公开(公告)号：US5459562A

公开(公告)日：1995-10-17

申请号：US249790

申请日：1994-05-26

申请人： Teruaki Mitsuya ,  Yasuyuki Tsuji ,  Yoshihiro Gunji ,  Hiroshi Hakuta ,  Yasuo Takuma

发明人： Teruaki Mitsuya ,  Yasuyuki Tsuji ,  Yoshihiro Gunji ,  Hiroshi Hakuta ,  Yasuo Takuma

IPC分类号： G03G15/20 ,  G03G15/23 ,  G03G21/00

CPC分类号： G03G15/235 ,  G03G15/2017 ,  G03G15/2021 ,  G03G15/2028 ,  G03G15/6573 ,  G03G21/206 ,  G03G2215/0059 ,  G03G2215/2083 ,  Y10S271/90

摘要： A development process and a fixing process are carried out on a front side of a recording paper. The paper recorded on the first side is transported toward a returning transportation device. The development process and the fixing process are then carried out on a back side of the paper. A nozzle for blowing out an air flow, an inverter roll for inverting the paper and the returning transportation device are arranged between the fixing station and a reversal station. The paper is deformed by the local cooling due to the air for peeling by the nozzle, the inverter roll and the returning transportation device. The portions (working regions) which receive the local cooling are arranged such that at most two of the working regions occur at any point of the recording medium paper. The inferiority of the local images in the defects in transfer and the local lowering degree in the density of the images are decreased.

摘要翻译： 在记录纸的正面进行显影处理和定影处理。 记录在第一侧的纸张朝向返回的运送装置运送。 然后在纸的背面进行显影处理和定影处理。 用于吹出空气流的喷嘴，用于翻转纸张的反转辊和返回的运送装置布置在定影台和反转台之间。 由于喷嘴，逆变器辊和返回运输装置的剥离用空气，纸被局部冷却而变形。 接收局部冷却的部分（工作区域）被布置成使得至多两个工作区域出现在记录介质纸的任何点处。 局部图像在转印缺陷中的劣势和图像密度的局部降低程度降低。

公开(公告)号：US06487384B2

公开(公告)日：2002-11-26

申请号：US09826943

申请日：2001-04-06

申请人： Hisao Okada ,  Hiroyuki Mabuchi ,  Teruaki Mitsuya ,  Shinya Kobayashi ,  Yasuo Takuma ,  Masayoshi Ishii ,  Hisayoshi Kato

发明人： Hisao Okada ,  Hiroyuki Mabuchi ,  Teruaki Mitsuya ,  Shinya Kobayashi ,  Yasuo Takuma ,  Masayoshi Ishii ,  Hisayoshi Kato

IPC分类号： G03G1509

CPC分类号： G03G13/013 ,  G03G2215/0174 ,  G03G2215/0495

摘要： In an image forming apparatus for charging a photosensitive body, changing the light exposure amount in at least three levels at exposure to light, thereby forming an electrostatic image made up of a high-potential part, a low-potential part, and an intermediate-potential part therebetween on the photosensitive body, and normally developing and inversely developing the electrostatic image using toners different in charge polarity for forming two types of toner images on the photosensitive body, a first developer used with a first toner image developing unit has electric resistance changed within 10% in the change range of applied voltage to the developer as the difference between a surface potential of the photosensitive body and a developing bias voltage.

摘要翻译： 在用于对感光体充电的图像形成装置中，在曝光时将曝光量改变为至少三个等级，从而形成由高电位部分，低电位部分和中间电极部分构成的静电图像， 在感光体上的潜在部分，并且使用不同于电荷极性的调色剂正常显影和反相显影静电图像，以在感光体上形成两种类型的调色剂图像，与第一调色剂图像显影单元一起使用的第一显影剂具有电阻改变 在作为感光体的表面电位与显影偏压之间的差异的显影剂的施加电压的变化范围内的10％以内。

公开(公告)号：US5600405A

公开(公告)日：1997-02-04

申请号：US257296

申请日：1994-06-09

申请人： Takao Umeda ,  Katsuya Kawai ,  Yosuke Saito ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Masato Miwa ,  Takashi Suzuki ,  Teruaki Mitsuya ,  Yasuo Takuma

发明人： Takao Umeda ,  Katsuya Kawai ,  Yosuke Saito ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Masato Miwa ,  Takashi Suzuki ,  Teruaki Mitsuya ,  Yasuo Takuma

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G15/161 ,  G03G15/166 ,  G03G2215/1657 ,  G03G2215/1661

摘要： A bias cleaning system has an electrically conductive brush roller for collecting toner which has to adhered a transfer belt by scrubbing the toner off the transfer belt under a condition in which a direct current voltage of the opposite polarity to the charge of the toner is applied to the brush roller. A corona charger is also provided for decreasing the amount of charge on the toner on the transfer belt in a region of the belt up-stream of the electrically conductive brush roller in the moving direction of the transfer belt.

摘要翻译： 偏置清洁系统具有用于收集调色剂的导电刷辊，该调色剂必须在将与调色剂电荷相反极性的直流电压施加到其上的条件下通过将调色剂从转印带上除去而粘附转印带 刷辊。 还提供电晕充电器，用于减小导电刷辊沿转印带移动方向的带上游区域中转印带上的调色剂上的电荷量。

公开(公告)号：US5666598A

公开(公告)日：1997-09-09

申请号：US405891

申请日：1995-03-17

申请人： Tatsuya Sugita ,  Akira Arimoto ,  Teruaki Mitsuya ,  Nobuyoshi Hoshi ,  Mamoru Okano ,  Atsushi Onose ,  Yoshito Tsunoda ,  Shinya Kobayashi ,  Seiji Maruo ,  Yasuo Takuma

发明人： Tatsuya Sugita ,  Akira Arimoto ,  Teruaki Mitsuya ,  Nobuyoshi Hoshi ,  Mamoru Okano ,  Atsushi Onose ,  Yoshito Tsunoda ,  Shinya Kobayashi ,  Seiji Maruo ,  Yasuo Takuma

IPC分类号： G03G15/34 ,  G03G15/14

CPC分类号： G03G15/344

摘要： A high-speed image forming method and apparatus is capable of directly controlling a toner by the force of an energy beam. Selected toner particles in a mass of toner adhering to the surface of a transparent drum are irradiated with a laser beam emitted by a laser disposed within the transparent drum and controlled for scanning according to image information. The laser beam separates the selected toner particles from the transparent drum by the force it produces on the particles, and then the separated toner particles are moved to a paper sheet by the force of an electric field produced by a developing electrode. Each toner particle need only be irradiated with the light for a comparatively short period of time, so that an image can be formed at high speed.

摘要翻译： 高速图像形成方法和装置能够通过能量束的力直接控制调色剂。 使用设置在透明鼓内的激光器发射的激光束照射粘附在透明鼓表面上的调色剂块中的所选调色剂颗粒，并根据图像信息被控制用于扫描。 激光束通过其在颗粒上产生的力将选择的调色剂颗粒与透明鼓分离，然后通过由显影电极产生的电场的力将分离的调色剂颗粒移动到纸张上。 每个调色剂颗粒仅需要在相当短的时间内用光照射，使得可以高速形成图像。

公开(公告)号：US20120051792A1

公开(公告)日：2012-03-01

申请号：US13137522

申请日：2011-08-24

申请人： Junichi Matsumoto ,  Tomoya Ohmura ,  Yasuo Takuma ,  Hiroshi Kikuchi ,  Natsumi Matsue

发明人： Junichi Matsumoto ,  Tomoya Ohmura ,  Yasuo Takuma ,  Hiroshi Kikuchi ,  Natsumi Matsue

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0877 ,  G03G15/0891 ,  G03G15/0893

摘要： A developing device in the embodiment includes: a developer carrier that carries a two-component developer, moves the surface, and supplies the toner to a latent image on a surface of a latent image carrier; a first conveying member that conveys the developer in a first conveying path; a second conveying member that conveys the developer in a second conveying path; and a developer passing unit that conveys upward the developer which has reached at a conveying-direction posterior end of the second conveying path and passes the developer to the first conveying path. The developer passing unit includes a plurality of pushing members that push up the developer. The developer can pass through from upper surfaces of the pushing members to lower surfaces of the pushing members.

摘要翻译： 本实施例中的显影装置包括：承载双组分显影剂的显影剂载体，使表面移动，并将调色剂供应到潜像载体的表面上的潜像; 在第一传送路径中传送显影剂的第一传送部件; 第二输送构件，其在第二输送路径中输送显影剂; 以及显影剂通过单元，其向上传送已经到达第二输送路径的输送方向后端的显影剂，并将显影剂通过到第一输送路径。 显影剂通过单元包括向上推动显影剂的多个推压构件。 显影剂可以从推动构件的上表面穿过推动构件的下表面。

公开(公告)号：US20110182610A1

公开(公告)日：2011-07-28

申请号：US13010264

申请日：2011-01-20

申请人： Tomoya OHMURA ,  Yasuo Takuma ,  Junichi Matsumoto ,  Hiroshi Kikuchi ,  Natsumi Katoh

发明人： Tomoya OHMURA ,  Yasuo Takuma ,  Junichi Matsumoto ,  Hiroshi Kikuchi ,  Natsumi Katoh

IPC分类号： G03G21/20 ,  G03G15/08

CPC分类号： G03G21/206 ,  G03G15/0848 ,  G03G15/0879 ,  G03G15/0887

摘要： A development device includes a developing section to visualize a latent image formed on a latent image carrier with developer including toner and carrier. The development device has a developer supply opening and a developer collection opening, a circulation unit to transport the developer collected from the developer collection opening of the developing section to the developer supply opening of the developing section and including a developer container to store the developer collected from the developing section disposed upstream from the development section in a direction in which the developer is circulated, and a developer cooler to cool the developer contained in the developer container.

摘要翻译： 显影装置包括显影部分，用于使具有调色剂和载体的显影剂在潜像载体上形成的潜像可视化。 显影装置具有显影剂供应开口和显影剂收集开口，循环单元，用于将从显影部分的显影剂收集开口收集的显影剂输送到显影部分的显影剂供应开口，并且包括显影剂容器以将收集的显影剂 从显影部分设置在显影剂循环方向上游的显影部分和显影剂冷却器以冷却包含在显影剂容器中的显影剂。

公开(公告)号：US07493063B2

公开(公告)日：2009-02-17

申请号：US11461167

申请日：2006-07-31

申请人： Yasuo Takuma ,  Masashi Yamamoto ,  Masanari Fujita

发明人： Yasuo Takuma ,  Masashi Yamamoto ,  Masanari Fujita

IPC分类号： G03G15/02 ,  G03G21/18

CPC分类号： G03G15/0216 ,  G03G2215/021

摘要： An image-forming device including a plurality of supporting rollers, a photosensitive belt, a pressing roller, an intermediate roller, and a charging roller. The plurality of supporting rollers includes a preselected supporting roller. The photosensitive belt is circularly movably supported on the plurality of supporting rollers. The pressing roller is disposed to contact the photosensitive belt and to press the preselected supporting roller through the photosensitive belt. The intermediate roller is disposed away from the photosensitive belt and to contact the pressing roller. The intermediate roller is rotatable following rotation of the pressing roller. The charging roller is disposed to contact both the photosensitive belt and the intermediate roller and to press the preselected supporting roller through the photosensitive belt. The charging roller is rotatable following rotation of the intermediate roller to thereby charge the photosensitive belt.

摘要翻译： 一种图像形成装置，包括多个支撑辊，感光带，加压辊，中间辊和充电辊。 多个支撑辊包括预选的支撑辊。 感光带可循环移动地支撑在多个支撑辊上。 压辊设置成与感光带接触并且通过感光带按压预选的支撑辊。 中间辊远离感光带设置并接触压辊。 中间辊可以在按压辊的旋转之后旋转。 充电辊设置成接触感光带和中间辊两者，并且通过感光带按压预选的支撑辊。 充电辊在中间辊旋转之后可旋转，从而对感光带充电。

公开(公告)号：US07463849B2

公开(公告)日：2008-12-09

申请号：US11337463

申请日：2006-01-24

申请人： Yasuo Takuma ,  Masashi Yamamoto ,  Masanari Fujita

发明人： Yasuo Takuma ,  Masashi Yamamoto ,  Masanari Fujita

IPC分类号： G03G21/00

CPC分类号： G03G21/08

摘要： An image forming apparatus includes a photosensitive member being movable in a predetermined direction; a charging roller that charges a surface of the photosensitive member; and a static pre-eliminator that eliminates static electricity by irradiating the surface of the photosensitive member with light, the static pre-eliminator located on an upstream side of the charging roller in a direction of movement of the photosensitive member; wherein an arrangement and an exposure amount of the static pre-eliminator are set to satisfy E ≦0.025×exp(t/τ) where τis a residual time constant of a photo carrier generated in the photosensitive member by the static pre-eliminator, t is a time period from a time when the photosensitive member passes through the static pre-eliminator to a time when the photosensitive member is charged by the charging roller, and E is a normalized exposure amount of the static pre-eliminator.

摘要翻译： 图像形成装置包括可沿预定方向移动的感光构件; 充电辊，其对感光构件的表面充电; 以及静电预除器，其通过用光照射感光构件的表面来消除静电，静电预除器位于充电辊的上游侧，沿着感光构件的移动方向; 其中静态预除器的布置和曝光量被设置为满足E <= 0.025×exp（t /τ），其中tau是通过静态预除器在感光构件中产生的光载体的残余时间常数，t 是从感光构件通过静电预除器到感光构件由充电辊充电的时间的时间段，E是静态预除器的归一化曝光量。

公开(公告)号：US5373351A

公开(公告)日：1994-12-13

申请号：US917709

申请日：1992-07-16

申请人： Takao Umeda ,  Tetsuya Nagata ,  Yasuo Takuma ,  Tatsuo Igawa

发明人： Takao Umeda ,  Tetsuya Nagata ,  Yasuo Takuma ,  Tatsuo Igawa

IPC分类号： G03G15/00 ,  G03G15/08 ,  G03G15/16 ,  G03G21/00

CPC分类号： G03G15/5037 ,  G03G15/08 ,  G03G15/1655 ,  G03G15/5033

摘要： A parallel circuit of a capacitor and a varistor is connected between a ground and an aluminum cap of a photosensitive drum having a photoconductor sheet wound on a surface of an aluminum drum. The capacitor is charged by a charger. A developer roll connected to a bias voltage supply is provided with a retraction mechanism and is controlled so that the developer roll is separated from the drum mechanically upon start of operation of a recording apparatus until a potential of the cap is increased to a predetermined value and a developing agent layer does not come into contact with the cap. Alternatively to retraction of the developing roll, the developing roll may be stopped to control a height of bristle of developing agent or a bias voltage of the developer may be reversed.

摘要翻译： 电容器和变阻器的并联电路连接在具有缠绕在铝鼓的表面上的感光鼓的感光鼓的接地和铝盖之间。 电容器由充电器充电。 连接到偏置电压源的显影辊具有退回机构，并被控制，使得显影辊在记录装置的操作开始时机械地与鼓分离直到盖的电位增加到预定值，并且 显影剂层不与盖接触。 替代显影辊的缩回，可以停止显影辊以控制显影剂的刷毛的高度，或显影剂的偏压可以颠倒。

公开(公告)号：US08615186B2

公开(公告)日：2013-12-24

申请号：US13401297

申请日：2012-02-21

申请人： Hiroshi Kikuchi ,  Yasuo Takuma ,  Junichi Matsumoto ,  Tomoya Ohmura

发明人： Hiroshi Kikuchi ,  Yasuo Takuma ,  Junichi Matsumoto ,  Tomoya Ohmura

IPC分类号： G03G15/08

CPC分类号： G03G15/0891 ,  G03G15/0844

摘要： A development device includes a development portion to develop a latent image; an agitation container to contain developer; a circulation system through which the developer is circulated between the development portion and the agitation container; a developer replenishing device to supply fresh developer to the agitation container; an agitator, provided inside the agitation container, to agitate and mix the developer collected from the development portion and the fresh developer from the developer replenishing device; and a developer escape chamber to discharge surplus developer in the agitation container, projecting from and continuous with the agitation container, the developer escape chamber defining a communication pathway in a side of the agitation container between the agitation container and the developer escape chamber through which the developer is moved between the agitation container and the developer escape chamber and having a discharge opening whose lower end is positioned higher than the communication pathway.

摘要翻译： 显影装置包括显影潜像的显影部分; 用于容纳显影剂的搅拌容器; 显影剂在显影部分和搅拌容器之间循环的循环系统; 用于向搅拌容器提供新鲜显影剂的显影剂补充装置; 搅拌器，设置在搅拌容器内部，搅拌并混合显影部分收集的显影剂和来自显影剂补充装置的新鲜显影剂; 显影剂逃逸室，用于排出搅拌容器中从搅拌容器突出并与搅拌容器连续的剩余显影剂，显影剂逸出室在搅拌容器和显影剂逸出室之间限定了搅拌容器侧面的连通通道， 显影剂在搅拌容器和显影剂逸出室之间移动并且具有其下端定位成高于连通路径的排出口。