公开(公告)号：US5669050A

公开(公告)日：1997-09-16

申请号：US365034

申请日：1994-12-28

申请人： Yuji Sakemi ,  Koji Amemiya ,  Takeshi Menjo ,  Masahiro Inoue ,  Masami Izumizaki

发明人： Yuji Sakemi ,  Koji Amemiya ,  Takeshi Menjo ,  Masahiro Inoue ,  Masami Izumizaki

IPC分类号： G03G15/06 ,  G03G15/09 ,  G03G21/00

CPC分类号： G03G15/065 ,  G03G15/0907

摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member, opposed to the image bearing member, for carrying a developer containing toner; bias voltage applying device for applying a developing bias voltage to the developer carrying member, the bias voltage satisfying: ##EQU1## V1 (V): a voltage applying force to the toner toward the developer carrying member away from the image bearing member;T1 (sec): a time period of application of the voltage V1;V2 (V): a voltage applying force to the toner away from the developer carrying member toward the image bearing member;T2 (sec): a time period of application of the voltage V2;T3 (V): a time period of application of a voltage V3 which is (V1+V2)/2;d (m): distance between the image bearing member and the developer carrying member.

摘要翻译： 图像形成装置包括用于承载静电图像的图像承载部件; 显影剂承载构件，与图像承载构件相对，用于承载含有调色剂的显影剂; 偏置电压施加装置，用于向显影剂承载构件施加显影偏压，该偏置电压满足以下条件： T3>（133d2 / T2 | V2-V1 |）-1/2T2 V1（V） 朝向显影剂承载构件的调色剂远离图像承载部件; T1（sec）：施加电压V1的时间段; V2（V）：向显影剂承载构件朝向图像承载构件的向调色剂供电的电压; T2（秒）：施加电压V2的时间段; T3（V）：施加（V1 + V2）/ 2的电压V3的时间段; d（m）：图像承载部件与显影剂承载部件之间的距离。

公开(公告)号：US4883019A

公开(公告)日：1989-11-28

申请号：US145815

申请日：1988-01-19

申请人： Takeshi Menjo ,  Masahiro Inoue ,  Koji Amemiya

发明人： Takeshi Menjo ,  Masahiro Inoue ,  Koji Amemiya

IPC分类号： G03G15/08

CPC分类号： G03G15/0855 ,  G03G15/0877

摘要： An image forming apparatus including an image bearing member, a developing device for developing a latent image formed on the image bearing member and including a developer carrying member for carrying the developer toward the image bearing member, a toner content detecting device including a reflecting member for receiving light and reflecting a quantity of light corresponding to a reference toner content, a light emitting element and a light receiving element for producing an electric signal in accordance with a quantity of light applied to and received from the reflecting member, and a toner content control device for controlling toner supply to the developing device in accordance with a signal produced by the toner content detecting device. The toner content control device includes a device for storing a ratio of a reference toner content signal to a reference reflection density signal. A toner supply control device is provided for producing a ratio signal representative of a ratio of a toner content signal from the light receiving element to a reflection density signal from the light receiving element, for comparing the ratio signals, and for controlling toner supply to the developing device on the basis of a result of the comparison.

摘要翻译： 一种图像形成装置，包括图像承载部件，用于显影形成在图像承载部件上的潜像的显影装置，并且包括用于将显影剂携带到图像承载部件的显影剂承载部件;调色剂含量检测装置，包括反射部件， 接收光并反射与参考调色剂含量相对应的光量，发光元件和用于根据施加到反射构件并从反射构件接收的光量产生电信号的光接收元件，以及调色剂含量控制 用于根据由调色剂含量检测装置产生的信号控制向显影装置供应调色剂的装置。 调色剂含量控制装置包括用于存储基准调色剂含量信号与参考反射浓度信号的比率的装置。 提供调色剂供应控制装置，用于产生表示来自光接收元件的调色剂含量信号与来自光接收元件的反射浓度信号的比率的比率信号，用于比较信号比率，以及用于控制调色剂供应到 基于比较结果的显影装置。

公开(公告)号：US6088546A

公开(公告)日：2000-07-11

申请号：US582143

申请日：1996-01-02

申请人： Masahiro Inoue ,  Yuji Sakemi ,  Rie Saito ,  Jiro Ishizuka ,  Mitsuhiro Ota

发明人： Masahiro Inoue ,  Yuji Sakemi ,  Rie Saito ,  Jiro Ishizuka ,  Mitsuhiro Ota

IPC分类号： G03G15/20 ,  G03G15/00 ,  H04N1/00 ,  H04N1/29

CPC分类号： G03G15/5025 ,  H04N1/00795 ,  H04N1/00806 ,  H04N1/295 ,  G03G2215/00286 ,  G03G2215/00805 ,  G03G2215/0081 ,  G03G2215/00949

摘要： An image forming apparatus has an image forming device for forming an image on a recording material in response to an image on a document. The apparatus also has a glossiness detection device for detecting from the document the level of glossiness of the document image. The image forming device is controlled based on an output from the glossiness detection device. With this construction, the level of glossiness in response to the document image can be reproduced on the recording material, thus improving the quality of reproduced images.

摘要翻译： 图像形成装置具有用于响应文件上的图像在记录材料上形成图像的图像形成装置。 该装置还具有光泽度检测装置，用于从文件中检测文件图像的光泽度。 基于光泽检测装置的输出来控制图像形成装置。 利用这种结构，可以在记录材料上再现响应文件图像的光泽度水平，从而提高再现图像的质量。

公开(公告)号：US4954404A

公开(公告)日：1990-09-04

申请号：US251780

申请日：1988-10-03

申请人： Masahiro Inoue ,  Hatsuo Tajima ,  Yuji Sakemi ,  Kenji Okado

发明人： Masahiro Inoue ,  Hatsuo Tajima ,  Yuji Sakemi ,  Kenji Okado

IPC分类号： G03G15/01 ,  G03G13/01 ,  G03G13/09

CPC分类号： G03G13/09 ,  G03G13/013

摘要： A method of reverse development for depositing the toner particles to the light potential area of a photosensitive member. The developer used contains magnetic carrier particles and toner particles. An alternating electric field is formed in the developing position or zone. A relative volumetric ratio Q (%) of the magnetic carrier particles in the developing position satisfies 15.0.ltoreq.Q.ltoreq.28.0. The relative volumetric ratio is defined asQ=(M/h).times.(1/.rho.).times.C.sigma./(T+C)where M (g/cm.sup.2) is an amount of applied developer on a developing sleeve surface per unit area, h (cm) is a height of space in the developing position, .rho. (g/cm.sup.3) is a true density of the magnetic carrier particles, C/(T+C) (%) is a weight ratio of the carrier particles in the developer on the surface of the sleeve, and .sigma. is a ratio of a peripheral speed of the sleeve relative to the peripheral speed of the photosensitive member.

摘要翻译： 一种用于将调色剂颗粒沉积到感光构件的光电势区域的反向显影方法。 使用的显影剂包含磁性载体颗粒和调色剂颗粒。 在显影位置或区域形成交变电场。 显影位置中的磁性载体颗粒的相对体积比Q（％）满足15.0≤Q≤28.0。 相对体积比定义为Q =（M / h）x（1 / rho）xC sigma /（T + C）其中M（g / cm2）是每单位面积在显影套筒表面上施加的显影剂的量， h（cm）是显影位置的高度，rho（g / cm3）是磁性载体颗粒的真实密度，C /（T + C）（％）是载体颗粒的重量比 显影剂在套筒的表面上，西格玛是套筒的圆周速度相对于感光构件的圆周速度的比率。

公开(公告)号：US5752151A

公开(公告)日：1998-05-12

申请号：US578344

申请日：1995-12-26

申请人： Masahiro Inoue ,  Yuji Sakemi

发明人： Masahiro Inoue ,  Yuji Sakemi

IPC分类号： G03G9/087 ,  G03G9/097 ,  G03G21/00 ,  G03G15/08

CPC分类号： G03G21/0011 ,  G03G9/08728 ,  G03G9/08793 ,  G03G9/09716

摘要： An image forming apparatus has an image bearing member holding a toner thereon, and a cleaning blade coming into touch with the image bearing member to remove the toner remaining on the image bearing member. The cleaning blade has a tensile strength of from 80 to 120 kg/cm.sup.2.

摘要翻译： 图像形成装置具有在其上保持调色剂的图像承载部件和与图像承载部件接触的清洁刮板以去除残留在图像承载部件上的调色剂。 清洁刮板的拉伸强度为80〜120kg / cm 2。

公开(公告)号：US5239343A

公开(公告)日：1993-08-24

申请号：US660152

申请日：1991-02-20

申请人： Yuji Sakemi ,  Hatsuo Tajima ,  Kenji Okado ,  Masahiro Inoue

发明人： Yuji Sakemi ,  Hatsuo Tajima ,  Kenji Okado ,  Masahiro Inoue

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0921

摘要： A developing apparatus includes a developer layer thickness regulating zone downstream of one of magnetic poles of a stationary magnet disposed inside a developing sleeve, with respect to the rotational direction of the sleeve. In the regulating zone, there are provided a magnetic member and a non-magnetic member to regulate the layer thickness of the developer containing magnetic carrier particles and toner particles on the sleeve. The magnetic member has a width of not less than 1 mm and not more than 10 mm and a thickness of not less than 0.2 mm and not more than 3 mm.

摘要翻译： 显影装置包括相对于套筒的旋转方向设置在显影套筒内部的固定磁体的一个磁极下游的显影剂层厚度调节区域。 在调节区域中，设置有磁性构件和非磁性构件，以调节包含磁性载体颗粒的显影剂的层厚度和套筒上的调色剂颗粒。 磁性构件的宽度为1mm以上且10mm以下，厚度为0.2mm以上且3mm以下。

公开(公告)号：US5552872A

公开(公告)日：1996-09-03

申请号：US186036

申请日：1994-01-25

申请人： Koji Amemiya ,  Masahiro Inoue

发明人： Koji Amemiya ,  Masahiro Inoue

IPC分类号： G03G15/01 ,  G03G15/16 ,  G03G15/14

CPC分类号： G03G15/0131 ,  G03G15/166 ,  G03G2215/0177

摘要： An image forming apparatus comprises a photoconductor on which a toner image is formed, an intermediate transfer drum disposed opposite to the photoconductor for holding a sheet on its circumferential surface, and a transfer charger disposed opposite to the photoconductor through the intermediate transfer drum for transferring a toner image from the photoconductor onto a sheet held on the intermediate transfer drum. A separation charger is disposed at a downstream side of the transfer charger in the rotational direction of the intermediate transfer drum for separating the sheet from the intermediate transfer drum, the output of the separation charger being set corresponding to the number of times the toner image is transferred.

摘要翻译： 图像形成装置包括其上形成有调色剂图像的感光体，与感光体相对设置的用于在其圆周表面上保持片材的中间转印鼓，以及通过中间转印鼓与感光体相对设置的转印充电器，用于转印 将调色剂图像从感光体到保持在中间转印鼓上的片材上。 分离充电器设置在转印充电器的中间转印鼓的旋转方向的下游侧，用于将纸张与中间转印鼓分离，分离充电器的输出对应于调色剂图像的次数设定 转入。

公开(公告)号：US5890046A

公开(公告)日：1999-03-30

申请号：US673822

申请日：1996-06-27

申请人： Koji Amemiya ,  Masahiro Inoue

发明人： Koji Amemiya ,  Masahiro Inoue

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/166 ,  G03G2215/0177

摘要： An image forming apparatus comprising an image bearing member on which a toner image is formed, transfer material carrying structure for carrying thereon on a transfer material, a transfer charger for performing an image transfer operation for transferring electrostatically the toner image formed on the image bearing member to the transfer material carried on the transfer material carrying structure at an image transfer position, wherein the transfer charger performs the image transfer operation a plurality of times on the same transfer material, the transfer charger means being supplied with a voltage of a polarity opposite from that of the toner image, and a discharger device, having a first discharger disposed adjacent to the transfer material carrying side of the transfer material carrying structure and a second discharger opposed to the first discharger with the transfer material carrying structure therebetween, wherein the first and second dischargers are not operable during a period between an image transfer onto a transfer material and a successive image transfer onto the same transfer material and during passage of the transfer material between the first and second dischargers, and wherein, during a separating operation for separating the transfer material from the transfer material carrying means, the first and second dischargers acting on the transfer material over its entire surface in the separation period.

摘要翻译： 一种图像形成装置，包括在其上形成有调色剂图像的图像承载部件，用于在转印材料上承载的转印材料承载结构，用于执行用于静电转印形成在图像承载部件上的调色剂图像的图像转印操作的转印充电器 涉及在图像转印位置上承载在转印材料承载结构上的转印材料，其中转印充电器在相同的转印材料上多次进行图像转印操作，转印充电器装置被提供极性相反的电压 调色剂图像的位置以及排出装置，其具有邻近转印材料承载结构的转印材料承载侧设置的第一放电器和与第一放电器相对的第二放电器，其间具有转印材料承载结构，其中第一和 在pe期间，第二放电器不能操作 在转印到转印材料上的图像转印到相同的转印材料上并且在转印材料在第一和第二放电器之间通过期间的连续图像转印，并且其中，在用于将转印材料与转印材料分离的分离操作期间 意味着第一和第二放电器在分离期间在其整个表面上作用在转印材料上。

公开(公告)号：US5589922A

公开(公告)日：1996-12-31

申请号：US182515

申请日：1994-01-14

申请人： Koji Amemiya ,  Masahiro Inoue

发明人： Koji Amemiya ,  Masahiro Inoue

IPC分类号： G03G15/01 ,  G03G15/16 ,  G03G15/14

CPC分类号： G03G15/0131 ,  G03G15/166 ,  G03G2215/0177

摘要： An image forming apparatus includes an image bearing member on which a toner image is formed; transfer material carrying member for carrying thereon a transfer material; a transfer device for transferring the toner image from the image bearing member to a transfer material carried on the transfer material carrying member at a transfer position; a discharging device disposed downstream of the transfer position in a movement direction of the transfer material carrying member for acting on the transfer material on the transfer material carrying member corresponding to separation of the transfer material from the transfer material carrying member, the discharging device includes a first discharger, disposed at a transfer material carrying side of the transfer material carrying member and supplied with a voltage having a DC component of a polarity which is the same as the polarity of the toner image upon an image transfer operation.

摘要翻译： 图像形成装置包括其上形成有调色剂图像的图像承载部件; 用于承载转印材料的转印材料承载构件; 转印装置，用于将调色剂图像从图像承载部件转印到转印位置上承载在转印材料承载部件上的转印材料; 排出装置，其设置在转印材料承载构件的运动方向的下游，用于作用在转印材料承载构件上的转印材料上，与转印材料承载构件分离相对应，该排出装置包括： 第一放电器，设置在转印材料承载构件的转印材料承载侧，并且在图像转印操作时提供具有与调色剂图像的极性相同的极性的DC分量的电压。

公开(公告)号：US5091751A

公开(公告)日：1992-02-25

申请号：US530802

申请日：1990-05-30

申请人： Masahiro Inoue ,  Koji Amemiya ,  Akio Ohno ,  Takeo Tsunemi

发明人： Masahiro Inoue ,  Koji Amemiya ,  Akio Ohno ,  Takeo Tsunemi

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/1655 ,  G03G2215/0177

摘要： An image forming apparatus having a photosensitive drum and a transfer drum including a transfer member carrying sheet substantially contacting the photosensitive drum. In order to enable a toner image formed on the photosensitive drum to be efficiently transferred to a transfer member, the apparatus has a pressing sheet for outwardly pressing the transfer member carrying sheet from the interior of the transfer drum and a conductive member provided on the side of the pressing sheet adjacent the transfer member carrying sheet. The conductive member serves to realize a uniform distribution of surface potential on the pressing sheet and to maintain the surface potential constant, so that the intensity of the electric field applied to the corona discharge is made constant at a low level so that a stable transfer corona is applied to the transfer member carrying sheet, thus ensuring good quality of the transferred image.