公开(公告)号：US5313359A

公开(公告)日：1994-05-17

申请号：US890673

申请日：1992-05-29

申请人： Shinji Imagawa ,  Koichi Inui

发明人： Shinji Imagawa ,  Koichi Inui

IPC分类号： G03G15/00 ,  G03G15/02

CPC分类号： G03G15/0266 ,  G03G15/0216

摘要： A contact charger includes a photoreceptor having a photosensitive layer formed on a surface of an electrically conductive drum base and a fixed coil connected to the drum base and ground. The contact charger charges the photosensitive layer by making a charge roller in contact with the photosensitive layer while being applied thereto DC voltage from a power supply. With this arrangement, in the case where a pin hole exists on the photosensitive layer, there may have a continuity between the charge roller and the drum base which may results in a sudden increase in current flowing between the drum base and ground. When this happens, however, since self-induced electromotive force, having a direction opposite to the electromotive force of the power supply, is generated by the fixed coil in response to a sudden increase in current, excessive current will not flow between the drum base and ground, thereby eliminating the possibility of a large drop in voltage of the power supply. As a result, the contact charger is always capable of appropriately charging the surface of the photosensitive layer even in the case where a defect such as a pin hole exists on the photosensitive layer.

摘要翻译： 接触充电器包括具有形成在导电性鼓底座的表面上的感光层的感光体和连接到鼓底座和接地的固定线圈。 接触充电器通过使充电辊与感光层接触，同时从电源施加到其上的DC电压来对感光层充电。 利用这种布置，在感光层上存在针孔的情况下，充电辊和鼓座之间可能具有连续性，这可能导致在鼓底座和地面之间流动的电流突然增加。 然而，当发生这种情况时，由于响应于电流的突然增加，具有与电源的电动势相反的方向的自感应电动势由固定线圈产生，所以过大的电流将不会在鼓基 并接地，从而消除了电源电压大幅度下降的可能性。 结果，即使在感光层上存在诸如针孔的缺陷的情况下，接触充电器总是能够适当地对感光层的表面充电。

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：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：US5278612A

公开(公告)日：1994-01-11

申请号：US935896

申请日：1992-08-26

申请人： Koichi Inui

发明人： Koichi Inui

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

CPC分类号： G03G15/75

摘要： An image forming apparatus has a charging roller disposed in contact with a photoconductor having a photoconducting layer for charging the surface of the photoconductor, and a photoconductor life judging device including an element for detecting the change of the value of the current flowing through the charging roller and an element for judging the photoconductor life on the basis of the change of the current value.

摘要翻译： 图像形成装置具有：充电辊，其设置为与具有用于对感光体的表面充电的光电导层的光电导体接触;以及感光体寿命判断装置，其包括用于检测流过充电辊的电流值的变化的元件 以及用于基于当前值的变化来判断感光体寿命的元件。

公开(公告)号：US5546169A

公开(公告)日：1996-08-13

申请号：US412057

申请日：1995-03-28

申请人： Takasumi Wada ,  Hirokazu Fujita ,  Koichi Inui

发明人： Takasumi Wada ,  Hirokazu Fujita ,  Koichi Inui

IPC分类号： G03G15/05 ,  G03G15/04 ,  G03G15/22 ,  G03G15/24 ,  G03G15/00

CPC分类号： G03G15/0409 ,  G03G15/04018 ,  G03G2215/0497 ,  G03G2217/0091

摘要： An image forming apparatus includes a charging roller for charging a surface of a photoconductive layer in a photoreceptor so as to have a prescribed polarity, a first exposing unit which is arranged on a downstream side of the charging roller on the basis of a direction in which the photoreceptor moves, a developer unit which is placed on a downstream side of the first exposing unit and which keeps toner, to which a charge with a polarity opposite to the prescribed polarity is applied, in contact with a photoconductive layer, and a second exposing unit for directing light generated according to an image signal to a back of the photoconductive layer at a contact position of the toner and the photoconductive layer. The first exposing unit directing light reflected from a document to which a light is applied to the surface of photoconductive layer so as to form a first electrostatic latent image. The second exposing unit forms a second electrostatic latent image by interlocking or synchronizing with the developing operation of the developer unit. This makes it possible to easily form a synthetic image at a high speed by superimposing characters printed by a printer function onto a copy image formed by a copying function, for example.

摘要翻译： 图像形成装置包括：充电辊，用于对感光体中的光电导层的表面充电以具有规定的极性;第一曝光单元，其基于其中的方向布置在充电辊的下游侧， 感光体移动，显影单元被放置在第一曝光单元的下游侧并且保持具有与规定极性相反的极性的电荷的调色剂与光电导层接触，第二曝光 单元，用于在调色剂和光电导层的接触位置处将根据图像信号产生的光引导到光电导层的背面。 第一曝光单元将从被照射光的文档反射的光引导到光电导层的表面，以形成第一静电潜像。 第二曝光单元通过与显影单元的显影操作互锁或同步来形成第二静电潜像。 这使得可以通过将由打印机功能打印的字符叠加到例如由复印功能形成的复印图像上而高速地形成合成图像。

公开(公告)号：US4929970A

公开(公告)日：1990-05-29

申请号：US287886

申请日：1988-12-21

申请人： Koichi Inui

发明人： Koichi Inui

IPC分类号： B41J2/44 ,  G03G15/00 ,  G03G15/04 ,  G06K15/12

CPC分类号： G03G15/5045 ,  G06K15/1204 ,  G03G2215/00084

摘要： A laser printer comprising a photoreceptive means, a laser beam emitting device, a detecting means for detecting a factor of degradation of the image quality, the factor originating in the photoreceptive means, and a control means which controls the output level of said laser beam emitting device in accordance with the detected level of said factor.

摘要翻译： 一种激光打印机，包括感光装置，激光束发射装置，用于检测图像质量劣化因素的检测装置，来自感光装置的因子，以及控制装置，其控制发射的所述激光束的输出电平 设备根据检测到的所述因素的水平。

公开(公告)号：US4611591A

公开(公告)日：1986-09-16

申请号：US751083

申请日：1985-07-02

申请人： Koichi Inui ,  Hiroshi Makita

发明人： Koichi Inui ,  Hiroshi Makita

IPC分类号： A61M16/00 ,  A61M16/20 ,  A62B9/02

CPC分类号： A61M16/00 ,  A61M16/205 ,  A61M2016/0021

摘要： An expiration valve for an automatic respirator comprises a main body which is separable into a valve body and a diaphragm and a container which engages to a tube for supplying control pressure to one side of the diaphragm. A means for controlling such an expiration valve comprises a means for generating pressure for opening and closing the valve, a means for controlling this pressure, a pressure detector means, an exhaust means and a control means so that the valve can be electronically controlled for both the valve opening/closing functions and for the positive end expiratory pressure function.

摘要翻译： 用于自动呼吸器的呼吸阀包括可分离成阀体的主体和隔膜，以及与用于向隔膜的一侧提供控制压力的管接合的容器。 用于控制这种呼吸阀的装置包括用于产生用于打开和关闭阀的压力的装置，用于控制该压力的装置，压力检测装置，排气装置和控制装置，使得阀可以电子控制 阀门开/关功能和呼气末正压功能。