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    • 2. 发明授权
    • Image forming apparatus which applies oscillating voltage to developer
carrying member
    • 将振荡电压施加到显影剂承载构件的图像形成装置
    • US5805960A
    • 1998-09-08
    • US489171
    • 1995-06-09
    • Hiroyuki SuzukiMasahiro ItohKenichiro WakiRyo Inoue
    • Hiroyuki SuzukiMasahiro ItohKenichiro WakiRyo Inoue
    • G03G15/06G03G15/08G03G15/09G03G21/00G03G21/10G03G15/22G03G15/24
    • G03G15/0907G03G21/0064G03G2221/0005
    • An image forming apparatus includes an electrostatic image bearing member for bearing an electrostatic image; a developer carrying member for carrying developer containing toner; a voltage source for applying to said developer carrying member, an oscillating voltage of a predetermined frequency: a toner image forming device for forming a toner image on said electrostatic image bearing member using said voltage source; a transferring device for transferring the toner image onto transfer material; and a removing device for removing, using said voltage source, the toner remaining on said electrostatic image bearing member after the use of said transferring device: the voltage satisfies: ##EQU1## V.sub.pp �V!: peak-to-peak voltage of oscillating voltage V.sub.f �Hz!: frequency of oscillating voltage V.sub.back �V!: potential difference between surface potential of electrostatic image bearing member and DC component of oscillating voltageQ �c/kg!: average amount of toner charge d �m!: shortest distance between electrostatic image bearing member and developer carrying member.
    • 图像形成装置包括用于承载静电图像的静电图像承载部件; 用于承载含有调色剂的显影剂的显影剂承载构件; 用于施加到所述显影剂承载构件的电压源,具有预定频率的振荡电压:用于使用所述电压源在所述静电图像承载构件上形成调色剂图像的调色剂图像形成装置; 用于将调色剂图像转印到转印材料上的转印装置; 以及去除装置,用于在使用所述转印装置之后,使用所述电压源去除剩余在所述静电图像承载部件上的调色剂:所述电压满足:Vpp [V]:振荡电压的峰 - 峰电压 Vf [Hz]:振荡电压的频率Vback [V]:静电图像承载部件的表面电位与振荡电压的直流分量之间的电位差Q [c / kg]:调色剂电荷的平均量d [m] 静电图像承载部件和显影剂承载部件。
    • 3. 发明授权
    • Image-forming apparatus featuring a plurality of image forming means
    • 具有多个图像形成装置的图像形成装置
    • US5797070A
    • 1998-08-18
    • US845285
    • 1997-04-21
    • Kenichiro WakiMasahiro ItohHiroyuki SuzukiRyo Inoue
    • Kenichiro WakiMasahiro ItohHiroyuki SuzukiRyo Inoue
    • G03G15/01G03G15/30
    • G03G15/0194G03G15/0126G03G15/0189G03G2215/0119G03G2215/1628
    • An image forming apparatus includes at least a first image-forming unit provided with a first latent image-holding member, a first latent image-forming device, a first developing device for developing a first latent image with a first toner to form a first toner image, and a first image-transfer device for transferring the first toner image to an image-receiving member, and a second image-forming unit provided with a second latent image-holding member, a second latent image-forming device, a second developing device for developing a second latent image with a second toner to form a second toner image, and a second image-transfer device for transferring the second toner image to the image-receiving member holding the first toner image. The second developing device also serves as a cleaning device for recovering the toner remaining on the second latent image-holding member after the transfer to perform cleaning. The second latent image-holding member has a surface having a contact angle for water of not less than 85.degree..
    • 图像形成装置至少包括具有第一潜像保持部件的第一图像形成部件,第一潜像形成装置,第一显影装置,用于利用第一调色剂显影第一潜像,以形成第一调色剂 图像和第一图像转印装置,用于将第一调色剂图像转印到图像接收部件;以及第二图像形成单元,其具有第二潜像保持部件,第二潜像形成装置,第二显影装置 用于利用第二调色剂显影第二潜像以形成第二调色剂图像的装置,以及用于将第二调色剂图像转印到保持第一调色剂图像的图像接收部件的第二图像转印装置。 第二显影装置还用作用于在转印之后回收残留在第二潜像保持部件上的调色剂以进行清洁的清洁装置。 第二潜像保持构件具有不小于85°的水接触角的表面。
    • 4. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US5758038A
    • 1998-05-26
    • US677280
    • 1996-07-09
    • Masahiro ItohKenichiro WakiHiroyuki SuzukiRyo Inoue
    • Masahiro ItohKenichiro WakiHiroyuki SuzukiRyo Inoue
    • G03G15/00G03G15/01G03G15/08G03G15/16G06F15/00B41J29/38H04N1/034H04N1/46
    • G03G21/0064G03G15/0194G03G15/0189G03G2215/0119
    • An image forming apparatus has a plurality of image forming units for forming, on an image receiving member such as a transfer sheet, toner images of a plurality of different colors such as magenta, cyan, yellow and black. Each of the image forming units includes a photosensitive drum serving as an image carrier, a developing device for developing an electrostatic latent image carried by the image carrier to form a color toner image, and a transfer device for transferring the toner image to the image receiving member. The developing device in the image forming unit for forming on the image receiving member the toner image of an (i+1)-th color is of the type capable of simultaneously performing both development and removal of residual toner. The transfer currents T.sub.i and T.sub.i+1 employed by the transfer units which perform transfer of the toner images of an i-th color and the (i+1)-th color satisfy the following condition (1). The sphericity factor SF of the toner used in at least one of the image forming units, defined by the following equation (2) satisfies the following condition (3): 1.0
    • 图像形成装置具有多个图像形成单元,用于在诸如转印片的图像接收构件上形成诸如品红色,青色,黄色和黑色的多种不同颜色的调色剂图像。 每个图像形成单元包括用作图像载体的感光鼓,用于显影由图像载体承载的静电潜像以形成彩色调色剂图像的显影装置,以及用于将调色剂图像转印到图像接收的转印装置 会员。 图像形成单元中用于在图像接收部件上形成的显影装置,第(i + 1)色的调色剂图像是能够同时进行显影和去除残留调色剂的类型。 执行第i色和第(i + 1)色的调色剂图像的转印的转印单元采用的转印电流Ti和Ti + 1满足以下条件(1)。 用于由下列等式(2)定义的至少一个图像形成单元中的调色剂的球形度SF满足以下条件(3):1.0
    • 5. 发明授权
    • Charging device and image forming apparatus
    • 充电装置及成像装置
    • US5895146A
    • 1999-04-20
    • US780683
    • 1997-01-08
    • Kenichiro WakiMasahiro ItohRyo Inoue
    • Kenichiro WakiMasahiro ItohRyo Inoue
    • G03G15/02G03G21/00G03G15/09
    • G03G15/0241G03G21/0064G03G2215/022G03G2221/0005
    • An image forming apparatus includes a charging device applies a voltage to charge an image bearing member. The charging device is provided with a charging means to which a voltage is applicable to charge said image bearing member, said charging means being provided with a magnetic particle carrying member for carrying and conveying a magnetic particle layer contacting with said image bearing member during the charging operation; a container contains magnetic particles therein; and a replacing device replaces the magnetic particles carried on the magnetic particle carrying member with the magnetic particles contained in the container. A developer develops a latent image produced on the image bearing member by the charging device using a toner to produce a toner image. A transferring device transfers the toner image from the image bearing member simultaneously with developing of the latent image without using a cleaner member after transferring by said transferring device and before charging by said charging device.
    • 图像形成装置包括充电装置施加电压以对图像承载部件充电。 充电装置设置有充电装置,电压可应用于充电所述图像承载部件,所述充电装置设置有用于在充电期间承载和输送与所述图像承载部件接触的磁性颗粒层的磁性颗粒承载部件 操作; 容器中含有磁性颗粒; 并且替换装置用容纳在容器中的磁性颗粒代替携带在磁性颗粒承载构件上的磁性颗粒。 显影剂通过使用调色剂的充电装置显影在图像承载部件上产生的潜像,以产生调色剂图像。 传送装置在通过所述传送装置传送之后并且在由所述充电装置充电之前,不会使用清洁器构件,同时从图像承载部件转印调色剂图像,同时显影潜像。
    • 7. 发明授权
    • Charging apparatus and image forming apparatus
    • 充电装置及成像装置
    • US06792232B2
    • 2004-09-14
    • US10370773
    • 2003-02-24
    • Hiroyuki SuzukiRyo InoueRyo Nakamura
    • Hiroyuki SuzukiRyo InoueRyo Nakamura
    • G03G1502
    • G03G15/0216G03G2215/022
    • To provide a charging apparatus including: a first charging unit for charging a body to be charged, the first charging unit including a magnetic brush that contacts the body to be charged; and a second charging unit that is provided on a downstream side of the first charging unit with respect to a moving direction of the body to be charged, the second charging unit including a magnetic brush that contacts the body to be charged, in which a contact width, with which the magnetic brush of the first charging unit contacts the body to be charged, is wider than a contact width with which the magnetic brush of the second charging unit contacts the body to be charged.
    • 提供一种充电装置,包括:第一充电单元,用于对被充电体充电,第一充电单元包括与要充电的主体接触的磁刷; 以及第二充电单元,其相对于要充电的主体的移动方向设置在所述第一充电单元的下游侧,所述第二充电单元包括与要充电的主体接触的磁刷,其中, 第一充电单元的磁刷与被充电体接触的宽度比第二充电单元的磁刷与要充电的主体接触的接触宽度宽。