公开(公告)号：US20240361715A1

公开(公告)日：2024-10-31

申请号：US18645389

申请日：2024-04-25

申请人： Yoshiki YAMAGUCHI ,  Hiroshi YOSHINAGA ,  Takashi SETO ,  Ryohei MATSUDA

发明人： Yoshiki YAMAGUCHI ,  Hiroshi YOSHINAGA ,  Takashi SETO ,  Ryohei MATSUDA

IPC分类号： G03G15/20

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

摘要： A heating device includes a first rotator, a second rotator, a heater, a nip formation pad, a reflector, and a shield. The second rotator faces the first rotator. The heater heats the first rotator. The nip formation pad is inside a loop of the first rotator to form a nip between the first rotator and the second rotator. The nip formation pad has a nip side face facing an inner circumferential surface of the first rotator. The reflector reflects radiant heat radiated from the heater toward the inner circumferential surface of the first rotator. The reflector contacts the nip side face of the nip formation pad. The shield contacts the reflector and shields the first rotator from the radiant heat radiated from the heater.

公开(公告)号：US20240176265A1

公开(公告)日：2024-05-30

申请号：US18523956

申请日：2023-11-30

申请人： Ryohei MATSUDA ,  Yoshiki YAMAGUCHI ,  Takashi SETO ,  Hiroshi YOSHINAGA ,  Ryohhei SUGIYAMA

发明人： Ryohei MATSUDA ,  Yoshiki YAMAGUCHI ,  Takashi SETO ,  Hiroshi YOSHINAGA ,  Ryohhei SUGIYAMA

IPC分类号： G03G15/20

CPC分类号： G03G15/2007 ,  G03G15/2064

摘要： A fixing device includes a fixing rotator, a pressure rotator, a fixing nip support, a heat source, and a reflector. The pressure rotator contacts an outer face of the fixing rotator to form a nip through which a recording medium conveyed in a conveyance direction passes. The fixing nip support has a receiving portion to receive a pressing force of the pressure rotator. The heat source inside a loop of the fixing rotator has a heat generation area having a first length in a width direction orthogonal to the conveyance direction. The reflector includes a contacting portion contacting the receiving portion of the fixing nip support and a reflecting portion facing the heat source to reflect radiant heat radiated by the heat source toward an inner face of the fixing rotator. The reflecting portion has a second length in the width direction longer than the first length.

公开(公告)号：US20170255147A1

公开(公告)日：2017-09-07

申请号：US15440179

申请日：2017-02-23

申请人： Takayuki SEKI ,  Kenji ISHll ,  Hiroshi YOSHINAGA ,  Takashi SETO ,  lppei FUJIMOTO ,  Kazunari SAWADA ,  Ryohei MATSUDA

发明人： Takayuki SEKI ,  Kenji ISHll ,  Hiroshi YOSHINAGA ,  Takashi SETO ,  lppei FUJIMOTO ,  Kazunari SAWADA ,  Ryohei MATSUDA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G15/2042 ,  G03G15/2046 ,  G03G15/2057 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator, an opposed rotator disposed opposite the fixing rotator, a pressure pad, a lateral end heater, and a thermal conduction aid. The pressure pad presses against the opposed rotator via the fixing rotator to form a fixing nip between the fixing rotator and the opposed rotator. The lateral end heater is disposed on the pressure pad to heat a lateral end of the fixing rotator in the axial direction of the fixing rotator. The thermal conduction aid is interposed between the pressure pad and the fixing rotator to decrease a temperature gradient of the fixing rotator in an axial direction of the fixing rotator. The pressure pad includes a nip-side face disposed opposite the thermal conduction aid. The lateral end heater includes a nip-side face being disposed opposite the thermal conduction aid and projecting beyond the nip-side face of the pressure pad.

公开(公告)号：US20170010570A1

公开(公告)日：2017-01-12

申请号：US15190341

申请日：2016-06-23

申请人： Ippei FUJIMOTO ,  Kazuhito KISHI ,  Takashi SETO ,  Takayuki SEKI ,  Kazunari SAWADA ,  Kenji ISHll ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Takamasa HASE ,  Yasuhiko OGINO ,  Shohta KOBASHIGAWA

发明人： Ippei FUJIMOTO ,  Kazuhito KISHI ,  Takashi SETO ,  Takayuki SEKI ,  Kazunari SAWADA ,  Kenji ISHll ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Takamasa HASE ,  Yasuhiko OGINO ,  Shohta KOBASHIGAWA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator and a heater disposed inside the fixing rotator to heat the fixing rotator with radiant heat. A pressure rotator presses against the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. A reflector is disposed opposite the heater to reflect the radiant heat radiated from the heater to the fixing rotator. The reflector includes a first parallel plane, a second parallel plane, and a third tilt plane. The second parallel plane is parallel to the first parallel plane and stepped with respect to the first parallel plane. The second parallel plane is disposed closer to the fixing nip and the heater than the first parallel plane. The third tilt plane bridges the first parallel plane and the second parallel plane and is disposed opposite the heater.

摘要翻译： 定影装置包括固定旋转器和设置在定影旋转器内部的加热器，以用辐射热加热定影旋转体。 压力旋转器压靠固定旋转器以在定影旋转器和压力旋转器之间形成定影辊隙。 反射器与加热器相对设置，以将从加热器辐射的辐射热反射到定影旋转器。 反射器包括第一平行平面，第二平行平面和第三倾斜平面。 第二平行平面平行于第一平行平面并相对于第一平行平面平行。 第二平行平面比第一平行平面更靠近定影辊隙和加热器设置。 第三倾斜平面桥接第一平行平面和第二平行平面并与加热器相对设置。

公开(公告)号：US20160274510A1

公开(公告)日：2016-09-22

申请号：US15063769

申请日：2016-03-08

申请人： Takamasa HASE ,  Susumu MATSUSAKA ,  Yasuhiko OGINO ,  Shohta KOBASHIGAWA ,  Kenji ISHII ,  Kazuhito KISHI ,  Takashi SETO ,  Hiroshi SEO ,  Ippei FUJIMOTO ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Kazunari SAWADA

发明人： Takamasa HASE ,  Susumu MATSUSAKA ,  Yasuhiko OGINO ,  Shohta KOBASHIGAWA ,  Kenji ISHII ,  Kazuhito KISHI ,  Takashi SETO ,  Hiroshi SEO ,  Ippei FUJIMOTO ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Kazunari SAWADA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A fixing device includes a primary heater, a secondary heater, and a tertiary heater to heat a primary heating span, a secondary heating span, and a tertiary heating span of a fixing rotator, respectively. A primary temperature detector and a secondary temperature detector detect a temperature of the fixing rotator. A tertiary temperature detector detects a temperature of a pressure rotator. A controller selectively performs a primary control mode to de-energize the tertiary heater and a secondary control mode to connect the secondary heater and the tertiary heater in series to energize the primary heater, the secondary heater, and the tertiary heater. The controller energizes the secondary heater and the tertiary heater in the secondary control mode based on the temperature of the fixing rotator and the pressure rotator detected by the secondary temperature detector and the tertiary temperature detector, respectively.

摘要翻译： 固定装置包括分别加热固定旋转体的主加热跨度，二次加热跨度和三次加热跨度的一次加热器，二次加热器和三次加热器。 主温度检测器和二次温度检测器检测定影旋转器的温度。 第三温度检测器检测压力旋转器的温度。 控制器选择性地执行主控制模式以使三次加热器断电，以及二次控制模式以将二次加热器和三次加热器串联连接，以使主加热器，二次加热器和三次加热器通电。 控制器基于二次温度检测器和第三温度检测器检测到的固定旋转体和压力旋转体的温度，在二次加热器和三次加热器中激励二次加热器和三次加热器。

公开(公告)号：US20160246228A1

公开(公告)日：2016-08-25

申请号：US15013827

申请日：2016-02-02

申请人： Ippei FUJIMOTO ,  Kenji ISHll ,  Kazuhito KISHI ,  Kazunari SAWADA ,  Takashi SETO ,  Susumu MATSUSAKA ,  Yasuhiko OGINO ,  Shohta KOBASHIGAWA ,  Hiromasa TAKAGI ,  Takamasa HASE ,  Hiroshi YOSHINAGA

发明人： Ippei FUJIMOTO ,  Kenji ISHll ,  Kazuhito KISHI ,  Kazunari SAWADA ,  Takashi SETO ,  Susumu MATSUSAKA ,  Yasuhiko OGINO ,  Shohta KOBASHIGAWA ,  Hiromasa TAKAGI ,  Takamasa HASE ,  Hiroshi YOSHINAGA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a first heater and a second heater to heat a fixing rotator. The first heater includes a first heat generator having a first heating span in a longitudinal direction of the first heater and a first support supporting the first heat generator. The second heater includes a second heat generator having a second heating span in a longitudinal direction of the second heater and a second support supporting the second heat generator. A screen screens one of the first heater and the second heater from another one of the first heater and the second heater. At least one of the first support and the second support is disposed in proximity to a lateral end of at least one of the first heat generator and the second heat generator in the longitudinal direction of the first heater and the second heater.

摘要翻译： 定影装置包括第一加热器和加热定影旋转器的第二加热器。 第一加热器包括第一热量发生器，其具有沿着第一加热器的纵向方向的第一加热跨度和支撑第一热发生器的第一支撑件。 第二加热器包括具有在第二加热器的纵向上的第二加热跨度的第二热发生器和支撑第二热发生器的第二支撑件。 屏幕从第一加热器和第二加热器中的另一个屏幕筛选第一加热器和第二加热器中的一个。 第一支撑件和第二支撑件中的至少一个在第一加热器和第二加热器的纵向方向上靠近第一热发生器和第二热发生器中的至少一个的侧端设置。

公开(公告)号：US20140341627A1

公开(公告)日：2014-11-20

申请号：US14269358

申请日：2014-05-05

申请人： Masaaki YOSHIKAWA ,  Takayuki SEKI ,  Yuji ARAI ,  Hiroshi YOSHINAGA ,  Ryuuichi MIMBU ,  Takuya SESHITA ,  Shuntaro TAMAKI ,  Takeshi YAMAMOTO ,  Takahiro IMADA ,  Hajime GOTOH ,  Kazuya SAITO ,  Yutaka IKEBUCHI ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Kensuke YAMAJI ,  Akira SUZUKI

发明人： Masaaki YOSHIKAWA ,  Takayuki SEKI ,  Yuji ARAI ,  Hiroshi YOSHINAGA ,  Ryuuichi MIMBU ,  Takuya SESHITA ,  Shuntaro TAMAKI ,  Takeshi YAMAMOTO ,  Takahiro IMADA ,  Hajime GOTOH ,  Kazuya SAITO ,  Yutaka IKEBUCHI ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Kensuke YAMAJI ,  Akira SUZUKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and a nip formation assembly contacting an inner circumferential surface of the fixing rotator. An opposed rotator presses against the nip formation assembly via the fixing rotator to form a fixing nip between the fixing rotator and the opposed rotator, through which a recording medium is conveyed. A support, disposed opposite the inner circumferential surface of the fixing rotator, supports the nip formation assembly. A heater, disposed opposite the inner circumferential surface of the fixing rotator, heats the fixing rotator. A reflector, disposed opposite an outer circumferential surface of the fixing rotator, reflects heat radiated from the fixing rotator onto the fixing rotator. The reflector spans a circumferential span of the fixing rotator where the fixing rotator is spaced apart from the support with a decreased interval therebetween.

摘要翻译： 定影装置包括可沿预定旋转方向旋转的定影旋转器和与定影旋转器的内圆周表面接触的压区形成组件。 相对的旋转体通过固定旋转器压靠辊隙形成组件，以在固定旋转体和相对旋转体之间形成定影辊隙，记录介质通过该固定辊隙传送。 与固定旋转体的内周面相对设置的支撑件支撑辊隙形成组件。 与定影旋转体的内周面相对设置的加热器加热固定旋转体。 与固定旋转体的外周表面相对设置的反射器将从固定旋转体辐射的热量反射到定影旋转体上。 反射器跨过固定旋转器的周向跨度，其中固定旋转体与支撑件间隔开，间隔减小。

公开(公告)号：US20140270831A1

公开(公告)日：2014-09-18

申请号：US14143253

申请日：2013-12-30

申请人： Hiroshi YOSHINAGA ,  Takayuki SEKI ,  Yuji ARAI ,  Yutaka IKEBUCHI ,  Ryuuichi MIMBU ,  Yoshiki YAMAGUCHI ,  Shuntaro TAMAKI ,  Kazuya SAITO ,  Shuutaroh YUASA ,  Toshihiko SHIMOKAWA

发明人： Hiroshi YOSHINAGA ,  Takayuki SEKI ,  Yuji ARAI ,  Yutaka IKEBUCHI ,  Ryuuichi MIMBU ,  Yoshiki YAMAGUCHI ,  Shuntaro TAMAKI ,  Kazuya SAITO ,  Shuutaroh YUASA ,  Toshihiko SHIMOKAWA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G15/2053 ,  G03G15/55 ,  G03G2215/2035

摘要： An image forming apparatus includes a fixing device including a fixing rotary body and a heater for heating the fixing rotary body. An opposed body contacts the fixing rotary body with releasable pressure therebetween to form a fixing nip therebetween through which a recording medium is conveyed. A heat shield is interposed between the heater and the fixing rotary body and movable in a circumferential direction of the fixing rotary body to shield the fixing rotary body from the heater in a variable circumferential direct heating span of the fixing rotary body where the heater is disposed opposite the fixing rotary body directly. A controller halts the heat shield instantly when a fault occurs during a print job.

摘要翻译： 图像形成装置包括固定装置，该固定装置包括固定旋转体和用于加热定影旋转体的加热器。 相对的身体与固定旋转体接触，其间具有可释放的压力，以在其间输送定影夹持物，通过该定影夹持物传送记录介质。 加热器和固定旋转体之间设置有隔热罩，并且能够在固定旋转体的圆周方向上移动，以便在加热器设置的定影旋转体的可变圆周直接加热跨度内将定影旋转体屏蔽在加热器上 直接与定影旋转体相对。 当打印作业发生故障时，控制器立即停止热屏蔽。

公开(公告)号：US20140010578A1

公开(公告)日：2014-01-09

申请号：US14022627

申请日：2013-09-10

申请人： Yasunori ISHIGAYA ,  Akira SHINSHI ,  Kenichi HASEGAWA ,  Hiroshi YOSHINAGA ,  Ryota YAMASHINA

发明人： Yasunori ISHIGAYA ,  Akira SHINSHI ,  Kenichi HASEGAWA ,  Hiroshi YOSHINAGA ,  Ryota YAMASHINA

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes a fixing member, a pressing member, a stationary member, a metal member, flanges, a first heater, and a second heater. The pressing member is rotatably pressed against an outer circumferential surface of the fixing member to form a nip therebetween. The metal member is fixedly disposed opposite an inner circumferential surface of the fixing member over an area other than the nip. The flanges are disposed at axial edges of the metal member in contact with an inner circumferential surface of the metal member. The first heater is disposed opposite the inner circumferential surface of the metal member to heat an axial middle portion of the metal member. The second heater is disposed opposite the inner circumferential surface of the metal member to heat axial end portions of the metal member. The first heater is disposed farther from the nip than the second heater.

摘要翻译： 定影装置包括固定构件，按压构件，固定构件，金属构件，凸缘，第一加热器和第二加热器。 按压构件被可旋转地压靠在固定构件的外周面上，以在它们之间形成辊隙。 金属构件与除了夹持部以外的区域相对地固定地设置在固定构件的内周面上。 凸缘设置在与金属构件的内周面接触的金属构件的轴向边缘处。 第一加热器与金属构件的内周面相对设置，以加热金属构件的轴向中间部分。 第二加热器与金属构件的内周面相对设置，以加热金属构件的轴向端部。 第一加热器布置得比第二加热器更远离辊隙。

公开(公告)号：US20110229200A1

公开(公告)日：2011-09-22

申请号：US13048160

申请日：2011-03-15

申请人： Yoshiki YAMAGUCHI ,  Akira SHINSHI ,  Kenichi HASEGAWA ,  Hiroshi YOSHINAGA ,  Naoki IWAYA ,  Ippei FUJIMOTO ,  Yutaka IKEBUCHI ,  Shuntaroh TAMAKI ,  Toshihiko SHIMOKAWA

发明人： Yoshiki YAMAGUCHI ,  Akira SHINSHI ,  Kenichi HASEGAWA ,  Hiroshi YOSHINAGA ,  Naoki IWAYA ,  Ippei FUJIMOTO ,  Yutaka IKEBUCHI ,  Shuntaroh TAMAKI ,  Toshihiko SHIMOKAWA

IPC分类号： G03G15/20

CPC分类号： G03G21/1685 ,  G03G15/2039 ,  G03G2221/1639

摘要： An image forming apparatus includes a fixing device, temperature detector, and a support member. The fixing device is removably installable in the image forming apparatus and includes a rotary fixing member to fuse a toner image on a recording medium, a fixing frame to support the fixing member, and an outer fixing cover provided to cover the fixing member and the fixing frame and having an opening from which a portion of a surface of the fixing member is exposed to the outside. The temperature detector is disposed opposing the fixing member to detect a temperature of the surface of the fixing member without contacting the fixing member when the fixing member is installed in the image forming apparatus. The support member supports the temperature detector to introduce the temperature detector into the inside of the fixing cover through the opening upon installation of the fixing member.

摘要翻译： 图像形成装置包括定影装置，温度检测器和支撑构件。 定影装置可拆卸地安装在图像形成装置中，并且包括用于将调色剂图像熔合在记录介质上的旋转固定构件，用于支撑固定构件的固定框架和设置成覆盖固定构件的外固定盖和固定 并且具有开口，固定构件的表面的一部分从该开口暴露于外部。 当固定构件安装在图像形成装置中时，温度检测器设置成与固定构件相对，以检测固定构件的表面的温度，而不接触固定构件。 支撑构件支撑温度检测器，以在固定构件安装时通过开口将温度检测器引入固定盖的内部。