公开(公告)号：US20170285542A1

公开(公告)日：2017-10-05

申请号：US15623085

申请日：2017-06-14

申请人： Takamasa HASE ,  Hiroshi YOSHINAGA ,  Takeshi UCHITANI ,  Yutaka IKEBUCHI ,  Takuya SESHITA ,  Shuutaroh YUASA

发明人： Takamasa HASE ,  Hiroshi YOSHINAGA ,  Takeshi UCHITANI ,  Yutaka IKEBUCHI ,  Takuya SESHITA ,  Shuutaroh YUASA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2017 ,  G03G2215/2035

摘要： A fixing device includes a rotary endless fixing belt; a nip forming member disposed in an interior of the fixing belt; a rotary opposed member to contact the nip forming member via the fixing belt to form a nip together with the fixing belt; a heat source to directly heat the fixing belt at a portion other than the nip, including at lease one heat-generation part disposed outside lateral ends of a maximum area of the fixing belt where a recording medium passes through, wherein a recording medium carrying an unfixed image is conveyed to the nip and the fixing device fixes the unfixed image onto the recording medium; and a shielding member disposed between the fixing belt and the heat generation part of the heat source and configured to shield heat from the heat source at least at an area outside the maximum passing area of the recording medium.

公开(公告)号：US20160223964A1

公开(公告)日：2016-08-04

申请号：US15010262

申请日：2016-01-29

申请人： Yutaka IKEBUCHI ,  Yasunori Ishigaya ,  Takuya Seshita ,  Kazuya Saito ,  Yamano Motoyoshi ,  Keitaro Shoji

发明人： Yutaka IKEBUCHI ,  Yasunori Ishigaya ,  Takuya Seshita ,  Kazuya Saito ,  Yamano Motoyoshi ,  Keitaro Shoji

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064

摘要： A fixing device includes a nip formation pad to form a fixing nip between a first fixing rotator and a second fixing rotator, through which a recording medium bearing a toner image is conveyed. The nip formation pad includes a first planar face, a second planar face disposed downstream from the first planar face in a recording medium conveyance direction and being parallel to the first planar face, and a joint face bridging the first planar face and the second planar face. The joint face includes a first curved portion adjoining the first planar face and having a first curvature in a first direction in which a circumferential face of the second fixing rotator is curved and a second curved portion adjoining the second planar face and having a second curvature in a second direction opposite the first direction.

摘要翻译： 定影装置包括压区形成垫，以在第一固定旋转器和第二固定旋转器之间形成定影夹持部，通过该固定旋转器传送承载调色剂图像的记录介质。 压区形成垫包括第一平面，第二平面，其在记录介质传送方向上设置在第一平面的下游并且平行于第一平面;以及接合面，桥接第一平面和第二平面 。 接合面包括与第一平面相邻的第一弯曲部分，并且具有第一方向的第一曲率，其中第二定影旋转体的周面弯曲，第二弯曲部分邻接第二平面并且具有第二曲率 与第一方向相反的第二方向。

公开(公告)号：US20150160591A1

公开(公告)日：2015-06-11

申请号：US14584728

申请日：2014-12-29

申请人： Takamasa HASE ,  Hiroshi YOSHINAGA ,  Takeshi UCHITANI ,  Yutaka IKEBUCHI ,  Takuya SESHITA ,  Shuutaroh YUASA

发明人： Takamasa HASE ,  Hiroshi YOSHINAGA ,  Takeshi UCHITANI ,  Yutaka IKEBUCHI ,  Takuya SESHITA ,  Shuutaroh YUASA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2017 ,  G03G2215/2035

摘要： A fixing device includes a rotary endless fixing belt; a nip forming member disposed in an interior of the fixing belt; a rotary opposed member to contact the nip forming member via the fixing belt to form a nip together with the fixing belt; a heat source to directly heat the fixing belt at a portion other than the nip, including at lease one heat-generation part disposed outside lateral ends of a maximum area of the fixing belt where a recording medium passes through, wherein a recording medium carrying an unfixed image is conveyed to the nip and the fixing device fixes the unfixed image onto the recording medium; and a shielding member disposed between the fixing belt and the heat generation part of the heat source and configured to shield heat from the heat source at least at an area outside the maximum passing area of the recording medium.

摘要翻译： 定影装置包括旋转环形定影带; 设置在所述定影带的内部的辊隙形成部件; 旋转对置构件，经由定影带与辊隙形成构件接触，以与定影带一起形成辊隙; 一个热源，用于直接加热该夹持部以外的部分的定影带，该热源包括设置在记录介质通过的定影带的最大面积外侧的至少一个发热部，其中， 未定影图像被传送到辊隙，并且固定装置将未定影图像固定到记录介质上; 以及屏蔽构件，其设置在所述定影带和所述热源的所述发热部之间，并且被构造成至少在所述记录介质的最大通过区域的外侧的区域处来自所述热源的热量。

公开(公告)号：US20140016972A1

公开(公告)日：2014-01-16

申请号：US13930582

申请日：2013-06-28

申请人： Takuya SESHITA ,  Hiroshi YOSHINAGA ,  Takeshi UCHITANI ,  Yutaka IKEBUCHI ,  Takamasa HASE ,  Shuutaroh YUASA

发明人： Takuya SESHITA ,  Hiroshi YOSHINAGA ,  Takeshi UCHITANI ,  Yutaka IKEBUCHI ,  Takamasa HASE ,  Shuutaroh YUASA

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a rotatable, endless belt, a stationary heater, a stationary pad, a rotatable pressure member, and a heat conductive member. The rotatable, endless belt is looped into a generally cylindrical configuration. The stationary heater is disposed inside the loop of the belt to radiate heat to the belt. The stationary pad is disposed inside the loop of the belt. The rotatable pressure member is disposed parallel to the stationary pad with the belt interposed between the pressure member and the stationary pad. The pressure member presses against the stationary pad via the belt to form a fixing nip therebetween through which a recording medium passes. The heat conductive member is interposed between the belt and the heater to transfer heat radiated from the heater by conduction therethrough to the belt.

摘要翻译： 固定装置包括可旋转的环形带，固定加热器，固定垫，可旋转压力构件和导热构件。 可旋转的环形带环绕成大致圆柱形的构造。 固定加热器设置在带的环内，以将热量辐射到带上。 固定垫设置在带的环内。 可旋转的压力构件平行于固定衬垫设置，其中带插入在压力构件和固定衬垫之间。 压力构件经由带压靠固定衬垫，以在记录介质通过该固定夹持件之间形成定影夹持部。 导热构件插入在带和加热器之间，以将从加热器辐射的热量传导通过其传送到带。

公开(公告)号：US20120051774A1

公开(公告)日：2012-03-01

申请号：US13217488

申请日：2011-08-25

申请人： Yutaka IKEBUCHI ,  Yoshiki Yamaguchi ,  Toshihiko Shimokawa ,  Kenji Ishii ,  Naoki Iwaya ,  Takahiro Imada ,  Tetsuo Tokuda ,  Takamasa Hase ,  Hiroshi Yoshinaga ,  Ippei Fujimoto ,  Masaaki Yoshikawa

发明人： Yutaka IKEBUCHI ,  Yoshiki Yamaguchi ,  Toshihiko Shimokawa ,  Kenji Ishii ,  Naoki Iwaya ,  Takahiro Imada ,  Tetsuo Tokuda ,  Takamasa Hase ,  Hiroshi Yoshinaga ,  Ippei Fujimoto ,  Masaaki Yoshikawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： An image forming apparatus includes a fixing device including a fixing member; a pressure member to press against the fixing member; and a halogen lamp to heat the fixing member, and a controller to control the halogen lamp. The controller controls an ON duty of the halogen lamp according to a control cycle, and sets the ON duty including two thresholds consisting of a first ON duty and a second ON duty that is larger than the first ON duty. The controller calculates an ON duty of the halogen lamp, judges whether the calculated ON duty is equal to or more than the first duty and less then the second duty, and changes the calculated ON duty when the calculated ON duty is equal to or more than the first duty and less then the second duty.

摘要翻译： 图像形成装置包括：固定装置，包括固定构件; 压力构件，以压靠固定构件; 以及用于加热固定构件的卤素灯，以及控制卤素灯的控制器。 控制器根据控制周期控制卤素灯的导通占空比，并且设置包括由第一导通占空比和大于第一导通占空比的第二导通占空比组成的两个阈值的导通占空比。 控制器计算卤素灯的导通占空比，判断所计算的导通占空比是否等于或大于第一占空比，小于第二占空比，并且当所计算的导通占空比等于或大于 第一责任，少于第二任。