公开(公告)号：US20240353781A1

公开(公告)日：2024-10-24

申请号：US18627461

申请日：2024-04-05

申请人： Kentaro YAMASHITA ,  Takamasa HASE ,  Arinobu YOSHIURA ,  Daisuke INOUE ,  Mototaka IWAMA ,  Ryohhei SUGIYAMA

发明人： Kentaro YAMASHITA ,  Takamasa HASE ,  Arinobu YOSHIURA ,  Daisuke INOUE ,  Mototaka IWAMA ,  Ryohhei SUGIYAMA

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/205 ,  G03G15/2064 ,  G03G15/5004 ,  G03G2215/00978 ,  G03G2215/2035

摘要： A fixing device includes a first rotator and a second rotator that form a nip therebetween and fix an image on a recording medium that enters the nip. A heater heats at least one of the first rotator or the second rotator. A controller controls the heater to switch between a first heating and a second heating, to switch from the first heating to the second heating before the recording medium enters the nip, to start the second heating at a time prior to a nip entry time at which the recording medium enters the nip by a delay time period taken for the heater to conduct heat to the nip, and to continue the first heating before the second heating for at least one control cycle at a duty cycle of power supplied to the heater. The duty cycle is not greater than 40%.

公开(公告)号：US20240310759A1

公开(公告)日：2024-09-19

申请号：US18592544

申请日：2024-03-01

申请人： Arinobu YOSHIURA ,  Takamasa HASE ,  Daisuke INOUE ,  Kentaro YAMASHITA ,  Shogo NAKAMOTO ,  Mototaka IWAMA

发明人： Arinobu YOSHIURA ,  Takamasa HASE ,  Daisuke INOUE ,  Kentaro YAMASHITA ,  Shogo NAKAMOTO ,  Mototaka IWAMA

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G15/2064

摘要： A fixing device includes a fixing rotator rotatable in a rotation direction, a heat source to heat the fixing rotator, a pressure rotator contacting the fixing rotator, a nip formation pad to form a fixing nip between the fixing rotator and the pressure rotator, a slide sheet, and an adhesive part. The slide sheet between the fixing rotator and the nip formation pad contacts an inner circumferential face of the fixing rotator. The slide sheet has a center part and both end parts in an axial direction orthogonal to the rotation direction. The adhesive part bonds the slide sheet to the nip formation pad. The adhesive part includes a first adhesive part on the center part and a second adhesive part on one of the end parts. The first adhesive part has a first area, and the second adhesive part has a second area smaller than the first area.

公开(公告)号：US20240353778A1

公开(公告)日：2024-10-24

申请号：US18637488

申请日：2024-04-17

申请人： Daisuke INOUE ,  Takamasa HASE ,  Kentaro YAMASHITA ,  Arinobu YOSHIURA ,  Shogo NAKAMOTO ,  Mototaka IWAMA

发明人： Daisuke INOUE ,  Takamasa HASE ,  Kentaro YAMASHITA ,  Arinobu YOSHIURA ,  Shogo NAKAMOTO ,  Mototaka IWAMA

IPC分类号： G03G15/20 ,  G03G15/00 ,  G03G15/01

CPC分类号： G03G15/2017 ,  G03G15/0105 ,  G03G15/0189 ,  G03G15/2064 ,  G03G15/50

摘要： An image forming apparatus includes an image forming section, a fixing device, and circuitry. The image forming section forms an image on a recording medium. The fixing device includes a rotator including a flexible endless belt, a pressure rotator pressed against the rotator to form a nip between the rotator and the pressure rotator, a heater heating the rotator, and a movable shield. The movable shield is disposed between the heater and the rotator to shield the rotator from radiant heat generated from the heater and is movable according to a size of the recording medium. The circuitry is configured to control the image forming section to form the image on the recording medium based on an image forming condition and change at least one of an operating temperature of the movable shield or a shielding amount of the movable shield based on the image forming condition.

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.

公开(公告)号：US20130209125A1

公开(公告)日：2013-08-15

申请号：US13751922

申请日：2013-01-28

申请人： Takeshi UCHITANI ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Takahiro IMADA ,  Hiromasa TAKAGI ,  Kazuya SAITO ,  Naoki IWAYA ,  Toshihiko SHIMOKAWA ,  Kensuke YAMAJI ,  Teppei KAWATA ,  Takamasa HASE ,  Takuya SESHITA ,  Shuutaroh YUASA ,  Arinobu YOSHIURA ,  Hajime GOTOH ,  Akira SUZUKI ,  Hiroshi YOSHINAGA

发明人： Takeshi UCHITANI ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Takahiro IMADA ,  Hiromasa TAKAGI ,  Kazuya SAITO ,  Naoki IWAYA ,  Toshihiko SHIMOKAWA ,  Kensuke YAMAJI ,  Teppei KAWATA ,  Takamasa HASE ,  Takuya SESHITA ,  Shuutaroh YUASA ,  Arinobu YOSHIURA ,  Hajime GOTOH ,  Akira SUZUKI ,  Hiroshi YOSHINAGA

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device for fixing an unfixed image onto a recording medium includes a fixing belt, a nip forming member, an opposing rotary member, a heater, and a temperature detector. The fixing belt is formed into a loop to move endlessly and fix the unfixed image on the recording medium. The nip forming member is disposed inside the loop formed by the fixing belt. The opposing rotary member contacts the nip forming member via the fixing belt to form a nip portion therebetween while rotating. The heater heats the fixing belt at a place other than the nip portion. The temperature detector detects a temperature of the surface of the fixing belt. The temperature detector detects the temperature near a place of the fixing belt that easily deforms as the fixing belt is heated by the heater.

摘要翻译： 用于将未定影图像固定到记录介质上的定影装置包括定影带，辊隙形成构件，相对旋转构件，加热器和温度检测器。 将定影带形成为环状以循环移动并将未定影图像固定在记录介质上。 辊隙形成构件设置在由定影带形成的环内。 相对的旋转构件经由定影带与辊隙形成构件接触，在旋转的同时在其间形成夹持部。 加热器将定影带加热到夹持部以外的位置。 温度检测器检测定影带的表面的温度。 温度检测器检测定影带靠近加热器加热定影带时容易变形的位置附近的温度。

公开(公告)号：US20150227095A1

公开(公告)日：2015-08-13

申请号：US14693550

申请日：2015-04-22

申请人： Takeshi UCHITANI ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Takahiro IMADA ,  Hiromasa TAKAGI ,  Hiroshi YOSHINAGA ,  Arinobu YOSHIURA ,  Teppei KAWATA ,  Takamasa HASE ,  Hajime GOTOH ,  Takuya SESHITA ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Kensuke YAMAJI ,  Shuutaroh YUASA ,  Akira SUZUKI ,  Shinichi NAMEKATA ,  Ryota YAMASHINA ,  Yasunori ISHIGAYA

发明人： Takeshi UCHITANI ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Takahiro IMADA ,  Hiromasa TAKAGI ,  Hiroshi YOSHINAGA ,  Arinobu YOSHIURA ,  Teppei KAWATA ,  Takamasa HASE ,  Hajime GOTOH ,  Takuya SESHITA ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Kensuke YAMAJI ,  Shuutaroh YUASA ,  Akira SUZUKI ,  Shinichi NAMEKATA ,  Ryota YAMASHINA ,  Yasunori ISHIGAYA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/205 ,  G03G2215/2035

摘要： A fixing device capable of shifting to a sleep state includes a heat source; a rotatable fixing member that is partly heated by the heat source to heat an unfixed image carrying surface of a recording medium; a rotatable pressing member that is in pressure contact with the fixing member to form a nip portion between the pressing member and the fixing member; a rotation drive unit that directly or indirectly rotates the fixing member; a temperature detecting unit that detects a temperature of the fixing member; and a controller configured to prohibit the fixing device from shifting to the sleep state when the temperature of the fixing member in a region facing the heat source is equal to or more than a predetermined temperature T1 at a point when a predetermined time period t1 has elapsed from the stop of rotation drive of the rotation drive unit.

摘要翻译： 能够转移到睡眠状态的固定装置包括热源; 可旋转的固定构件，其被热源部分地加热以加热记录介质的未固定的图像承载表面; 与所述固定部件压力接触以在所述按压部件和所述固定部件之间形成夹持部的旋转按压部件; 旋转驱动单元，其直接或间接地旋转所述固定构件; 温度检测单元，其检测所述固定构件的温度; 以及控制器，被配置为当经过预定时间段t1的时刻，当面向热源的区域中的固定构件的温度等于或大于预定温度T1时，禁止定影装置转移到睡眠状态 从旋转驱动单元的旋转驱动停止。

公开(公告)号：US20150212459A1

公开(公告)日：2015-07-30

申请号：US14682509

申请日：2015-04-09

申请人： Takamasa HASE ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Tadashi OGAWA ,  Takeshi UCHITANI ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Teppei KAWATA ,  Takuya SESHITA ,  Arinobu YOSHIURA ,  Takahiro IMADA ,  Hajime GOTOH ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Kensuke YAMAJI ,  Akira SUZUKI

发明人： Takamasa HASE ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Tadashi OGAWA ,  Takeshi UCHITANI ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Teppei KAWATA ,  Takuya SESHITA ,  Arinobu YOSHIURA ,  Takahiro IMADA ,  Hajime GOTOH ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Kensuke YAMAJI ,  Akira SUZUKI

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2039 ,  G03G2215/2035

摘要： A fixing device including a fixing member, an opposing member, a plurality of heat sources, and a voltage detector. The opposing member is disposed opposite the fixing member to contact the fixing member to form a nip portion at which an unfixed image on a recording medium is fixed. The plurality of heat sources heats the fixing member. The voltage detector detects an applied voltage of at least one of the plurality of heat sources. Upon detection of the applied voltage of the heat sources by the voltage detector, a voltage is applied to at least one of the heat sources.

摘要翻译： 一种固定装置，包括固定构件，相对构件，多个热源和电压检测器。 相对构件与固定构件相对地设置以接触固定构件，以形成固定有记录介质上的未定影图像的夹持部。 多个热源加热固定部件。 电压检测器检测多个热源中的至少一个的施加电压。 在通过电压检测器检测到热源的施加电压时，向至少一个热源施加电压。

公开(公告)号：US20130209119A1

公开(公告)日：2013-08-15

申请号：US13747906

申请日：2013-01-23

申请人： Shuutaroh YUASA ,  Takeshi UCHITANI ,  Takamasa HASE ,  Takuya SESHITA ,  Hiroshi YOSHINAGA ,  Kenji ISHII ,  Tadashi OGAWA ,  Arinobu YOSHIURA ,  Teppei KAWATA ,  Toshihiko SHIMOKAWA ,  Kensuke YAMAJI ,  Masaaki YOSHIKAWA ,  Masahiko SATOH ,  Hiromasa TAKAGI ,  Takahiro IMADA ,  Hajime GOTOH ,  Akira SUZUKI ,  Shinichi NAMEKATA ,  Kazuya SAITO

发明人： Shuutaroh YUASA ,  Takeshi UCHITANI ,  Takamasa HASE ,  Takuya SESHITA ,  Hiroshi YOSHINAGA ,  Kenji ISHII ,  Tadashi OGAWA ,  Arinobu YOSHIURA ,  Teppei KAWATA ,  Toshihiko SHIMOKAWA ,  Kensuke YAMAJI ,  Masaaki YOSHIKAWA ,  Masahiko SATOH ,  Hiromasa TAKAGI ,  Takahiro IMADA ,  Hajime GOTOH ,  Akira SUZUKI ,  Shinichi NAMEKATA ,  Kazuya SAITO

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/205 ,  G03G2215/2035

摘要： A fixing device includes a controller connected to a heater and at least one of a pressing rotary body and an endless rotary body. The controller performs a first fixing operation, a first transition operation, a second fixing operation, and a second transition operation. The first fixing operation fixes a toner image on a first recording medium after the fixing device is powered on. The first transition operation rotates the pressing rotary body and the endless rotary body while controlling the heater to maintain the endless rotary body at a predetermined temperature for a first duration time. The second fixing operation fixes a toner image on a second recording medium. The second transition operation rotates the pressing rotary body and the endless rotary body while controlling the heater to maintain the endless rotary body at the predetermined temperature for a second duration time smaller than the first duration time.

摘要翻译： 定影装置包括连接到加热器和压紧旋转体和环形旋转体中的至少一个的控制器。 控制器执行第一定影操作，第一转换操作，第二定影操作和第二转换操作。 第一固定操作在定影装置通电之后将调色剂图像定影在第一记录介质上。 第一过渡操作使加压旋转体和环形旋转体一起旋转，同时控制加热器，以将永久旋转体保持在预定温度下持续第一持续时间。 第二定影操作将调色剂图像固定在第二记录介质上。 第二过渡操作在控制加热器的同时使压制旋转体和环形旋转体旋转，将环形旋转体保持在预定温度下，持续时间小于第一持续时间。

公开(公告)号：US20130202320A1

公开(公告)日：2013-08-08

申请号：US13744883

申请日：2013-01-18

申请人： Takamasa HASE ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Tadashi OGAWA ,  Takeshi UCHITANI ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Teppei KAWATA ,  Takuya SESHITA ,  Arinobu YOSHIURA ,  Takahiro IMADA ,  Hajime GOTOH ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Kensuke YAMAJI ,  Akira SUZUKI

发明人： Takamasa HASE ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Tadashi OGAWA ,  Takeshi UCHITANI ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Teppei KAWATA ,  Takuya SESHITA ,  Arinobu YOSHIURA ,  Takahiro IMADA ,  Hajime GOTOH ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Kensuke YAMAJI ,  Akira SUZUKI

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2039 ,  G03G2215/2035

摘要： A fixing device including a fixing member, an opposing member, a plurality of heat sources, and a voltage detector. The opposing member is disposed opposite the fixing member to contact the fixing member to form a nip portion at which an unfixed image on a recording medium is fixed. The plurality of heat sources heats the fixing member. The voltage detector detects an applied voltage of at least one of the plurality of heat sources. Upon detection of the applied voltage of the heat sources by the voltage detector, a voltage is applied to at least one of the heat sources.

公开(公告)号：US20130195525A1

公开(公告)日：2013-08-01

申请号：US13751648

申请日：2013-01-28

申请人： Hiroshi YOSHINAGA ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Takuya SESHITA ,  Takahiro IMADA ,  Hajime GOTOH ,  Akira SUZUKI ,  Teppei KAWATA ,  Toshihiko SHIMOKAWA ,  Arinobu YOSHIURA ,  Takamasa HASE ,  Takeshi UCHITANI ,  Shuutaroh YUASA ,  Kensuke YAMAJI

发明人： Hiroshi YOSHINAGA ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Takuya SESHITA ,  Takahiro IMADA ,  Hajime GOTOH ,  Akira SUZUKI ,  Teppei KAWATA ,  Toshihiko SHIMOKAWA ,  Arinobu YOSHIURA ,  Takamasa HASE ,  Takeshi UCHITANI ,  Shuutaroh YUASA ,  Kensuke YAMAJI

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 fixing belt; a nip forming member arranged inside the fixing belt; a facing rotating body that abuts the nip forming member via the fixing belt to form a nip portion with the fixing belt; a heat source that directly heats up the fixing belt at a portion other than the nip portion; and a supporting member that supports the nip forming member. The fixing device conveys a recording medium carrying an unfixed image to the nip portion to fix the unfixed image to the recording medium, and the supporting member includes a rising portion extending in an abutting direction of the facing rotating body against the fixing belt and having a tip close to an inner circumferential surface of the fixing belt, and is set to have a section modulus of 200 mm3 or higher.

摘要翻译： 定影装置包括：可旋转的环形定影带; 布置在定影带内的辊隙形成构件; 面向旋转体，其经由定影带邻接辊隙形成构件以与定影带形成咬合部; 在夹持部以外的部分直接加热定影带的热源; 以及支撑所述辊隙形成构件的支撑构件。 定影装置将携带未定影图像的记录介质传送到夹持部分，以将未定影图像固定到记录介质上，并且支撑构件包括沿相对的旋转体抵靠定影带的邻接方向延伸的上升部分，并且具有 尖端靠近定影带的内圆周表面，并且被设定为具有200mm 3或更高的截面模数。