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    Image forming apparatus
    71.
    发明公开
    Image forming apparatus 审中-公开
    成像设备

    公开(公告)号：EP2642348A2

    公开(公告)日：2013-09-25

    申请号：EP13156780.2

    申请日：2013-02-26

    申请人： Canon Kabushiki Kaisha

    发明人： Kubo, Kenta ,  Horie, Juun ,  Moriya, Shuji ,  Miyazawa, Tomoaki ,  Usami, Hirokazu ,  Ishida, Tomohito ,  Haraguchi, Manami ,  Yamamoto, Takeshi

    IPC分类号： G03G15/06 ,  G03G15/00

    CPC分类号： G03G15/0849 ,  G03G15/0907 ,  G03G2215/0648

    摘要： An image forming apparatus (100) includes a photosensitive drum (3); a first sleeve (21) for carrying a developer containing toner and a carrier having a volume resistivity lower than that of the toner and for developing an image on the drum by rubbing the drum with the developer; a second sleeve (31) for carrying the developer received from the first sleeve and for developing the image by rubbing the drum with the developer carried on the second sleeve; a voltage source (40) for applying a developing bias voltage including a DC voltage component and an AC voltage component to the first sleeve and second sleeve; and a driving device (50) for rotating the first sleeve at a peripheral speed higher than the drum and one (60) for rotating the second sleeve at a peripheral speed which is higher than that of the drum and which is lower than that of the first sleeve.

    摘要翻译： 图像形成装置（100）包括感光鼓（3）; 第一套筒（21），其承载含有调色剂的显影剂和体积电阻率小于调色剂体积电阻率的载体，并且通过用显影剂擦拭鼓而在鼓上显影图像; 第二套筒（31），用于承载从第一套筒接收的显影剂并通过用承载在第二套筒上的显影剂摩擦鼓筒来显影图像; 电压源（40），用于向第一套筒和第二套筒施加包括直流电压分量和交流电压分量的显影偏压; 和驱动装置（50），用于以高于滚筒的圆周速度旋转第一套筒，以及一个（60），用于以比滚筒高的圆周速度旋转第二套筒，并且该圆周速度低于滚筒 第一个袖子。

    IMAGE FORMATION DEVICE
    72.
    发明公开
    IMAGE FORMATION DEVICE 审中-公开

    公开(公告)号：EP2267553A4

    公开(公告)日：2012-03-28

    申请号：EP09729484

    申请日：2009-04-10

    申请人： CANON KK

    发明人： KUBO KENTA ,  YAMAMOTO TAKESHI ,  HARAGUCHI MANAMI ,  MIYAZAWA TOMOAKI ,  HORIE JUUN

    IPC分类号： G03G15/06 ,  G03G5/08 ,  G03G9/10 ,  G03G9/113 ,  G03G15/09

    CPC分类号： G03G15/0907 ,  G03G9/10 ,  G03G9/107 ,  G03G2215/0602

    摘要： An image forming apparatus comprising: a charging device that charges an image bearing member; an exposure device that forms said electrostatic image by exposing a surface of said image bearing member; a developing device that has a developer carrying member on which a developer including a toner and a magnetic carrier is carried; and a power supply that applies a developing bias on said developer carrying member; wherein said developing bias is an oscillating voltage having a peak voltage V 1 a peak voltage V 2 ; a duty ratio Du (%); said magnetic carrier has a characteristic that: said magnetic carrier has a resistivity Á which decreases in accordance with an increasing electric field strength, and a relative dielectric constant µ which increases in accordance with an increasing electric field strength; a product of a time constant µ 0 µÁ(s) of electric charge decay, which is denoted by a dielectric constant of a vacuum µ 0 , the relative dielectric constant µ of said magnetic carrier, and said resistivity Á in an electric field strength E 2D decided by said peak voltage V 2 and said dark potential V D , and said electric field strength E 2D satisfies a relation of 20 ‰¤ µ 0 µÁ E 2D (s·V/cm); and said time constant µ 0 µÁ(s) and said relative dielectric constant µ in an electric field strength E 1L , which is decided by said first peak voltage V 1 and said bright potential V L , satisfy the following relations: µ 0 µÁ(s) ‰¤ 6.0 x 10 -4 , and 30 ‰¤ µ.

    VERFAHREN UND ANORDNUNG ZUM EINFÄRBEN EINES APPLIKATORELEMENTS EINES ELEKTROFOTOGRAFISCHEN DRUCKERS ODER KOPIERERS
    76.
    发明公开
    VERFAHREN UND ANORDNUNG ZUM EINFÄRBEN EINES APPLIKATORELEMENTS EINES ELEKTROFOTOGRAFISCHEN DRUCKERS ODER KOPIERERS 有权
    方法和装置用于着色电照相打印机或复印机的涂敷

    公开(公告)号：EP1747501A2

    公开(公告)日：2007-01-31

    申请号：EP05747766.3

    申请日：2005-05-09

    申请人： OCE Printing Systems GmbH

    发明人： SCHLEUSENER, Martin ,  HÖLLIG, Uwe

    IPC分类号： G03G15/09

    CPC分类号： G03G15/0907

    摘要： The invention relates to a method and arrangement for inking up an applicator element (14) of an electrophotographic printer or copier. A two-component mixture, which is comprised of electrically charged toner particles and of ferromagnetic particles and which adheres to the outer surface of a roller (16), is moved past a surface of an applicator element (14) to be inked up. When the two-component mixture is moved past, at least a portion of the toner particles contained in the two-component mixture is transferred to the surface of the applicator element (14) to be inked up. An electrical field is generated that acts at least upon the portion of the two-component mixture located between the surface of the roller (16) and the surface of the applicator element (14) to be inked up. The strength of the electrical field can be controlled with the aid of a control unit so that the transferred toner particles produce a preset layer thickness on the surface to be inked up.

    Image forming apparatus
    77.
    发明公开
    Image forming apparatus 有权
    Bilderzeugungsgerät

    公开(公告)号：EP1367455A2

    公开(公告)日：2003-12-03

    申请号：EP03018866.8

    申请日：1998-10-07

    申请人： CANON KABUSHIKI KAISHA

    发明人： Shinohara, Seiichi ,  Kato, Junichi ,  Inami, Satoru ,  Yoshida, Masahiro ,  Nakazono, Yusuke

    IPC分类号： G03G15/06

    CPC分类号： G03G15/0907 ,  G03G15/065 ,  G03G2215/0602 ,  G03G2215/0614

    摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member for carrying a developer and for forming a developing zone with the image bearing member, wherein the developer is externally added with additive having a charging polarity opposite from that of the developer; voltage applying means for applying a developing voltage to the developer carrying member; voltage control means for controlling the developing voltage so as to change force for directing the additive toward a non-image portion of the image bearing member in accordance with a number of image forming operations.

    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（1） 用于承载显影剂并用图像承载部件形成显影区的显影剂承载构件（10），其中显影剂外部添加具有与显影剂相反的充电极性的添加剂; 电压施加装置（12），用于向显影剂承载构件施加显影电压。 在显影电压的波形中，添加剂向所述图像承载部件接收力的区域的面积S（V×sec）和显影剂中的添加剂W（重量％）的量的尺寸 满足： -26.5W +386≤S≤-26.5W + 511.

    Developing device and power supply connection for applying developing bias voltage
    78.
    发明公开
    Developing device and power supply connection for applying developing bias voltage 有权
    Entwicklungsvorrichtung mit Stromversorgungsanschluss zum Anlegen einer Vorspannung

    公开(公告)号：EP1054300A1

    公开(公告)日：2000-11-22

    申请号：EP00303601.9

    申请日：2000-04-28

    申请人： CANON KABUSHIKI KAISHA

    发明人： Sasago, Yoshikazu ,  Sasaki, Teruhiko ,  Akutsu, Takashi ,  Noda, Shinya ,  Batori, Yoshiyuki ,  Terada, Ichiro

    IPC分类号： G03G15/00 ,  G03G15/06 ,  G03G15/08

    CPC分类号： G03G21/1867 ,  G03G15/0907 ,  G03G15/0935 ,  G03G21/1652 ,  G03G21/1676 ,  G03G2215/0177 ,  G03G2221/166 ,  G03G2221/183

    摘要： A developing device includes a rotatable developer carrying member (12) for carrying a developer to develop an electrostatic image formed on an image bearing member with a developer; wherein the developer carrying member includes a first cylindrical portion (12) and a second cylindrical portion (100) provided at an end of the first cylindrical portion (12) and supported by a bearing portion (300); a first electroconductive portion (500) extended from an outside of the second cylindrical portion (100) into an inside and electrically connected to an electroconductive portion (600) outside the developing device with a gap from an inner surface (105b) of the second cylindrical portion (100); a second electroconductive portion (400) contacted to an inner surface of the first cylindrical portion and rotatable with the first cylindrical portion and slidable on the first electroconductive portion (500); wherein a developing bias is applied to the first cylindrical portion (12) through the first and second electroconductive portions (500,400) from the electroconductive portion (600) outside of the developing device whereby the slidable contact (401,500a) between the first and second electroconductive portions is positioned within the first cylindrical portion (12).

    摘要翻译： 显影装置包括用于承载显影剂以显影形成在图像承载部件上的静电图像的可旋转显影剂承载部件（12） 其中所述显影剂承载构件包括设置在所述第一圆柱形部分（12）的端部并由轴承部分（300）支撑的第一圆柱形部分（12）和第二圆柱形部分（100）。 从第二圆筒部分（100）的外部延伸到内部并与显影装置外部的导电部分（600）电连接的第一导电部分（500）与第二圆柱形部分（100）的内表面（105b）间隔开间隙 部分（100）; 第二导电部分（400），其与所述第一圆柱形部分的内表面接触并且可与所述第一圆柱形部分一起旋转并且可在所述第一导电部分（500）上滑动; 其中通过所述第一和第二导电部分（500,400）从所述显影装置外部的导电部分（600）向所述第一圆柱形部分（12）施加显影偏压，由此在所述第一导电部分和所述第二导电部分之间的可滑动接触（401,500a） 部分位于第一圆柱形部分（12）内。

    An image forming apparatus
    79.
    发明公开
    An image forming apparatus 失效
    Bilderzeugungsgerät

    公开(公告)号：EP0851314A3

    公开(公告)日：2000-09-27

    申请号：EP97122775.6

    申请日：1997-12-23

    申请人： CANON KABUSHIKI KAISHA

    发明人： Inoue, Masahiro ,  Kobayashi, Toshiaki ,  Waki, Kenichiro ,  Hibino, Masaru

    IPC分类号： G03G15/09 ,  G03G15/06

    CPC分类号： G03G15/065 ,  G03G15/0907 ,  G03G2215/0609

    摘要： An image forming apparatus includes an image bearing member for carrying an electrostatic image, the surface layer having a volume resistivity of 10 9 -10 13 Ω.cm; developing means for developing the electrostatic image on the image bearing member with a developer comprising toner and a carrier having a volume resistivity value of 10 6 -10 10 Ω.cm, while contacting chains of the carrier to the image bearing member, the developing means including a developer carrying member, opposed to the image bearing member, for carrying the developer and electric field forming means for forming an alternating electric field between the image bearing member and the developer carrying member; wherein the following is satisfied:5x10-5 where T1 is a time duration in which the toner receives force away from the image bearing member toward the developer carrying member; T2 is a time duration in which the toner receives force away from the developer carrying member toward the image bearing 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，该表面层的体积电阻率为10 -9 -10 13欧米汞厘米; 显影装置，用于在包含调色剂的显影剂和体积电阻率为10 -6 -10 10Ω·cm的载体上使图像承载部件上的静电图像显影，同时使载体的链条与图像承载部件 显影装置包括显影剂承载构件，与图像承载构件相对，用于承载显影剂和用于在图像承载构件和显影剂承载构件之间形成交变电场的电场形成装置; 其中满足以下条件：其中T1是调色剂从图像承载部件朝向显影剂承载部件接收力的持续时间; T2是调色剂从显影剂承载构件朝向图像承载部件接收力的持续时间。

    Image forming apparatus
    80.
    发明公开
    Image forming apparatus 有权
    Bilderzeugungsgerät

    公开(公告)号：EP0908792A3

    公开(公告)日：1999-08-18

    申请号：EP98118956.6

    申请日：1998-10-07

    申请人： CANON KABUSHIKI KAISHA

    发明人： Shinohara, Seiichi ,  Kato, Junichi ,  Inami, Satoru ,  Yoshida, Masahiro ,  Nakazono, Yusuke

    IPC分类号： G03G15/08 ,  G03G15/09

    CPC分类号： G03G15/0907 ,  G03G15/065 ,  G03G2215/0602 ,  G03G2215/0614

    摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member for carrying a developer and for forming a developing zone with the image bearing member, wherein the developer is externally added with additive having a charging polarity opposite from that of the developer; voltage applying means for applying a developing voltage to the developer carrying member; voltage control means for controlling the developing voltage so as to change force for directing the additive toward a non-image portion of the image bearing member in accordance with a number of image forming operations.

    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; 用于承载显影剂并与图像承载部件形成显影区的显影剂承载部件，其中显影剂外部添加具有与显影剂相反的充电极性的添加剂; 电压施加装置，用于向显影剂承载构件施加显影电压; 电压控制装置，用于控制显影电压，以便根据图像形成操作的数量改变用于将添加剂引导到图像承载部件的非图像部分的力。