公开(公告)号：US6025859A

公开(公告)日：2000-02-15

申请号：US788319

申请日：1996-12-24

申请人： Atsushi Ide ,  Hideo Yamasa ,  Yoichi Yamamoto

发明人： Atsushi Ide ,  Hideo Yamasa ,  Yoichi Yamamoto

IPC分类号： B41J2/465 ,  B41J2/415 ,  B41J2/385 ,  G03G13/04

CPC分类号： B41J2/465

摘要： An image forming apparatus includes a grating light valve (GLV) optical modulating device for modulating light projected by a monochromatic light source unit so that the light thus modulated is projected onto a photosensitive drum. This arrangement enables printing at a higher speed and high-quality printing using half tone. In the GLV optical modulator, a first GLV element row and a second GLV element row, each having a plurality of GLV elements provided at spaces, each space being smaller than a width of each GLV element, are provided parallel so that GLV elements constituting the first and second element rows are provided in a staggered manner.

摘要翻译： 图像形成装置包括用于调制由单色光源单元投影的光的光栅光阀（GLV）光调制装置，使得如此调制的光被投影到感光鼓上。 这种布置使得能够以更高的速度打印，并且使用半色调进行高质量的打印。 在GLV光调制器中，平行设置第一GLV元件行和第二GLV元件行，每个GLV元素行具有设置在空间处的多个GLV元件，每个空间小于每个GLV元件的宽度，使得构成 以交错的方式提供第一和第二元件行。

公开(公告)号：US5459555A

公开(公告)日：1995-10-17

申请号：US77988

申请日：1993-06-15

申请人： Hideo Yamasa ,  Fumio Shimazu ,  Koichi Inui ,  Shirou Wakahara ,  Yuuhi Yui ,  Eiichi Kido ,  Hiromu Yoshimoto

发明人： Hideo Yamasa ,  Fumio Shimazu ,  Koichi Inui ,  Shirou Wakahara ,  Yuuhi Yui ,  Eiichi Kido ,  Hiromu Yoshimoto

IPC分类号： B41J2/44 ,  G03G15/00 ,  G03G15/02 ,  G03G15/04 ,  G03G15/043 ,  G03G15/047 ,  G03G15/06 ,  G03G15/16 ,  G03G21/00 ,  G03G21/08 ,  G03G21/14 ,  G03G15/18

CPC分类号： G03G21/08 ,  G03G15/1675

摘要： An image forming apparatus provides a photosensitive body, a main charger, an exposing unit, developing unit and a contact-transfer charger. The main charger charges the photosensitive body with a predetermined electric potential. The exposing unit applies a laser beam on the surface of the photosensitive body to form an electric latent image. The developing unit develops the electrostatic latent image to form a toner image. The contact-transfer charger transfers the toner image on an image transfer paper. The image forming apparatus further provides controller for power supplies. The controller controls the power supplies after an image forming operation in a manner to enhance the electric potential of the photosensitive body to a high level by the main charger, drop the surface potential of the photosensitive body to a low level by the contact-transfer charger and then to cut off a bias voltage of the developing unit.

摘要翻译： 图像形成装置提供感光体，主充电器，曝光单元，显影单元和接触转印充电器。 主充电器以预定电位对感光体充电。 曝光单元在感光体的表面上施加激光束以形成电潜像。 显影单元显影静电潜像以形成调色剂图像。 接触转印充电器将图像转印纸上的调色剂图像转印。 图像形成装置还提供用于电源的控制器。 控制器以图像形成操作的方式控制电源，以通过主充电器将感光体的电位提高到高电平，通过接触转印充电器将感光体的表面电位降至较低水平 然后切断显影单元的偏置电压。

公开(公告)号：US6097410A

公开(公告)日：2000-08-01

申请号：US139789

申请日：1998-08-25

申请人： Hideo Yamasa ,  Kouichi Irihara

发明人： Hideo Yamasa ,  Kouichi Irihara

IPC分类号： B41J2/385 ,  B41J2/06 ,  G03G15/05

CPC分类号： B41J2/06 ,  B41J2002/061

摘要： An image forming apparatus includes an ink tank accommodating chargeable developer ink, an ink control layer having a plurality of ink supply holes arranged in a matrix, arranged near the surface of the developer ink and having a lower portion opened in the developer ink, a potential control layer arranged above the ink control layer and having a plurality of ink passage holes arranged in the column direction of the ink supply holes, an opposing electrode arranged opposing to the potential control layer, a power supply unit for applying a potential to the developer ink and an opposing electrode to generate a prescribed potential difference between the developer ink and an opposing electrode, a surface level controller for changing surface level of the developer ink in the ink supply holes for each column of the ink supply holes, and an emission controller for controlling potential of each row of the ink supply holes in the ink passage holes of the potential control layer for controlling ink emission dot by dot.

摘要翻译： 图像形成装置包括容纳可充电的显影剂墨水的墨水容器，具有布置在矩阵中的多个供墨孔的墨水控制层，布置在显影剂墨水的表面附近并且具有在显影剂墨水中打开的下部， 控制层，布置在墨水控制层上方，并且具有沿着墨水供应孔的列方向布置的多个墨水通孔，与电位控制层相对布置的相对电极，用于向显影剂墨水施加电位的电源单元 以及用于在显影剂墨水和相对电极之间产生规定电位差的相对电极，用于改变每列供墨孔的供墨孔中的显影剂墨水的表面水平的表面电平控制器，以及用于 控制用于控制的电位控制层的墨水通过孔中的每排墨水供应孔的电位 g点墨点墨。

公开(公告)号：US5572300A

公开(公告)日：1996-11-05

申请号：US208431

申请日：1994-03-09

申请人： Hideo Yamasa ,  Yasuhiro Takai ,  Atsushi Ueda ,  Hirokazu Tanaka

发明人： Hideo Yamasa ,  Yasuhiro Takai ,  Atsushi Ueda ,  Hirokazu Tanaka

IPC分类号： G03G15/08 ,  G03G21/10

CPC分类号： G03G15/0844 ,  G03G15/0822 ,  G03G2215/0822

摘要： The present invention provides in a preferred embodiment a developer container having a supply and discharge shaft which is driven and rotated in a direction by a supply and discharge shaft motor, a supply screw mounted on one of the ends of the supply and discharge shaft for bringing unused developer in a developer supply container into a developer container, and a discharge screw mounted on the other end of the supply and discharge shaft for discharging the developer in the developer container through a developer discharge opening. With this structure, the ratio of replacing old developer with new developer in the developer container is controlled in the desired manner, and the charging property of the developer is maintained substantially uniform. Additionally, since the replacement efficiency of the developer is improved, the consumption of the developer is reduced. Moreover, even when a copying machine is tilted, a large amount of developer is unlikely to be discharged.

摘要翻译： 本发明在优选实施例中提供了一种显影剂容器，该容器具有一供给排出轴，该排放轴由一供给排出轴电动机驱动并沿一方向旋转;供给螺钉，其安装在供排排轴的一端上， 显影剂供应容器中的未使用的显影剂进入显影剂容器，以及安装在供排排轴的另一端的排出螺杆，用于通过显影剂排出口排出显影剂容器中的显影剂。 利用这种结构，以期望的方式控制在显影剂容器中更换旧显影剂与新显影剂的比例，并且显影剂的带电性能保持基本均匀。 此外，由于显影剂的替换效率提高，因此显影剂的消耗降低。 此外，即使当复印机倾斜时，大量的显影剂也不太可能被排出。

公开(公告)号：US6049345A

公开(公告)日：2000-04-11

申请号：US572412

申请日：1995-12-14

申请人： Yukihito Nishio ,  Shiro Narikawa ,  Hirokazu Fujita ,  Yoshinobu Okumura ,  Hideo Yamasa ,  Takeshi Iriuchijima

发明人： Yukihito Nishio ,  Shiro Narikawa ,  Hirokazu Fujita ,  Yoshinobu Okumura ,  Hideo Yamasa ,  Takeshi Iriuchijima

IPC分类号： G03G15/05 ,  B41J2/385 ,  G03G15/08 ,  G03G15/34 ,  B41J2/39 ,  B41J2/395 ,  B41J2/40 ,  G03G15/00

CPC分类号： G03G15/348

摘要： A doctor blade is provided in contact with frictionally charged toner in a toner tank, which regulates the amount of toner held on a toner holder. A charge control unit supplies to the doctor blade a voltage for selectively charging the toner. As a result, the amount of toner held on the toner holder is regulated, and simultaneously, the toner is charged to a specific polarity with a potential of the frictional charge or more. An electrostatic latent image is formed by the selectively charged toner. The toner is moved and transferred onto a papersheet which is sequentially transported, under the influence of an electric field generated by application of a voltage to an opposite electrode disposed opposing the toner holder. An image by the toner is thus formed on the papersheet.

摘要翻译： 提供刮墨刀与调色剂罐中的摩擦带电的调色剂接触，调色剂保持在调色剂保持器上的调色剂量。 充电控制单元向刮刀提供用于选择性地对调色剂充电的电压。 结果，保持在调色剂保持器上的调色剂的量被调节，并且同时，调色剂以摩擦电荷的电位或更多的电位被充电到特定的极性。 通过选择性带电的调色剂形成静电潜像。 将调色剂移动并转移到纸张上，该纸张在通过将电压施加到与调色剂保持器相对设置的相对电极产生的电场的影响下被依次传送。 因此，在纸张上形成由调色剂形成的图像。

公开(公告)号：US5430532A

公开(公告)日：1995-07-04

申请号：US207294

申请日：1994-03-07

申请人： Atsushi Ueda ,  Yasuhiro Takai ,  Hirokazu Tanaka ,  Hideo Yamasa ,  Kouichi Irihara

发明人： Atsushi Ueda ,  Yasuhiro Takai ,  Hirokazu Tanaka ,  Hideo Yamasa ,  Kouichi Irihara

IPC分类号： G03G15/08

CPC分类号： G03G15/0844 ,  G03G15/08 ,  G03G15/0856 ,  G03G15/0862

摘要： A developing device is provided with a developer vessel for storing therein a developer material composed of toner particles and carrier granules and a developer material supply section for gradually supplying a carrier developer including the carrier granules from above the developer vessel, wherein a discharge opening for discharging therethrough the developer material is formed on a side face of the developer vessel. When a tilt detection unit provided with the developing device detects the tilt of the developing device, an alarm lamp is set ON for sending a warning. In the meantime, the discharge opening is closed for preventing an excessive overflow of the developer material from the developer vessel.

摘要翻译： 显影装置设置有用于在其中存储由调色剂颗粒和载体颗粒组成的显影剂材料的显影剂容器和用于从显影剂容器的上方逐渐地供应包含载体颗粒的载体显影剂的显影剂供应部分，其中用于排出的排出开口 显影剂材料通过其形成在显影剂容器的侧面上。 当设置有显影装置的倾斜检测单元检测到显影装置的倾斜时，将报警灯设置为ON以发送警告。 同时，排出口关闭以防止显影剂材料从显影剂容器中过度溢出。

公开(公告)号：US5598252A

公开(公告)日：1997-01-28

申请号：US500597

申请日：1995-07-11

申请人： Hideo Yamasa ,  Fumio Shimazu ,  Koichi Inui ,  Shirou Wakahara ,  Yuuhi Yui ,  Eiichi Kido ,  Hiromu Yoshimoto

发明人： Hideo Yamasa ,  Fumio Shimazu ,  Koichi Inui ,  Shirou Wakahara ,  Yuuhi Yui ,  Eiichi Kido ,  Hiromu Yoshimoto

IPC分类号： B41J2/44 ,  G03G15/00 ,  G03G15/02 ,  G03G15/04 ,  G03G15/043 ,  G03G15/047 ,  G03G15/06 ,  G03G15/16 ,  G03G21/00 ,  G03G21/08 ,  G03G21/14

CPC分类号： G03G21/08 ,  G03G15/1675

摘要： An image forming apparatus provides a photosensitive body, a main charger, an exposing unit, developing unit and a contact-transfer charger. The main charger charges the photosensitive body with a predetermined electric potential. The exposing unit applies a laser beam on the surface of the photosensitive body to form an electric latent image. The developing unit develops the electrostatic latent image to form a toner image. The contact-transfer charger transfers the toner image on an image transfer paper. The image forming apparatus further provides controller for power supplies. The controller controls the power supplies after an image forming operation in a manner to enhance the electric potential of the photosensitive body to a high level by the main charger, drop the surface potential of the photosensitive body to a low level by the contact-transfer charger and then to cut off a bias voltage of the developing unit.

摘要翻译： 图像形成装置提供感光体，主充电器，曝光单元，显影单元和接触转印充电器。 主充电器以预定电位对感光体充电。 曝光单元在感光体的表面上施加激光束以形成电潜像。 显影单元显影静电潜像以形成调色剂图像。 接触转印充电器将图像转印纸上的调色剂图像转印。 图像形成装置还提供用于电源的控制器。 控制器以图像形成操作的方式控制电源，以通过主充电器将感光体的电位提高到高电平，通过接触转印充电器将感光体的表面电位降至较低水平 然后切断显影单元的偏置电压。

公开(公告)号：US5548385A

公开(公告)日：1996-08-20

申请号：US125317

申请日：1993-09-22

申请人： Yasuhiro Takai ,  Atsushi Ueda ,  Hirokazu Tanaka ,  Hideo Yamasa

发明人： Yasuhiro Takai ,  Atsushi Ueda ,  Hirokazu Tanaka ,  Hideo Yamasa

IPC分类号： G03G15/08 ,  G03G15/06

CPC分类号： G03G15/0844 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0856 ,  G03G15/0862 ,  G03G15/0889

摘要： A developer device is provided with a developer vessel for storing therein a developer material composed of toner particles and carrier granules. In the developer device, a target ratio of toner particles for a detected quantity of the developer material is computed. In the device, a toner concentration detector sensor is also provided for detecting the ratio of toner particles in the developer vessel. In order to set the detected toner ratio of toner particles equal to the target ratio, quantity of toner particles to be additionally supplied to the developer vessel is controlled. As a result, the ratio of toner particles to the developer material stored in the developer vessel can be maintained in a predetermined ratio, thereby ensuring a desirable image quality.

摘要翻译： 显影剂装置设置有用于在其中存储由调色剂颗粒和载体颗粒组成的显影剂材料的显影剂容器。 在显影剂装置中，计算检测量的显影剂材料的调色剂颗粒的目标比例。 在该装置中，还提供了用于检测显影剂容器中调色剂颗粒的比例的调色剂浓度检测器传感器。 为了将调色剂颗粒的检测到的调色剂比设定为目标比例，控制另外供应给显影剂容器的调色剂颗粒的量。 结果，可以将存储在显影剂容器中的调色剂颗粒与显影剂材料的比率保持在预定比例，从而确保期望的图像质量。

公开(公告)号：US5471283A

公开(公告)日：1995-11-28

申请号：US227693

申请日：1994-04-14

申请人： Kouichi Irihara ,  Hideo Yamasa ,  Fumio Shimazu ,  Takasumi Wada

发明人： Kouichi Irihara ,  Hideo Yamasa ,  Fumio Shimazu ,  Takasumi Wada

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

CPC分类号： G03G15/75 ,  G03G15/0216 ,  G03G15/1675

摘要： An electrophotographic printing machine is provided with a photoreceptor drum including a photosensitive layer formed on a surface of an electrically conductive base, a contact charger in contact with the photosensitive layer for charging the photosensitive layer by applying thereto a DC voltage, and a voltage drop detecting circuit for outputting a detecting signal when the voltage has dropped below a reference voltage. When a defect exists such as a pin hole on the photosensitive layer, the voltage being applied to the photosensitive layer of the contact charger drops. In this state, a detecting signal is output to a controller from the voltage drop detecting circuit. When the controller receives the detecting signal, the controller signals to stop the operation of the entire device, and signals a display to display a message indicating to exchange the photoreceptor drum. According to the electrophotographic printing machine, the image forming process will not be continued with the detective portion on the photosensitive layer. Thus, the contact charger can be prevented from breaking down.

摘要翻译： 电子照相印刷机设置有感光鼓，感光鼓包括形成在导电性基体的表面上的感光层，与感光层接触的接触充电器，用于通过施加直流电压对感光层进行充电，以及电压降检测 电路，用于当电压降至低于参考电压时输出检测信号。 当存在诸如感光层上的针孔的缺陷时，施加到接触充电器的感光层的电压下降。 在这种状态下，检测信号从压降检测电路输出到控制器。 当控制器接收到检测信号时，控制器发出信号以停止整个设备的操作，并且向显示器发出信号以显示指示更换感光鼓的消息。 根据电子照相印刷机，感光层上的检测部分不会继续图像形成处理。 因此，可以防止接触充电器破裂。

公开(公告)号：US6084614A

公开(公告)日：2000-07-04

申请号：US45312

申请日：1998-03-20

申请人： Hideo Yamasa ,  Kouichi Irihara

发明人： Hideo Yamasa ,  Kouichi Irihara

IPC分类号： B41J2/385 ,  B41J2/415 ,  G03G15/05 ,  G03G15/34 ,  B41J2/06

CPC分类号： G03G15/34 ,  B41J2/4155

摘要： Featured is an imaging forming apparatus that provides minute particles having a uniform diameter and being uniformly charged. The image forming apparatus includes a supplying member that supplies charged developing particles, a counter electrode disposed opposite to the supplying member and a control electrode disposed therebetween and including a plurality of passing holes serving as passages for the developing particles. While a potential for generating a predetermined potential difference is applied between the supplying member and the counter electrode, the potential being applied to the control electrode is changed in order to change an electric field existing between the supplying member and the counter electrode. This controls flying of the developing particles passing through the passing holes in a direction from the supplying member to the counter electrode, and thus the forming of the image. The developing particles are formed of a liquid or liquescent material, and fine-grained and charged with electricity by the supplying member. The supplying member is particularly configured or arranged so the developing particles thereon formed have a diameter to minimize particle fragmentation during flying from the supplying member towards the control electrode.

摘要翻译： 特征在于提供具有均匀直径并均匀带电的微小颗粒的成像装置。 图像形成装置包括：供给构件，其供给充电的显影剂，与该供给构件相对设置的对置电极和设置在该两者之间的控制电极，并且包括用于显影粒子的通道的多个通孔。 虽然在供给构件和对电极之间施加产生预定电位差的电位，但是改变施加到控制电极的电位，以改变供给构件和对电极之间存在的电场。 从而控制从供给部件向对置电极的方向通过通孔的显影粒子的飞散，从而形成图像。 显影颗粒由液体或液体材料形成，并且由供给构件细粒化并充电。 供给构件被特别地构造或布置成使得其上形成的显影颗粒具有直径，以使从供给构件向控制电极飞行期间的颗粒碎裂最小化。