公开(公告)号：US5032870A

公开(公告)日：1991-07-16

申请号：US536730

申请日：1990-06-12

申请人： Yuhi Yui ,  Yukinori Andou ,  Kouichi Irihara ,  Masatsugu Nakamura

发明人： Yuhi Yui ,  Yukinori Andou ,  Kouichi Irihara ,  Masatsugu Nakamura

IPC分类号： G03G15/02 ,  G03G15/00 ,  G03G21/00 ,  G03G21/06 ,  G03G21/08 ,  G03G21/14

CPC分类号： G03G21/08 ,  G03G21/00

摘要： An electrophotographic apparatus comprising a power supply, a detection means, a voltage control means, and an exposure unit control means, whereby the provision of a special discharge unit can be omitted to allow the reduction in the size and cost of the apparatus. Also, carrier attraction and toner adherence to the photoconductor can be prevented when the photoconductor is stopped after completion of an image forming operation.

摘要翻译： 一种电子照相设备，包括电源，检测装置，电压控制装置和曝光单元控制装置，由此可以省略设置特殊放电单元以允许减小装置的尺寸和成本。 此外，当在完成图像形成操作之后停止光电导体时，可以防止载体吸引和调色剂粘附到感光体上。

公开(公告)号：US5003350A

公开(公告)日：1991-03-26

申请号：US413171

申请日：1989-09-27

申请人： Yuhi Yui ,  Yukinori Andou ,  Kouichi Irihara

发明人： Yuhi Yui ,  Yukinori Andou ,  Kouichi Irihara

IPC分类号： G03G15/02 ,  G03G21/00

CPC分类号： G03G21/007 ,  G03G15/0266 ,  G03G15/0291

摘要： An image forming apparatus has a charger; developing device; transferring device; and cleaning device which are positioned around a photoreceptor, the cleaning device and charger being integrally formed. The charger has a control unit for controlling the surface potential of the photoreceptor to be at a predetermined level in accordance with the number of rotations, or the rotating time of the photoreceptor, and/or is designed such that a predetermined voltage is applied to the cleaning device. With the above arrangement, reproduced images having constant quality can be provided for long even if the photoreceptor is repeatedly used and discharging by the charger toward the photoreceptor can be stabilized. The advantages contribute to producing small-sized and low-priced image forming apparatus.

摘要翻译： 图像形成装置具有充电器; 开发装置; 转移装置; 以及位于感光体周围的清洁装置，清洁装置和充电器整体形成。 充电器具有控制单元，用于根据转动次数或感光体的旋转时间来控制感光体的表面电位达到预定水平，并且/或被设计成使得预定电压被施加到 清洁装置 通过上述配置，即使重复使用感光体，也可以提供具有恒定质量的再现图像，并且能够使充电器对感光体的放电稳定。 这些优点有助于生产小尺寸和低价格的成像设备。

公开(公告)号：US5189471A

公开(公告)日：1993-02-23

申请号：US534148

申请日：1990-06-06

申请人： Kouichi Irihara ,  Yukinori Andou ,  Yuhi Yui

发明人： Kouichi Irihara ,  Yukinori Andou ,  Yuhi Yui

IPC分类号： G03G15/00 ,  G03G21/00 ,  G03G21/16 ,  G03G21/18

CPC分类号： G03G21/1821 ,  G03G21/1628 ,  G03G21/1647 ,  G03G21/1676 ,  G03G21/1853 ,  G03G2221/1609 ,  G03G2221/1654 ,  G03G2221/1687 ,  G03G2221/1853 ,  G03G2221/1876

摘要： An image forming apparatus shown has a developing unit and a photoconductor unit both of which are disposed in a body. The developing unit and photoconductor unit are slidably mounted adjacent to each other within the body. The mounting and positioning of the units are such as to allow the developing unit and the photoconductor unit to be successively pulled out of the body. The apparatus further includes an urging member which allows the photoconductor unit to be urged toward the developing unit. The body includes upper and lower housings and is designed so that the upper housing can be swung upward about a fulcrum on one side of the body and thereby form an opening between the upper and lower housings on the other side of the body. The apparatus is designed and the components are configured such that when the developing unit is pulled out of the body the photoconductor unit moves toward the opening and the photoconductor unit can be replaced in a large open space near the opening.

摘要翻译： 所示的图像形成装置具有设置在主体中的显影单元和感光体单元。 显影单元和感光体单元可在主体内彼此相邻地可滑动地安装。 单元的安装和定位使得显影单元和感光体单元能够连续地拉出身体。 该装置还包括允许光电导体单元被推向显影单元的推动构件。 主体包括上壳体和下壳体，并且被设计成使得上壳体可以围绕主体的一侧上的支点向上摆动，从而在主体另一侧上的上壳体和下壳体之间形成开口。 该设备被设计并且部件被构造成使得当显影单元从主体拉出时，光电导体单元向开口移动，并且可以在开口附近的大的开放空间中更换感光体单元。

公开(公告)号：US4984018A

公开(公告)日：1991-01-08

申请号：US444311

申请日：1989-12-01

申请人： Yukinori Andou ,  Yuhi Yui ,  Kouichi Irihara

发明人： Yukinori Andou ,  Yuhi Yui ,  Kouichi Irihara

IPC分类号： G03G15/00 ,  G03G15/02 ,  G03G21/00 ,  G03G21/16 ,  G03G21/18

CPC分类号： G03G21/1814 ,  G03G15/0291 ,  G03G2221/1693 ,  G03G2221/183

摘要： A process cartridge in which at least a photosensitive member and a corona charger are mounted on a casing made of resin and the corona charger includes a shield casing and a support portion for supporting a discharge wire such that the shield casing and the support portion are molded integrally with the casing, while the corona charger is subjected, substantially at the shield casing, to an electrically conductive coating.

摘要翻译： 一种处理盒，其中至少一个感光部件和电晕充电器安装在由树脂制成的壳体上，并且电晕充电器包括屏蔽壳体和用于支撑放电线的支撑部分，使得屏蔽壳体和支撑部分被模制 与壳体一体地，而电晕充电器基本上在屏蔽壳体处被施加到导电涂层。

公开(公告)号：US5640651A

公开(公告)日：1997-06-17

申请号：US564516

申请日：1995-11-29

申请人： Keiji Katoh ,  Hiroshige Araki ,  Yasuo Imai ,  Shigeyuki Wakada ,  Eiichi Kido ,  Toshihiro Ota ,  Yuhi Yui

发明人： Keiji Katoh ,  Hiroshige Araki ,  Yasuo Imai ,  Shigeyuki Wakada ,  Eiichi Kido ,  Toshihiro Ota ,  Yuhi Yui

IPC分类号： G03G15/08 ,  G03G15/04

CPC分类号： G03G15/0896 ,  G03G15/0812 ,  G03G15/0822 ,  G03G15/0877 ,  G03G15/0891

摘要： A developer cartridge for image forming apparatuses which performs development to form images with non-magnetic, one-component type developer. The cartridge includes a developing roller for supplying developer to a photoconductor drum, a developer feed roller in non-contact with the developing roller for supply developer to the developing roller, and a developer-layer thickness control member for controlling the thickness of the developer layer on the developing roller. The developer feed roller is shaped as a regular polygonal prism. Since no recesses are formed in the surface of the regular polygonal prism, driving torque does not increase when developer is scrubbed from the prism, thus ensuring consistent operation and improved image quality. Non-magnetic, one-component type developer is compressed onto the developing roller by supplying the developer via the developer feed roller into a bottleneck between the developing roller and a developer applying member. The amount of developer which passes through the bottleneck onto the developing roller is controlled by a temporary reservoir, the pressurization thereof ensuring application of the developer to the developing roller. A control roller may be used against the developing roller to lower friction of developer, thereby preventing deposition of developer on the control roller while establishing a consistent amount of developer on the developing roller.

摘要翻译： 用于图像形成装置的显影剂盒，其用非磁性单组分型显影剂进行显影以形成图像。 盒包括用于将显影剂供应到感光鼓的显影辊，与用于向显影辊供应显影剂的显影辊非接触的显影剂供给辊以及用于控制显影剂层厚度的显影剂层厚度控制部件 在显影辊上。 显影剂供给辊的形状为正多边形棱镜。 由于在正多边形棱镜的表面没有形成凹部，所以当从棱镜上洗涤显影剂时，驱动扭矩不会增加，从而确保一致的操作和改进的图像质量。 通过将显影剂通过显影剂供给辊供给到显影辊和显影剂施加构件之间的瓶颈中，非磁性的单组分型显影剂被压缩到显影辊上。 通过瓶颈到显影辊上的显影剂的量由临时储存器控制，其加压确保将显影剂施加到显影辊上。 可以使用控制辊抵靠显影辊以降低显影剂的摩擦，从而防止显影剂在控制辊上沉积，同时在显影辊上建立一致量的显影剂。

公开(公告)号：US5412213A

公开(公告)日：1995-05-02

申请号：US54058

申请日：1993-04-29

申请人： Eiichi Kido ,  Yuhi Yui ,  Shunju Anzai ,  Syoichiro Yoshiura ,  Shinji Imagawa ,  Hiroaki Yoshida ,  Yoshikazu Kawasaki ,  Itaru Kawabata ,  Keizo Fukunaga ,  Toyokazu Mori ,  Masaru Tsuji

发明人： Eiichi Kido ,  Yuhi Yui ,  Shunju Anzai ,  Syoichiro Yoshiura ,  Shinji Imagawa ,  Hiroaki Yoshida ,  Yoshikazu Kawasaki ,  Itaru Kawabata ,  Keizo Fukunaga ,  Toyokazu Mori ,  Masaru Tsuji

IPC分类号： G03G15/02 ,  H01T19/04

CPC分类号： H01T19/04 ,  G03G15/0291 ,  G03G2215/028

摘要： A charger performs corona discharge by applying a voltage to a discharging electrode. The charger includes an electrode plate formed in the shape of a panel on the discharging electrode, a plurality of projecting portions disposed in an end portion of the electrode plate, and a plurality of projection groups formed in each of the projecting portions such that the projection groups are adjacent to each other in a thickness direction of the electrode plate.

摘要翻译： 充电器通过向放电电极施加电压来执行电晕放电。 充电器包括在放电电极上形成为板状的电极板，设置在电极板的端部中的多个突出部分和形成在每个突出部分中的多个突起组，使得突出部 组在电极板的厚度方向上彼此相邻。

公开(公告)号：US5771055A

公开(公告)日：1998-06-23

申请号：US625020

申请日：1996-03-28

申请人： Masahiko Aiba ,  Ken-ichi Morimoto ,  Kouichi Moriyama ,  Yuhi Yui ,  Tokio Awata ,  Satoshi Murakami

发明人： Masahiko Aiba ,  Ken-ichi Morimoto ,  Kouichi Moriyama ,  Yuhi Yui ,  Tokio Awata ,  Satoshi Murakami

IPC分类号： B41J2/44 ,  B41J2/47 ,  G02B5/08 ,  G02B26/10 ,  G02B26/12 ,  G03G15/04 ,  G03G21/00 ,  G03G21/20 ,  H04N1/04 ,  H04N1/113 ,  B41J2/385 ,  G03G13/04

CPC分类号： G02B26/121 ,  B41J2/471 ,  H04N1/04 ,  H04N1/1135

摘要： A novel laser printer is disclosed, in which heat generating parts are positively cooled while reducing the noise generated by a blowing mechanism. A rotor of the motor for rotating a scanning mirror of a scanning device is surrounded by a cover. An air flow inlet port and an air flow outlet port are formed on the sides of the cover. The space in the proximity of the air flow inlet port and the air flow outlet port is divided by an air flow separation member. One longitudinal end of the air flow separation member is close to the rotor and the other longitudinal end and the lateral ends thereof are connected to the cover. The air flow separation member partially divides the rotating air flow generated around the rotor in the proximity of the air flow outlet port, and generates the discharge air flow, which in turn is discharged out of the cover. A suction air flow is introduced from the air flow inlet port to the interior of the cover which is now negative in pressure, in the form of the rotating air flow.

摘要翻译： 公开了一种新颖的激光打印机，其中发热部件被积极地冷却，同时减少了由吹风机构产生的噪音。 用于旋转扫描装置的扫描反射镜的电机的转子由盖子包围。 在盖的侧面上形成有空气流入口和空气流出口。 空气流入口和空气流出口附近的空间由气流分离构件分开。 气流分离构件的一个纵向端部靠近转子，另一个纵向端部及其横向端部连接到盖子上。 空气流分离构件在气流出口附近部分地分割转子周围产生的旋转空气流，并产生排出空气流，排出空气流又从盖排出。 吸入空气流从气流入口导入到罩的内部，其现在是压力为负的旋转空气流的形式。

公开(公告)号：US5563691A

公开(公告)日：1996-10-08

申请号：US463774

申请日：1995-06-05

申请人： Takashi Hayakawa ,  Katsumi Adachi ,  Yuhi Yui

发明人： Takashi Hayakawa ,  Katsumi Adachi ,  Yuhi Yui

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

CPC分类号： G03G21/0041 ,  G03G21/0058

摘要： An image-forming apparatus including a cleaning means for selectively removing foreign matters other than developer remaining on the surface of a photoconductor drum therefrom after a transferring process. The cleaning means is provided with a foreign-matter removing roller which comes into contact with the surface of the photoconductor drum. Foreign matters, which are charged by a transferring device to have a polarity reversed to that of the charged electric potential of toner through an electric field that is exerted between the surfaces of the roller and the photoconductor drum, are allowed to adhere to the surface of the foreign-matter removing roller. As for the surface of the foreign-matter removing roller, the surface electric potential of the foreign-matter removing roller is biased farther toward the polarity of the charged toner than the surface electric potential of the photoconductor drum at the contact portion between the photoconductor drum and the foreign-matter removing roller. Thus, it becomes possible to provide an image forming apparatus which is capable of supplying images with good picture quality for a long time, by using a cleaning operation of this cleaning means.

摘要翻译： 一种图像形成装置，其包括清洁装置，用于在转印过程之后从其上选择性除去除了在感光鼓的表面上残留的显影剂之外的异物。 清洁装置设置有与感光鼓的表面接触的异物去除辊。 通过施加在辊和感光鼓的表面之间的电场，由转印装置充电以使极性与调色剂的带电电位相反的异物被允许粘附到 异物去除辊。 对于异物去除辊的表面，除了感光鼓之间的接触部分处，异物除去辊的表面电位被偏向比带电调色剂的极性更大的方式偏压于感光鼓的表面电位 和异物去除辊。 因此，可以通过使用该清洁装置的清洁操作来提供能够长时间地提供具有良好图像质量的图像的图像形成装置。

公开(公告)号：US4935777A

公开(公告)日：1990-06-19

申请号：US221666

申请日：1988-07-20

申请人： Teruhiko Noguchi ,  Yuji Okamoto ,  Yoshiharu Tsujimoto ,  Hiroshi Kinashi ,  Yuhi Yui ,  Itaru Kawabata ,  Tooru Nakata ,  Jitsuo Masuda

发明人： Teruhiko Noguchi ,  Yuji Okamoto ,  Yoshiharu Tsujimoto ,  Hiroshi Kinashi ,  Yuhi Yui ,  Itaru Kawabata ,  Tooru Nakata ,  Jitsuo Masuda

IPC分类号： G03G21/00 ,  G03G21/08

CPC分类号： G03G21/08 ,  G03G21/0094

摘要： Before a photoreceptor for an electrophotographic image forming apparatus is uniformly charged at the beginning of a process for forming a latent electrostatic image thereon, the photoreceptor is exposed to charge-removing light for stabilizing the surface potential such that a high-quality image can be obtained. The level of exposure is modified in view of the fatigue and recovery characteristics of the photoreceptor. During a continuous operation of the photoreceptor, the level is logarithmically reduced. When the photoreceptor is started again after a rest period, the initial level of exposure is adjusted by logarithmically increasing it according to the length of the rest period as well as in view of the level of exposure prior to the rest period.

摘要翻译： 在电子照相成像装置的感光体在其上形成静电潜像的处理开始时被均匀充电时，感光体暴露于电荷去除光中，以稳定表面电位，使得可以获得高质量的图像 。 考虑到感光体的疲劳和恢复特性，曝光水平被改变。 在感光体的连续操作期间，水平对数减小。 当在休息期后再次开始感光器时，根据休息期的长度以及考虑到休息期之前的暴露水平，通过对数地增加暴露的初始水平进行调整。

公开(公告)号：US4827306A

公开(公告)日：1989-05-02

申请号：US788738

申请日：1985-10-17

申请人： Yoshiharu Tsujimoto ,  Hiroshi Kinashi ,  Yuhi Yui ,  Teruhiko Noguchi ,  Itaru Kawabata

发明人： Yoshiharu Tsujimoto ,  Hiroshi Kinashi ,  Yuhi Yui ,  Teruhiko Noguchi ,  Itaru Kawabata

IPC分类号： G03G21/08 ,  G03G15/00

CPC分类号： G03G21/08

摘要： A discharging apparatus for use in a copying machine for discharging the photoreceptor layer laminated on a drum includes a short wavelength light source for producing a light having a wavelength shorter than 6000 angstrom, and a long wavelength light source for producing a light having a wavelength longer than 6200 angstrom. A control circuit is provided for controlling both light sources such that both light sources are turned on during at least one complete rotation of the drum before an exposure of a light image on the photoreceptor layer.

摘要翻译： 一种用于放置层叠在感光鼓上的感光体层的复印机中的放电装置包括用于产生波长短于6000埃的光的短波长光源和用于产生波长较长的光的长波长光源 超过6200埃。 提供控制电路用于控制两个光源，使得在光图像在感光体层上曝光之前，在鼓的至少一个完整旋转期间两个光源都被接通。