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公开(公告)号：US07551882B2
公开(公告)日：2009-06-23
申请号：US11757150
申请日：2007-06-01
申请人： Takashi Seto , Takashi Fujita , Katsuaki Miyawaki , Shin Kayahara , Atsushi Nakafuji , Kazumi Suzuki , Hirohmi Tamura , Hiromitsu Takagaki
发明人： Takashi Seto , Takashi Fujita , Katsuaki Miyawaki , Shin Kayahara , Atsushi Nakafuji , Kazumi Suzuki , Hirohmi Tamura , Hiromitsu Takagaki
IPC分类号： G03G15/16
CPC分类号： G03G15/1605 , G03G15/2064 , G03G2215/0119 , G03G2215/1695
摘要： An image forming apparatus includes an image bearing member, a latent electrostatic image forming unit, a developing unit, an intermediate transferring unit which has an intermediate transfer belt and a plurality of rollers supporting the intermediate transfer belt, and a transfer fixing unit. The transfer fixing unit has a transfer fixing belt, a plurality of rollers supporting the transfer fixing belt, a heating member, and a pressurizing member forming a transfer fixing nip with the transfer fixing belt. A first roller, which is one of the plurality of rollers supporting the intermediate transferring belt, is opposite to a second roller, which is one of the plurality of rollers supporting the fixing transfer belt. The first roller and the second roller form a transfer nip between the intermediate transferring belt and the fixing transfer belt. The diameter of the first roller is smaller than the diameter of the second roller.
摘要翻译： 图像形成装置包括图像承载部件，静电潜像形成单元，显影单元，具有中间转印带的中间转印单元和支撑中间转印带的多个辊以及转印固定单元。 转印定影单元具有转印定影带，支撑转印定影带的多个辊，加热构件和与转印定影带形成转印定影辊隙的加压构件。 作为支撑中间转印带的多个辊之一的第一辊与支撑固定转印带的多个辊之一的第二辊相反。 第一辊和第二辊在中间转印带和固定转印带之间形成转印辊隙。 第一辊的直径小于第二辊的直径。
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32.发明授权Developing method, developing device, and image forming apparatus including the developing device that minimizes deterioration of developer 有权显影方法，显影装置和图像形成装置，其包括使显影剂的劣化最小化的显影装置公开(公告)号：US07359661B2
公开(公告)日：2008-04-15
申请号：US11049885
申请日：2005-02-04
IPC分类号： G03G15/08
CPC分类号： G03G15/0844
摘要： A developing device includes a carrying roller to carry a developer, a storing section to store the developer, a supplying roller to supply the developer to the carrying roller by contacting the developer to the carrying roller, the supplying roller extending substantially parallel to the carrying roller. A conveying unit is configured to convey the developer stored in the storing section to the supplying roller. The conveying unit includes a pump with a stator having a through-hole, and a rotor disposed in the through-hole of the stator and spirally extended such that a cavity to convey the developer is formed. The rotor conveys the developer in the cavity in an axial direction of the rotor. Air is supplied to the developer, conveyed by the pump to scatter and fluidize the developer.
摘要翻译： 显影装置包括承载显影剂的承载辊，存储显影剂的储存部分，通过使显影剂与承载辊接触而将显影剂供应到承载辊的供应辊，基本平行于承载辊延伸的供应辊 。 输送单元构造成将存储在存储部中的显影剂输送到供给辊。 输送单元包括具有通孔的定子的泵和设置在定子的通孔中的螺旋形延伸的转子，从而形成输送显影剂的空腔。 转子在转子的轴向方向上传送空腔中的显影剂。 向显影剂供应空气，由泵输送以使显影剂分散和流化。
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公开(公告)号：US20080008505A1
公开(公告)日：2008-01-10
申请号：US11757150
申请日：2007-06-01
申请人： Takashi SETO , Takashi Fujita , Katsuaki Miyawaki , Shin Kayahara , Atsushi Nakafuji , Kazumi Suzuki , Hirohmi Tamura , Hiromitsu Takagaki
发明人： Takashi SETO , Takashi Fujita , Katsuaki Miyawaki , Shin Kayahara , Atsushi Nakafuji , Kazumi Suzuki , Hirohmi Tamura , Hiromitsu Takagaki
CPC分类号： G03G15/1605 , G03G15/2064 , G03G2215/0119 , G03G2215/1695
摘要： An image forming apparatus includes an image bearing member, a latent electrostatic image forming unit, a developing unit, an intermediate transferring unit which has an intermediate transfer belt and a plurality of rollers supporting the intermediate transfer belt, and a transfer fixing unit. The transfer fixing unit has a transfer fixing belt, a plurality of rollers supporting the transfer fixing belt, a heating member, and a pressurizing member forming a transfer fixing nip with the transfer fixing belt. A first roller, which is one of the plurality of rollers supporting the intermediate transferring belt, is opposite to a second roller, which is one of the plurality of rollers supporting the fixing transfer belt. The first roller and the second roller form a transfer nip between the intermediate transferring belt and the fixing transfer belt. The diameter of the first roller is smaller than the diameter of the second roller.
摘要翻译： 图像形成装置包括图像承载部件，静电潜像形成单元，显影单元，具有中间转印带的中间转印单元和支撑中间转印带的多个辊以及转印固定单元。 转印定影单元具有转印定影带，支撑转印定影带的多个辊，加热构件和与转印定影带形成转印定影辊隙的加压构件。 作为支撑中间转印带的多个辊之一的第一辊与支撑固定转印带的多个辊之一的第二辊相反。 第一辊和第二辊在中间转印带和固定转印带之间形成转印辊隙。 第一辊的直径小于第二辊的直径。
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公开(公告)号：US20070212129A1
公开(公告)日：2007-09-13
申请号：US11683086
申请日：2007-03-07
申请人： Takeshi TAKEMOTO , Takashi Seto , Katsuaki Miyawaki , Takashi Fujita , Hiromitsu Takagaki , Atsuhi Nakafuji , Shin Kayahara , Hirohmi Tamura , Kazumi Suzuki
发明人： Takeshi TAKEMOTO , Takashi Seto , Katsuaki Miyawaki , Takashi Fujita , Hiromitsu Takagaki , Atsuhi Nakafuji , Shin Kayahara , Hirohmi Tamura , Kazumi Suzuki
IPC分类号： G03G15/16
CPC分类号： G03G15/162 , G03G15/161
摘要： An image transfer device provided in an image forming apparatus in which, employing an endless belt as an intermediate transfer member, image transfer is performed at nip positions of a primary transfer portion and secondary transfer portion. Generation of warp in the transferred image resulting from transmission of fluctuations in load and torque of the endless belt generated at the nip position of one transfer portion nip to the nip position of the other transfer portion is prevented. The endless belt is turned between rollers and the endless belt is individually driven at the primary transfer portion and secondary transfer portion by drive sources to generate deflection between the primary transfer portion and the secondary transfer portion.
摘要翻译： 在图像形成装置中设置有图像转印装置，其中采用环形带作为中间转印部件，在一次转印部分和二次转印部分的夹持位置进行图像转印。 防止了在一个传送部分夹持部的夹持位置处产生的环形带的传递波动的传递和另一传送部的夹持位置处产生的转印图像中的翘曲的产生。 环形带在辊之间转动，环形带在一次转印部分和二次转印部分由驱动源单独驱动，以在一次转印部分和二次转印部分之间产生偏转。
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35.发明授权Developing device, image forming apparatus and process cartridge including the developing device, and developing method 有权显影装置，图像形成装置和包括显影装置的处理盒和显影方法公开(公告)号：US07245861B2
公开(公告)日：2007-07-17
申请号：US10875316
申请日：2004-06-25
CPC分类号： G03G15/0921
摘要： A developing device includes a developer carrier that carries a developer and a developer restricting member that restricts a layer thickness of the developer on the developer carrier. The developer carrier carries the developer in such a manner that a thickness Tup of a layer of the developer when the layer passes through the developer restricting member and a gap Gd between the developer restricting member and the developer carrier satisfy an inequality 7
摘要翻译： 显影装置包括承载显影剂和显影剂限制构件的显影剂载体，其限制显影剂载体上的显影剂的层厚度。 显影剂载体以这样的方式携带显影剂，即当层通过显影剂限制构件时显影剂层的厚度Tup和显影剂限制构件和显影剂载体之间的间隙Gd满足不等式7
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公开(公告)号：US20070071511A1
公开(公告)日：2007-03-29
申请号：US11511380
申请日：2006-08-29
申请人： Kazumi Suzuki , Takashi Fujita , Hideki Kosugi , Ichiro Kadota , Atsushi Nakafuji , Hiromitsu Takagaki
发明人： Kazumi Suzuki , Takashi Fujita , Hideki Kosugi , Ichiro Kadota , Atsushi Nakafuji , Hiromitsu Takagaki
IPC分类号： G03G15/16
CPC分类号： G03G15/2064 , G03G9/0815 , G03G9/0819 , G03G9/0821 , G03G9/08755 , G03G9/08782 , G03G9/08795 , G03G9/08797 , G03G15/16 , G03G2215/0602 , G03G2215/1685
摘要： An image forming apparatus equipped with an image bearing member, a latent electrostatic image forming unit which forms a latent electrostatic image on the image bearing member, a developing unit which develops the latent electrostatic image by using a toner to form a toner image, a transfer fixing member 13 which is roll shaped or belt shaped and bears the toner image T, a heating unit 15 which heats the toner image on the transfer fixing member; and a pressurizing member 14 which is roll shaped and forms a transfer fixing nip N with the transfer fixing member. And the toner image T on the transfer fixing member is transferred and fixed simultaneously to a recording medium P which passes through the transfer fixing nip to record an image on the recording medium. At this time, the nip time, the time it takes for the recording medium to pass through the transfer fixing nip is set at 30 ms or less, the toner contains at least a binder, the binder has a main peak in an area of 5,000 to 15,000 molecular weight in a molecular weight distribution measured by GPC, the component of 30,000 or more molecular weight is 0.05% or less and a value of weight-average molecular weight (Mw)/number average molecular weight (Mn), Mw/Mn is 2 to 6.
摘要翻译： 具有图像承载部件的图像形成装置，在图像承载部件上形成静电潜像的静电潜像形成部，通过使用调色剂显影静电潜像以形成调色剂图像的显影单元，转印 固定构件13，其为辊状或带状并承载调色剂图像T;加热单元15，其加热转印固定构件上的调色剂图像; 以及加压构件14，该加压构件14是辊状的，并且与转印固定构件形成转印定影辊隙N. 并且转印固定构件上的调色剂图像T被同时转印并固定到通过转印定影辊隙的记录介质P上，以在记录介质上记录图像。 此时，将记录介质通过转印定影辊隙所需的时间设定为30ms以下，调色剂至少含有粘合剂，粘合剂的主峰面积为5,000 通过GPC测定的分子量分布为15000分子量，30,000以上分子量的成分为0.05％以下，重均分子量（Mw）/数均分子量（Mn），Mw / Mn 是2到6。
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37.发明授权公开(公告)号：US07171145B2
公开(公告)日：2007-01-30
申请号：US11349244
申请日：2006-02-08
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G2215/0634
摘要： A method of developing a latent image formed on an image carrier with toner, including causing a developer carrier, which faces the image carrier and accommodates a magnet therein, to support a developer having a toner and a magnetic carrier supporting the toner and convey the developer to a developing zone between the developer carrier and the image carrier, and providing an apparent coating ratio M of a surface of the developer carrier coated with the developer. The coating ration M is, in a zone upstream of the developing zone in a direction of rotation of the developer carrier, expressed as M=αA2+β (%), where α denotes a coefficient of the coating ratio, A2 denotes an amount of developer for a unit area, β denotes a value determined by a powder characteristic of the developer for an apparent coating ratio calculated with A2=0, and the coating ratio M is between 90% and 120%.
摘要翻译： 一种利用调色剂在图像载体上形成潜像的方法，包括使面向图像载体的显影剂载体和容纳磁体的显影剂载体支撑着具有调色剂的显影剂和支撑调色剂的磁性载体并传送显影剂 到显影剂载体和图像载体之间的显影区域，并且提供涂覆有显影剂的显影剂载体的表面的表观涂布比M. 涂层比例M在显影剂载体的旋转方向的显影区上游区域中表示为M =αA2+β（％），其中α表示涂布比的系数，A2表示 显影剂为单位面积，β表示由A2 = 0计算出的表观涂布率的显影剂的粉末特性确定的值，涂布比M在90％至120％之间。
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公开(公告)号：US07116932B2
公开(公告)日：2006-10-03
申请号：US10872438
申请日：2004-06-22
IPC分类号： G03G15/09
CPC分类号： G03G15/0921
摘要： A developing unit includes a developer containing unit that contains developer, a developer carrier that has a moving surface, and carries the developer, a magnetic force generator that attracts the developer onto the moving surface by a magnetic force generated from a plurality of magnets, and a restricting member that restricts a layer thickness of the developer. The magnets includes a restricting magnet arranged closest to the restricting member and has a restricting magnetic pole of which a first surface toward the moving surface and a second surface toward an upstream adjacent magnet that is arranged so as to be adjacent to an upstream side of the developer carrier in a direction of movement of the moving surface and has an upstream adjacent magnetic pole form a ridged corner portion, and the ridged corner portion is chamfered.
摘要翻译： 显影单元包括含有显影剂的显影剂容纳单元，具有移动表面并承载显影剂的显影剂载体，通过由多个磁体产生的磁力将显影剂吸引到移动表面上的磁力发生器，以及 限制构件，其限制显影剂的层厚度。 所述磁体包括限制磁体，所述限制磁体最靠近所述限制部件设置，并且具有限制磁极，所述限制磁极具有朝向所述移动表面的第一表面和朝向上游相邻磁体的第二表面，所述第二表面被布置成邻近所述限制部件的上游侧 显影剂载体在移动表面的移动方向上并具有上游的相邻的磁极形成脊角部分，并且脊状角部分被倒角。
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公开(公告)号：US20060008297A1
公开(公告)日：2006-01-12
申请号：US11175282
申请日：2005-07-07
IPC分类号： G03G15/08
CPC分类号： G03G15/0896 , G03G15/0875 , G03G15/0877 , G03G2215/0822 , G03G2215/0838
摘要： A developing device for developing a latent image formed on an image carrier of the present invention is generally made up of a developing section and a developer storing section. The developing section includes a developer carrier for conveying a one-component type developer deposited thereon, a feeding member for feeding the developer to the developer carrier, and a conveying member for conveying the developer toward the feeding member while agitating it. The developer storing section replenishes a developer stored therein to the developing section in a direction including at least a horizontal direction component. The developing section and developer storing section are formed with a plurality of openings in the lengthwise direction such that the replenishment of developer from the developer storing section to the developing section and the return of the developer from the latter to the former are executed via the openings.
摘要翻译： 用于显影形成在本发明的图像载体上的潜像的显影装置通常由显影部分和显影剂储存部分组成。 显影部分包括用于输送沉积在其上的单组分型显影剂的显影剂载体，用于将显影剂供给到显影剂载体的进料构件和用于在搅拌的同时将显影剂输送到进料构件的输送构件。 显影剂储存部分在至少包括水平方向分量的方向上将存储在其中的显影剂补充到显影部分。 显影部分和显影剂储存部分在长度方向上形成有多个开口，使得显影剂从显影剂储存部分向显影部分的补充和显影剂从后者向前者的返回通过开口 。
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公开(公告)号：US5493382A
公开(公告)日：1996-02-20
申请号：US44394
申请日：1993-04-08
申请人： Hiromitsu Takagaki , Shinji Kato , Hisao Murayama , Shigeru Watanabe , Mayumi Yoshida , Shunji Kato
发明人： Hiromitsu Takagaki , Shinji Kato , Hisao Murayama , Shigeru Watanabe , Mayumi Yoshida , Shunji Kato
CPC分类号： G03G21/105 , G03G15/0877 , G03G15/0896
摘要： An image forming apparatus capable of collecting a toner remaining on an image carrier after image transfer and conveying the collected toner to a developing unit to reuse it. A toner supplement roller and a toner conveyor are so controlled as to maintain the supplement of a fresh toner from a hopper to the developing unit and the supplement of the collected toner from the toner conveyor to the developing unit in a ratio lying in a predetermined range.
摘要翻译： 图像形成装置，其能够在图像转印之后收集残留在图像载体上的调色剂，并将收集的调色剂输送到显影单元以重新使用。 调色剂补充辊和调色剂输送机受到如此控制，以将新鲜调色剂从料斗的补充维持到显影单元，并将所收集的调色剂的补充物从调色剂输送器到显影单元的比例保持在预定范围内 。
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