第二位置，其中旋转体与冷却器相对设置，其间具有减小的第二间隔。 整流板可移动地安装在冷却器上，以恒定地接触转子以将冷却空气引导到冷却器。

公开(公告)号：US09939761B2

公开(公告)日：2018-04-10

申请号：US14924206

申请日：2015-10-27

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

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

IPC分类号： G03G15/20 ,  G03G15/00 ,  G03G21/16

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.

公开(公告)号：US09268276B2

公开(公告)日：2016-02-23

申请号：US14640768

申请日：2015-03-06

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2085 ,  G03G15/2028 ,  G03G2215/2032

摘要： A fixing device includes a fixing belt stretched taut across a fixing rotator and a support rotator. A pressure rotator is pressed against the fixing rotator via the fixing belt to form a fixing nip between the fixing belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed. The pressure rotator includes a recess defining an outer diameter of each lateral end of the pressure rotator in an axial direction thereof that is greater than an outer diameter of a center of the pressure rotator in the axial direction thereof. A first separator is disposed downstream from the fixing nip in a recording medium conveyance direction and contacts an inner circumferential surface of the fixing belt. The first separator is isolated from the pressure rotator and includes a projection disposed opposite the recess of the pressure rotator.

摘要翻译： 定影装置包括拉伸在固定旋转体上的定影带和支撑旋转体。 压力旋转器经由定影带压靠固定旋转器，以在定影带和压力旋转器之间形成定影辊隙，通过该定影辊将承载调色剂图像的记录介质输送到该定影辊。 压力旋转器包括限定压力旋转体的各个侧端的轴向方向上的外径的凹部，其大于压力旋转体的轴向的中心的外径。 第一分离器在记录介质输送方向上设置在定影辊隙的下游，并与定影带的内周面接触。 第一分离器与压力旋转器隔离，并且包括与压力旋转器的凹部相对设置的突起。