公开(公告)号：US08204421B2

公开(公告)日：2012-06-19

申请号：US12753409

申请日：2010-04-02

申请人： Chikara Hiraoka ,  Yoshihiro Fukuhata

发明人： Chikara Hiraoka ,  Yoshihiro Fukuhata

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2028 ,  G03G15/206 ,  G03G2215/2009 ,  G03G2215/2035 ,  G03G2215/2061 ,  G03G2215/2064

摘要： A fusing apparatus for fusing a toner image onto a recording medium using heat and pressure includes a fusing roller; an endless pressing belt disposed opposite the fusing roller; and a pressing member for pressing the endless pressing belt onto the fusing roller. A recording medium with a transferred toner image is passed through a fusing nip between the fusing roller and the pressing belt. The fusing roller includes positive and negative crown portions along the axial direction. The pressing member includes convex and concave surface portions along the longitudinal direction. When the pressing member is pressed onto the fusing roller, the positive and negative crown portions of the fusing roller are engaged with the concave and convex surface portions, respectively, of the pressing member. The pressing member exerts a greater pressing force on the fusing roller at a central portion than at an end portion.

摘要翻译： 使用热和压力将调色剂图像定影到记录介质上的定影装置包括定影辊; 设置在定影辊对面的环状压紧带; 以及用于将环形挤压带按压到定影辊上的按压构件。 具有转印的调色剂图像的记录介质通过定影辊和加压带之间的定影辊隙。 定影辊包括沿轴向的正和负的冠部。 按压构件包括沿着纵向方向的凸表面部分和凹面部分。 当按压构件被按压到定影辊上时，定影辊的正和负冠部分别与按压构件的凹凸表面部分接合。 按压构件在中心部分比在端部处对定影辊施加更大的按压力。

公开(公告)号：US20050254866A1

公开(公告)日：2005-11-17

申请号：US11127146

申请日：2005-05-12

申请人： Shigeru Obata ,  Shunichi Oohara ,  Toshio Ogiso ,  Kenji Asuwa ,  Toru Hanashima ,  Chikara Hiraoka

发明人： Shigeru Obata ,  Shunichi Oohara ,  Toshio Ogiso ,  Kenji Asuwa ,  Toru Hanashima ,  Chikara Hiraoka

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2042

摘要： An electro-photographic apparatus for conducting printing includes a fixing member fixing an unfixed toner image on a surface of a recording medium onto the recording medium. The fixing member includes a heating roller and a pressurizing member, and a mounting member on which the pressurizing member is mounted. The pressurizing member is supported by the mounting member in a substantially center part in a longitudinal direction of the pressurizing member.

摘要翻译： 用于进行印刷的电子照相设备包括将记录介质表面上的未定影调色剂图像定影到记录介质上的固定构件。 固定构件包括加热辊和加压构件以及安装有加压构件的安装构件。 加压构件由加压构件沿加压构件的长度方向的大致中央部支承。

公开(公告)号：US6130408A

公开(公告)日：2000-10-10

申请号：US18346

申请日：1998-02-04

申请人： Hiromitsu Fukuda ,  Hidefumi Ohtsuka ,  Chikara Hiraoka ,  Shuho Yokokawa ,  Isao Nakajima ,  Yoji Hirose ,  Akihiko Yamazaki

发明人： Hiromitsu Fukuda ,  Hidefumi Ohtsuka ,  Chikara Hiraoka ,  Shuho Yokokawa ,  Isao Nakajima ,  Yoji Hirose ,  Akihiko Yamazaki

IPC分类号： G03G15/20

CPC分类号： G03G15/2007 ,  G03G15/2064 ,  G03G2215/2009 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2045

摘要： A heating belt is laid along a conveying path for a recording medium moved after development, a halogen lamp is incorporated in a belt drive roller for driving the heating belt so as to heat the heating belt by heat generated by the halogen lamp, and accordingly, the heating belt whose temperature is controlled at a predetermined temperature heats the recording sheet. With this arrangement, the conveying speed of the recording sheet and the moving speed of the heating belt are set to be equal to each other. Alternatively, the heating belt may itself generate heat.

摘要翻译： 沿着用于显影后移动的记录介质的输送路径放置加热带，在用于驱动加热带的带驱动辊中并入有卤素灯，以便通过由卤素灯产生的热量来加热加热带， 将温度控制在预定温度的加热带加热记录纸。 通过这种布置，记录纸的输送速度和加热带的移动速度被设定为彼此相等。 或者，加热带本身可以产生热量。

公开(公告)号：US5778294A

公开(公告)日：1998-07-07

申请号：US710507

申请日：1996-09-18

申请人： Chikara Hiraoka ,  Junichi Matsuno ,  Hiromitsu Fukuda

发明人： Chikara Hiraoka ,  Junichi Matsuno ,  Hiromitsu Fukuda

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2041 ,  G03G2215/2074

摘要： In a color electrophotographic apparatus, a belt fixing device which includes a pressure roller and a plurality of belt transport rollers for rotating a belt are provided for fixing unfixed toner. In the belt fixing device, a heating roller and a driving roller, which constitute the belt transport rollers, are always kept in contact with the pressure roller so that a fixing belt is curved in contact with the pressure roller, and after fused toner has been cooled, the driving roller applies pressure to the toner to separate the toner from the belt. According to this arrangement, a small-sized fixing device is achieved in which no silicone oil is needed and in which the running stability of sheets and the fixing belt is superior so that a high-quality fixed image can be obtained. A color electrophotographic apparatus using such a fixing device is also achieved.

摘要翻译： 在彩色电子照相设备中，提供一种带固定装置，其包括加压辊和用于旋转带的多个带传送辊，用于固定未定影的调色剂。 在带固定装置中，构成皮带传送辊的加热辊和驱动辊总是与加压辊保持接触，使得定影带与加压辊接触弯曲，并且在熔融调色剂已经被 驱动辊对调色剂施加压力以将调色剂与带分离。 根据该结构，实现了小型的定影装置，其中不需要硅油，其中片材和定影带的运行稳定性优异，从而可以获得高质量的固定图像。 还实现了使用这种定影装置的彩色电子照相设备。

公开(公告)号：US20080145094A1

公开(公告)日：2008-06-19

申请号：US12000165

申请日：2007-12-10

申请人： Kenji Nakamura ,  Yuichiro Suzuki ,  Katsumi Kumada ,  Shoji Takeya ,  Chikara Hiraoka

发明人： Kenji Nakamura ,  Yuichiro Suzuki ,  Katsumi Kumada ,  Shoji Takeya ,  Chikara Hiraoka

IPC分类号： G03G15/08

CPC分类号： G03G15/0894 ,  G03G2215/0872

摘要： According to an aspect of the present invention, there is provided a developing device including: a roller that develops an electric latent image formed on an image holding body; a chamber that stores a toner; a case that houses the roller and the chamber; a concave portion that is inwardly concaved from the case and that includes: a sidewall, a bottom, and a filling port formed in the bottom; and a first lid that closes the filling port.

摘要翻译： 根据本发明的一个方面，提供了一种显影装置，包括：形成在图像保持体上形成的电潜像的辊; 存储调色剂的室; 容纳辊子和腔室的情况; 从壳体向内凹入的凹部，其包括：形成在底部的侧壁，底部和填充口; 以及关闭填充口的第一盖。

公开(公告)号：US07298981B2

公开(公告)日：2007-11-20

申请号：US11175134

申请日：2005-07-07

申请人： Shunichi Oohara ,  Hiroyuki Seki ,  Toshio Ogiso ,  Shigeru Obata ,  Chikara Hiraoka ,  Toru Hanashima ,  Kazuhiro Wakamatsu

发明人： Shunichi Oohara ,  Hiroyuki Seki ,  Toshio Ogiso ,  Shigeru Obata ,  Chikara Hiraoka ,  Toru Hanashima ,  Kazuhiro Wakamatsu

IPC分类号： G03G15/00

CPC分类号： G03G15/2028 ,  G03G2215/2009 ,  G03G2215/2032 ,  G03G2215/2035

摘要： A fixing device includes a first fixing part having a heater disposed therein, a second fixing part, disposed to oppose to the first fixing part, for pinching a recording medium to form a first nip portion, a pair of transfer rollers, disposed at a downstream side of the recording medium, for forming a second nip portion, a guide for biasing the recording medium discharged from the transfer rollers towards the first fixing part side from one of the transfers rollers, and means part for biasing the guide towards the recording medium side.

摘要翻译： 定影装置包括：第一固定部，其具有设置在其中的加热器;第二固定部，设置成与第一固定部相对，用于夹持记录介质以形成第一夹持部;一对转印辊，设置在下游 记录介质的一侧，用于形成第二夹持部，用于将从转印辊排出的记录介质朝向第一固定部侧偏压的引导件，以及用于将引导件朝向记录介质侧偏压的装置部分 。

公开(公告)号：US20070048045A1

公开(公告)日：2007-03-01

申请号：US11508273

申请日：2006-08-23

申请人： Masahiro Yagi ,  Toshio Ogiso ,  Shigeru Obata ,  Chikara Hiraoka ,  Toru Hanashima ,  Osamu Saito

发明人： Masahiro Yagi ,  Toshio Ogiso ,  Shigeru Obata ,  Chikara Hiraoka ,  Toru Hanashima ,  Osamu Saito

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009 ,  G03G2215/2016 ,  G03G2215/2038

摘要： A ratio of a radius of curvature of a pressure applying member with an elastic layer, which pushes an endless belt wound around an endless heating member with pressure, in a transferring direction to a radius of curvature of an outer diameter of the heating roller is set to 1.1 or more.

摘要翻译： 将压力施加构件与弹性层的曲率半径的比率设定为沿着传送方向将缠绕在环形加热构件上的环形带材的环形带沿着加热辊的外径的曲率半径推压 至1.1以上。

公开(公告)号：US20060034646A1

公开(公告)日：2006-02-16

申请号：US11201226

申请日：2005-08-11

申请人： Chikara Hiraoka ,  Toru Hanashima ,  Masahiko Saito ,  Shunichi Oohara ,  Toshio Ogiso

发明人： Chikara Hiraoka ,  Toru Hanashima ,  Masahiko Saito ,  Shunichi Oohara ,  Toshio Ogiso

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G15/2039 ,  G03G2215/2009

摘要： To accomplish high-speed fixing which requires high-precision temperature control, or fixing of high-quality color images on various kinds of paper without increasing the size and production cost of the temperature detecting means and contaminating the back sides of paper by toner that comes off from the temperature detecting element, an image for ming device is equipped with a fixing device comprising a heating roller, a pressing belt which forcibly contacts the heating roller, and a temperature detecting means which touches the surface of the heating roller to sense the surface temperature of the heating roller, wherein a cleaning means to clean the belt surface is provided on a place which is corresponding to a place at which the contact-type thermistor touches the heating roller.

摘要翻译： 要实现需要高精度温度控制的高速定影，或在各种纸张上固定高质量彩色图像，而不增加温度检测装置的尺寸和生产成本，并通过调色剂污染纸张背面 离开温度检测元件，用于打浆装置的图像配备有定影装置，该定影装置包括加热辊，强制接触加热辊的加压带和接触加热辊的表面以感测表面的温度检测装置 加热辊的温度，其中清洁带表面的清洁装置设置在对应于接触型热敏电阻接触加热辊的位置的位置。

公开(公告)号：US20050141914A1

公开(公告)日：2005-06-30

申请号：US11010269

申请日：2004-12-14

申请人： Chikara Hiraoka ,  Toru Hanashima ,  Tetsuji Takegoshi ,  Goro Sato ,  Shogo Matsumoto

发明人： Chikara Hiraoka ,  Toru Hanashima ,  Tetsuji Takegoshi ,  Goro Sato ,  Shogo Matsumoto

IPC分类号： F16C13/00 ,  G03G15/20

CPC分类号： G03G15/2057

摘要： An image forming apparatus includes a fixing device having a pressure roller. The surface of the pressure roller is coated with a PFA resin and has an average surface roughness Ra of 0.05 to 0.13 μm. A thermister is provided to detect the surface temperature of the pressure roller. The thermister includes a metal plate, a resister element attached to the metal plate, and a pair of fluorocarbon-resin films sandwiching the metal plate and the resister element. The fluorocarbon-resin film has a thickness of 15 μm to 80 μm.

摘要翻译： 图像形成装置包括具有加压辊的定影装置。 压辊的表面涂有PFA树脂，平均表面粗糙度Ra为0.05〜0.13μm。 提供热敏电阻以检测压力辊的表面温度。 热敏电阻包括金属板，附着在金属板上的电阻元件和夹在金属板和电阻元件上的一对碳氟树脂膜。 氟碳树脂膜的厚度为15μm至80μm。

公开(公告)号：US08073375B2

公开(公告)日：2011-12-06

申请号：US12208099

申请日：2008-09-10

申请人： Chikara Hiraoka ,  Kazuhiro Wakamatsu ,  Katsumi Kumada

发明人： Chikara Hiraoka ,  Kazuhiro Wakamatsu ,  Katsumi Kumada

IPC分类号： G03G15/20 ,  G03G15/16

CPC分类号： G03G15/2032

摘要： A fixing unit where an operating force for releasing a nip can be reduced with a small-sized configuration. The fixing unit has a heating roller including a heating element, a pressure belt, pressure arms, pressure springs, and nip load releasing units. The pressure belt is supported in an intermediate position between the pressure arms 3. One end portions of the pressure arms are brought into contact with the pressure springs respectively. The other end portions of the pressure arms are brought into contact with the nip load releasing units respectively. When a load applied to the pressure belt is released by the nip load releasing units, the other end portions of the pressure arms move away from the heating roller.

摘要翻译： 可以以小型构造来减少用于释放压区的操作力的固定单元。 定影单元具有加热辊，该加热辊包括加热元件，加压带，压力臂，压力弹簧和夹持压力释放单元。 压力带被支撑在压力臂3之间的中间位置。压力臂的一个​​端部分别与压力弹簧接触。 压力臂的另一端部分别与辊隙负载释放单元接触。 当施加到压力带的负载被压区负载释放单元释放时，压力臂的另一端部远离加热辊移动。