公开(公告)号：US5805965A

公开(公告)日：1998-09-08

申请号：US747760

申请日：1996-11-13

申请人： Kiyonori Tsuda ,  Seiji Oka ,  Hajime Oyama ,  Yasushi Akiba

发明人： Kiyonori Tsuda ,  Seiji Oka ,  Hajime Oyama ,  Yasushi Akiba

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0896 ,  G03G15/0898 ,  G03G15/09

摘要： A developing device of the type developing a latent image formed on an image carrier with a two-ingredient type developer, i.e., a mixture of toner and magnetic carrier particles is disclosed. The device is operable without a sophisticated toner content control mechanism or a sophisticated developer agitating and conveying mechanism, and is capable of obviating various problems ascribable to the increase in the toner content of the developer at the opposite end portions of a developer carrier. For this purpose, the device restricts the movement of a developer present on the developer carrier in the direction substantially perpendicular to the direction in which the developer carrier conveys the developer.

摘要翻译： 公开了一种使用双组分型显影剂即调色剂和磁性载体颗粒的混合物形成在图像载体上的潜像显影装置。 该装置在没有复杂的调色剂含量控制机构或复杂的显影剂搅拌和输送机构的情况下是可操作的，并且能够消除归因于显影剂载体的相对端部处的显影剂的调色剂含量增加的各种问题。 为此目的，该装置限制显影剂载体上存在的显影剂在与显影剂载体传送显影剂的方向基本垂直的方向上的移动。

公开(公告)号：US5771429A

公开(公告)日：1998-06-23

申请号：US740560

申请日：1996-10-30

申请人： Hajime Oyama ,  Seiji Oka ,  Kiyonori Tsuda ,  Yasushi Akiba

发明人： Hajime Oyama ,  Seiji Oka ,  Kiyonori Tsuda ,  Yasushi Akiba

IPC分类号： G03G15/09 ,  G03G15/08

CPC分类号： G03G15/09 ,  G03G2215/0609

摘要： A developing device for an image forming apparatus and capable of automatically controlling the toner content of a developer is disclosed. Even when the toner content of the developer deposited on a developer carrier and being conveyed toward a developing position becomes irregular due to some cause, the developer is prevented from remaining at the developing position. This guarantees a desired developing position despite the automatic toner content control. In addition, the toner content of the developer is prevented from increasing at portions adjoining the opposite ends of the developer carrier.

摘要翻译： 公开了一种用于图像形成装置并能够自动控制显影剂的调色剂含量的显影装置。 即使当显影剂载体上沉积的显影剂的调色剂含量由于某种原因而变得不均匀时，防止显影剂残留在显影位置。 这保证了所需的显影位置，尽管自动调色剂含量控制。 此外，防止显影剂的调色剂含量在与显影剂载体的相对端相邻的部分增加。

公开(公告)号：US5758241A

公开(公告)日：1998-05-26

申请号：US769628

申请日：1996-12-18

申请人： Hajime Oyama ,  Seiji Oka ,  Kiyonori Tsuda ,  Yasushi Akiba

发明人： Hajime Oyama ,  Seiji Oka ,  Kiyonori Tsuda ,  Yasushi Akiba

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0898 ,  G03G15/0896 ,  G03G15/09

摘要： A developing device for an image forming apparatus and of the type using a developer consisting of toner and magnetic particles is disclosed. While a developing sleeve conveys the developer deposited thereon, toner is automatically replenished to the developer from a toner hopper via an opening formed in the hopper due to the movement of the developer. At the same time, the toner introduced into the developer is charged by friction. A developer storing member includes a penthouse portion. A projection protrudes from the surface of the penthouse portion facing the developing sleeve toward the sleeve and extends in the direction perpendicular to the direction in which the sleeve conveys the developer. The developer forms on the sleeve a layer having stable toner content and stable toner charge without resorting to a sophisticated toner content control mechanism.

摘要翻译： 公开了一种用于图像形成装置的显影装置，以及使用由调色剂和磁性颗粒组成的显影剂的类型的显影装置。 当显影套筒传送沉积在其上的显影剂时，由于显影剂的移动，调色剂通过形成在料斗中的开口从调色剂料斗自动地补充到显影剂中。 同时，引入显影剂中的调色剂由摩擦带电。 显影剂储存构件包括顶棚部分。 突出部从朝向显影套筒的顶棚部分的表面朝向套筒突出，并且沿垂直于套筒传送显影剂的方向延伸。 显影剂在套筒上形成具有稳定的调色剂含量和稳定的调色剂电荷的层，而不需要使用复杂的调色剂含量控制机构。

公开(公告)号：US5822664A

公开(公告)日：1998-10-13

申请号：US581498

申请日：1995-12-29

申请人： Seiji Oka ,  Hajime Oyama ,  Yasushi Akiba ,  Kiyonori Tsuda

发明人： Seiji Oka ,  Hajime Oyama ,  Yasushi Akiba ,  Kiyonori Tsuda

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0896 ,  G03G2215/0609

摘要： A developing machine is provided which includes a supporting case (2); a developing sleeve (4) mounted within the supporting case (2), for carrying a developing agent (3); a magnetic roller (15) mounted within the developing sleeve (4); a projection (5d) for thinning a layer of the developing agent (3) carried on the developing sleeve (4) and regulating the amount of the developing agent (3); a drift portion A having a predetermined capacity, in which the developing agent (3) stopped by the projection (5d) drifts about; a toner containing portion (5b) having a toner supplying opening 5c which faces the developing sleeve (4) and is contiguous to the drift portion A on the upstream side of a direction in which the developing agent (3) on the developing sleeve (4) is carried; a developing agent storage case (5) attachable to and detachable from the supporting case (2), including the developing sleeve (4) and the toner containing portion (5b); and a developing agent retrieving device for a scraping the developing agent (3) lying on the developing sleeve (14) and retrieving the scraped developing agent (3) into the toner containing portion (5b).

摘要翻译： 提供一种包括支撑壳体（2）的显影机器; 安装在所述支撑壳体（2）内的用于承载显影剂（3）的显影套筒（4）; 安装在显影套筒（4）内的磁性辊（15）; 用于使承载在显影套筒（4）上的显影剂（3）的层变薄并调节显影剂（3）的量的突起（5d）; 具有由突起（5d）停止的显影剂（3）漂移的具有预定容量的漂移部分A; 调色剂容纳部分（5b）具有面向显影套筒（4）的调色剂供应开口5c，并且在显影剂套筒（4）上的显影剂（3）的方向的上游侧与漂移部分A相邻 ） 可拆卸自支撑壳体的显影剂储存盒（5），包括显影套筒（4）和调色剂容纳部分（5b）; 以及用于刮取位于显影套筒（14）上的显影剂（3）并将刮下的显影剂（3）回收到调色剂容纳部分（5b）中的显影剂回收装置。

公开(公告)号：US5659860A

公开(公告)日：1997-08-19

申请号：US538222

申请日：1995-10-03

申请人： Fumihiro Sasaki ,  Satoshi Mochizuki ,  Hidefumi Gohhara ,  Megumi Sakakura ,  Seiji Oka ,  Hajime Oyama ,  Kiyonori Tsuda ,  Yasushi Akiba

发明人： Fumihiro Sasaki ,  Satoshi Mochizuki ,  Hidefumi Gohhara ,  Megumi Sakakura ,  Seiji Oka ,  Hajime Oyama ,  Kiyonori Tsuda ,  Yasushi Akiba

IPC分类号： G03G21/16 ,  G03G9/08 ,  G03G13/09 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G13/09 ,  G03G15/087 ,  G03G9/08 ,  G03G2215/0665

摘要： In an image forming apparatus, a developing device has a developing sleeve accommodating a magnet roller therein, and a doctor for regulating the amount of developer to be conveyed to a developing position. When the developing sleeve is rotated, the part of the doctor shaved off by the doctor from the sleeve is moved in a developer storing section to a toner replenishing opening formed in a toner storing section. Then, this part of the developer is returned to the doctor along the surface of the sleeve via the toner replenishing opening. The developer consists of a first developer containing a first carrier and deposited in a layer on the surface of the sleeve, and a second developer containing a second carrier different from the first carrier and stored in the developer storing section in such a manner as to contact the first developer deposited on the sleeve. The first carrier has a higher charging ability than the second carrier. The device does not need a toner replenishing mechanism or a toner concentration sensor and has, therefore, a miniature and inexpensive construction. In addition, the device is applicable even to a high-speed image forming apparatus.

摘要翻译： 在图像形成装置中，显影装置具有容纳磁性辊的显影套筒和用于调节要被输送到显影位置的显影剂的量的刮板。 当显影套筒旋转时，由刮刀从套筒上剃掉的部分刮刀在显影剂储存部分中移动到形成在调色剂存储部分中的调色剂补充口。 然后，通过调色剂补充口将这部分显影剂沿着套筒的表面返回给医生。 显影剂包括含有第一载体并沉积在套筒表面上的层中的第一显影剂和含有不同于第一载体的第二载体的第二显影剂，并以接触的方式存储在显影剂储存部分中 沉积在套筒上的第一显影剂。 第一载体具有比第二载体更高的充电能力。 该装置不需要调色剂补充机构或调色剂浓度传感器，因此具有微型且廉价的结构。 此外，该装置甚至可应用于高速图像形成装置。

公开(公告)号：US5771426A

公开(公告)日：1998-06-23

申请号：US633687

申请日：1996-04-19

申请人： Seiji Oka ,  Kiyonori Tsuda ,  Hajime Oyama ,  Fumihiro Sasaki ,  Satoshi Mochizuki ,  Takahisa Kato

发明人： Seiji Oka ,  Kiyonori Tsuda ,  Hajime Oyama ,  Fumihiro Sasaki ,  Satoshi Mochizuki ,  Takahisa Kato

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/10 ,  G03G15/08 ,  G03G15/09 ,  G03G15/04

CPC分类号： G03G9/08 ,  G03G15/0822 ,  G03G15/0849 ,  G03G15/0856 ,  G03G15/086 ,  G03G15/0877 ,  G03G15/0891 ,  G03G15/09 ,  G03G9/0821 ,  G03G9/083 ,  G03G9/10 ,  G03G2215/0609

摘要： In a developing device for an image forming apparatus and of the type using a developer consisting of toner and magnetic carrier, a toner hopper has an opening for replenishing toner stored therein. The developer is regulated by a doctor blade to form a thin layer on a developing sleeve. The developer scraped off by the doctor blade is introduced into a developer storing chamber and caused to move toward the opening of the hopper due to its own internal pressure and gravity. The developer from the hopper is returned toward the doctor blade along the surface of the sleeve. The developer on the sleeve and regulated by the doctor blade is conveyed to a developing position where the sleeve faces an image carrier. The toner contained in the developer is a magnetic toner. When the toner concentration of the developer has reached an upper limit, a space or gap exists in the developer storing chamber.

摘要翻译： 在用于图像形成装置的显影装置中，并且使用由调色剂和磁性载体组成的显影剂的类型，调色剂料斗具有用于补充存储在其中的调色剂的开口。 显影剂由刮刀调节以在显影套筒上形成薄层。 由刮刀刮掉的显影剂被引入显影剂储存室，并由于其自身的内部压力和重力而向料斗的开口移动。 来自料斗的显影剂沿着套筒的表面返回到刮刀。 套筒上的显影剂和由刮刀调节的显影剂被传送到显影位置，其中套筒面向图像载体。 包含在显影剂中的调色剂是磁性调色剂。 当显影剂的调色剂浓度达到上限时，显影剂储存室中存在空间或间隙。

公开(公告)号：US07664446B2

公开(公告)日：2010-02-16

申请号：US10438938

申请日：2003-05-16

申请人： Hajime Oyama

发明人： Hajime Oyama

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device for fixing a toner image on a sheet with heat while conveying the sheet of the present invention includes a heat roller or rotatable heating member and a press roller or rotatable pressing member. The heat roller includes a heat-generating layer and a rigid heat-insulting layer positioned inward of the heat-generating layer. The press roller conveys the sheet by nipping it in cooperation with the heat roller.

摘要翻译： 用于在输送本发明的片材的同时将调色剂图像定影在片材上的定影装置包括加热辊或可旋转加热构件和加压辊或可旋转的按压构件。 加热辊包括位于发热层内部的发热层和刚性隔热层。 压辊通过与加热辊协作夹住纸张来传送纸张。

公开(公告)号：US20090074482A1

公开(公告)日：2009-03-19

申请号：US12204071

申请日：2008-09-04

申请人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

发明人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

IPC分类号： G03G15/20

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/1623

摘要： An intermediate transfer belt and a photosensitive member form a transfer nip. An electrode is arranged close to an inner surface of the intermediate transfer belt in a portion on an upstream side of a direction of endless movement of the intermediate transfer belt with respect to a downstream-side exit of the transfer nip and on a downstream side of the direction of endless movement with respect to a position at which a transfer roller charges the intermediate transfer belt. A voltage of same polarity as the polarity of a toner is applied to the electrode, so that there is no movement of an electric charge between the electrode and the intermediate transfer belt.

摘要翻译： 中间转印带和感光部件形成转印辊隙。 电极靠近中间转印带的内表面设置在中间转印带相对于转印辊隙的下游侧出口的环形运动方向的上游侧的一部分中，并且在下游侧 相对于转印辊对中间转印带进行充电的位置的无端运动的方向。 向电极施加与调色剂的极性相同极性的电压，使得电极和中间转印带之间不会发生电荷的移动。

公开(公告)号：US20050191095A1

公开(公告)日：2005-09-01

申请号：US11049885

申请日：2005-02-04

申请人： Katsuhiro Aoki ,  Hajime Oyama ,  Hiromitsu Takagaki ,  Hiroshi Ikeguchi

发明人： Katsuhiro Aoki ,  Hajime Oyama ,  Hiromitsu Takagaki ,  Hiroshi Ikeguchi

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G15/08

CPC分类号： G03G15/0844

摘要： A developing device includes a carrying roller configured to carry a developer. A storing section is configured to store the developer. A supplying roller is configured 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 between an outer peripheral surface of the rotor and an inner peripheral surface of the through-hole of the stator, the rotor being configured to convey the developer in the cavity in an axial direction of the rotor by eccentrically rotating. An air supplying unit is configured to supply air to the developer conveyed by the pump to scatter and fluidize the developer.

摘要翻译： 显影装置包括构造成承载显影剂的承载辊。 存储部分被配置为存储显影剂。 供给辊构造成通过使显影剂与承载辊接触而将显影剂供应到承载辊，供给辊基本上平行于承载辊延伸。 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并且螺旋地延伸的转子，使得在转子的外周面和 定子的通孔的内周面，转子构造成通过偏心旋转在转子的轴向方向上输送空腔中的显影剂。 空气供给单元构造成将空气供给到由泵输送的显影剂以使显影剂分散和流化。

公开(公告)号：US06463244B2

公开(公告)日：2002-10-08

申请号：US09814726

申请日：2001-03-23

申请人： Katsuhiro Aoki ,  Hajime Oyama ,  Takashi Hodoshima

发明人： Katsuhiro Aoki ,  Hajime Oyama ,  Takashi Hodoshima

IPC分类号： G03G1508

CPC分类号： G03G15/0808 ,  G03G2215/0634

摘要： A developing device for an image forming apparatus includes a developing roller for conveying toner deposited thereon to a developing region where it faces a photoconductive element. A magnet brush roller conveys a two-ingredient type developer, which consists of toner and magnetic particles, deposited thereto to a toner supplying region where it faces the developing roller. In the toner supplying region, only the toner is supplied from the magnet brush roller to the developing roller. The distribution of the number of toner particles for an amount of charge differs from the developing roller to the magnet brush roller.

摘要翻译： 用于图像形成装置的显影装置包括用于将沉积在其上的调色剂输送到面向感光体​​的显影区域的显影辊。 磁刷辊将由调色剂和磁性颗粒组成的双成分型显影剂输送到其面向显影辊的调色剂供应区域。 在调色剂供应区域中，只有调色剂从磁刷刷送到显影辊。 调色剂颗粒数量的分配不同于显影辊到磁刷辊。