公开(公告)号：EP1914603A3

公开(公告)日：2014-04-23

申请号：EP07118801.5

申请日：2007-10-18

申请人： Canon Kabushiki Kaisha

发明人： Yamamoto, Takeshi ,  Baba, Yoshinobu ,  Haraguchi, Manami ,  Kubo, Kenta

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  G03G2215/0602 ,  G03G2215/0607 ,  G03G2215/0634

摘要： An image forming apparatus including: an image bearing member; and a developer bearing member bearing a developer including a toner and a carrier, the developer bearing member developing an electrostatic image formed on the image bearing member with the developer, and the developer bearing member being applied with an alternate voltage in order to form an alternate electric field between the developer bearing member and the image bearing member, wherein assuming that electric field intensities Eb and Ed be Eb=|(Vp1-VL)/D| and Ed= | (Vp2-VL)/D|, a relationship, 0≥K1>K2, is satisfied, where K1: a gradient at Ed, and K2: a gradient at Eb, and wherein a resistivity pb of the carrier at the electric field intensity Eb satisfies 1.1×10 6 ×e n 7 [Ω·m] (where: e is the base of natural logarithms; and n = 4×Eb×10 -7 ).

摘要翻译： 一种图像形成装置，包括：图像承载部件; 以及承载显影剂的显影剂承载部件，所述显影剂包括调色剂和载体，所述显影剂承载部件利用所述显影剂使在所述图像承载部件上形成的静电图像显影，并且所述显影剂承载部件被施加交流电压以形成交替 在显影剂承载构件和图像承载构件之间的电场，其中假设电场强度Eb和Ed为Eb = |（Vp1-VL）/ D | 和Ed = | （Vp2 -VL）/ D |时，满足0≥K1> K2的关系，其中K1：在Ed处的梯度，以及K2：在Eb处的梯度，并且其中电场强度处的载流子的电阻率pb Eb满足1.1×106×en

公开(公告)号：EP2385429A3

公开(公告)日：2013-07-03

申请号：EP11163490.3

申请日：2011-04-21

申请人： Kabushiki Kaisha Toshiba ,  Toshiba TEC Kabushiki Kaisha

发明人： Kabai, Takahito ,  Goto, Yasuo

IPC分类号： G03G15/08

CPC分类号： G03G15/0875 ,  G03G15/0855 ,  G03G15/0863 ,  G03G15/0865 ,  G03G2215/0602 ,  G03G2215/0697

摘要： According to one embodiment, an image forming apparatus (1) includes an identification-section detecting device configured to detect, on the basis of an identification section included in a developer cartridge (201), a type of a developer stored by the developer cartridge and detect, on the basis of an identification section included in a developing device, a type of a developer used by the developing device and a control section (112) configured to determine, on the basis of an output of the identification-section detecting device, whether the type of the developer stored by the developer cartridge (201) and the type of the developer used by the developing device coincide with each other, prohibit from performing image formation if the types of the developers do not coincide with each other, and set an image forming method according to the determined types of the developers if the types of the developers coincide with each other.

公开(公告)号：EP2249211A1

公开(公告)日：2010-11-10

申请号：EP10160899.0

申请日：2010-04-23

申请人： Xerox Corporation

发明人： Sacripante, Guerino G. ,  Dyck, Nathan ,  Vanbesien, Daryl W. ,  Zwartz, Edward G.

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/093 ,  G03G13/20 ,  G03G15/20

CPC分类号： G03G9/0819 ,  G03G9/0806 ,  G03G9/0815 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09328 ,  G03G9/09392 ,  G03G15/08 ,  G03G15/2007 ,  G03G2215/0602

摘要： Processes for producing emulsion aggregation toners are provided. In embodiments, methods of the present disclosure may be utilized to produce toners suitable for low melt applications, including use in flexible packaging applications, where low pile height is desired for low cost and flexibility. In embodiments, the EA toners may be prepared by optimizing the particle size of the emulsion, the choice of and amount of aggregating agent utilized, and the solids content of the emulsion.

公开(公告)号：EP0693715A3

公开(公告)日：1998-01-14

申请号：EP95111251.5

申请日：1995-07-18

申请人： HITACHI, LTD. ,  HITACHI KOKI CO., LTD.

发明人： Kumasaka, Takao ,  Takuma, Yasuo ,  Igawa, Tatsuo ,  Sugaya, Tomio ,  Kikuchi, Yasuo

IPC分类号： G03G15/09

CPC分类号： G03G15/0921 ,  G03G2215/017 ,  G03G2215/018 ,  G03G2215/0602 ,  G03G2215/0634

摘要： A developing apparatus in which a stationary multipole permanent magnet (4) is placed in a sleeve (3) and in which a development is performed by bringing a developer (7), which contains at least carrier and toner particles and is held on the periphery of a sleeve (3) by use of the magnetic force of the multipole permanent magnet (4), into contact with a photo-conductive body (1) owing to the rotation of the sleeve (3). For securing of image density and for preventing of the deposition of carrier onto the photo-conductive body (1), two magnetic pieces (18, 19), each of which is arranged lengthwise in the direction of the axis thereof and has same polarity, are placed in a region in the multipole permanent magnet (4), which faces the photo-conductive body (1), in such a manner as to adjoin in the circumferential direction of said permanent magnet (4). This results in generation of the distribution of a magnetic field, which have two peaks of the magnetic force. The position, at which a second one of the two peaks of the magnetic force is formed downstream in the direction of rotation of the sleeve (3), is set at the nearest point between the photo-conductive body (1) and the sleeve (3). Thereby, even when a development is performed by bringing the developer (7) into light contact with the photo-conductive body (1), the image density can be secured. Further, the carrier can be prevented from depositing on the photo-conductive body (1).

摘要翻译： 一种显影装置，其中固定多极永磁体（4）放置在套筒（3）中，其中通过使至少包含载体和调色剂颗粒并保持在周边上的显影剂（7）进行显影 通过使用多极永磁体（4）的磁力，由于套筒（3）的旋转而与光导体（1）接触的套筒（3）。 为了确保图像浓度和防止载体沉积到光导体（1）上，两个磁性片（18,19）在其轴线方向上纵向设置并具有相同的极性， 以与所述永磁体（4）的圆周方向相邻的方式配置在与所述导光体（1）相对的所述多极永磁体（4）的区域中。 这导致产生具有磁力的两个峰值的磁场分布。 将磁力的两个峰的第二个峰在套筒（3）的旋转方向的下游形成的位置设置在光导体（1）和套筒（1）之间的最近点 3）。 因此，即使通过使显影剂（7）与光导体（1）发生光接触来进行显影，也可以确保图像浓度。 此外，可以防止载体沉积在光导体（1）上。 $$

公开(公告)号：EP1847883B1

公开(公告)日：2012-12-26

申请号：EP07106584.1

申请日：2007-04-20

申请人： Ricoh Company, Ltd.

发明人： Iwamoto, Yasuaki ,  Watanabe, Yohichiroh ,  Shitara, Yasutada

IPC分类号： G03G15/20 ,  G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/08775 ,  G03G9/08786 ,  G03G9/08791 ,  G03G15/2064 ,  G03G2215/0602 ,  G03G2215/2032

公开(公告)号：EP1868040A2

公开(公告)日：2007-12-19

申请号：EP07011378.2

申请日：2007-06-11

申请人： KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.

发明人： Hirayama, Junya ,  Natsuhara, Toshiya ,  Matsuura, Masahiko ,  Maeyama, Takeshi ,  Uetake, Shigeo

IPC分类号： G03G15/08

CPC分类号： G03G15/0815 ,  G03G2215/0602 ,  G03G2215/0607

摘要： A compact development apparatus using a two-component developer and an image forming apparatus wherein carrier deterioration is prevented to ensure formation of a high-quality image for a long time. The development apparatus uses the developer made up of a mixture of toner, carrier, and opposite polarity particles to be charged oppositely to the toner wherein the opposite polarity particles contain the particles having a relative dielectric constant of 6.7 or more.

摘要翻译： 使用双组分显影剂和图像形成装置的小型显影装置，其中防止载体变质以确保长时间形成高质量图像。 显影装置使用由调色剂，载体和相反极性颗粒的混合物构成的显影剂与调色剂相反地充电，其中相反极性颗粒包含相对介电常数为6.7或更大的颗粒。

公开(公告)号：EP1787171A1

公开(公告)日：2007-05-23

申请号：EP05779073.5

申请日：2005-07-26

申请人： OCE Printing Systems GmbH

发明人： SCHLEUSENER, Martin ,  HÖLLIG, Uwe

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0928 ,  G03G15/0822 ,  G03G2215/0602 ,  G03G2215/0634 ,  G03G2215/0869

摘要： The invention relates to an arrangement and a method for inking an applicator element (14) of an electrophotographic printer or copier. Said arrangement comprises a magnetic roll (28) provided with a rotatable envelope (26) having an outer surface to which a two-constituent mixture of toner particles and ferromagnetic carrier particles adheres. The two-constituent mixture adhering to the outer surface of the magnetic roll sleeve (26) can be guided past the surface of the applicator element (14) to be inked. The magnetic roll (28) comprises a magnetic rotor (30) which is provided with magnetic elements (32, 1 to 7) and arranged inside the magnetic roll sleeve (26). The magnetic poles (N, S) of the magnetic elements (32, 1 to 7) extend along the longitudinal axis of the magnetic roll sleeve (26). The rotational axis (M) of the magnetic rotor (30) is essentially parallel to the rotational axis (M) of the magnetic roll sleeve (26).

公开(公告)号：EP1688802A2

公开(公告)日：2006-08-09

申请号：EP06100980.9

申请日：2006-01-27

申请人： Xerox Corporation

发明人： Proper, James M. ,  Chung, Joo T. ,  Morales-Tirado, Juan A. ,  Silence, Scott M. ,  Masucci, Zhaoyi M. ,  Ladue, Kristen L. ,  Keenan, Christine A. ,  Stoll, Kimberley A.

IPC分类号： G03G15/08

CPC分类号： G03G15/08 ,  G03G13/08 ,  G03G15/0803 ,  G03G2215/0602 ,  G03G2215/0621 ,  G03G2215/0643

摘要： Super wire history image defects in an image development system including one or more electrode wires (48) disposed in a gap between a toner donor roll (42) and an imaging member are reduced by providing an initial toner composition in the image development system, the initial toner composition containing at least 30 number% fine particles having a particle size no greater than 5 µm; and providing replenisher toner into the development system to replenish the toner used to produce images by the image development system; the replenisher toner containing 20 number% or less fine particles having a particle size no greater than 5 µm.

摘要翻译： 通过在图像显影系统中提供初始调色剂组合物来减少包括设置在调色剂供体辊（42）和成像构件之间的间隙中的一个或多个电极线（48）的图像显影系统中的超级线历史图像缺陷， 含有至少30数量％粒径不大于5μm的细颗粒的初始调色剂组合物; 并将补充剂调色剂提供到显影系统中以补充由图像显影系统产生图像的调色剂; 补充剂调色剂含有20个或更少的粒度不大于5μm的细颗粒。

公开(公告)号：EP1462863A1

公开(公告)日：2004-09-29

申请号：EP04007061.7

申请日：2004-03-24

申请人： Ricoh Company Ltd.

发明人： Suzuki, Koji ,  Aoki, Mitsuo ,  Shu, Bing ,  Koichi, Yasushi ,  Soga, Setsuo ,  Kasai, Tadashi ,  Takahashi, Yutaka

IPC分类号： G03G15/00

CPC分类号： G03G15/5041 ,  G03G15/00 ,  G03G2215/00033 ,  G03G2215/00071 ,  G03G2215/0602

摘要： An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone granularity of the toner image after developing but before electrostatic transfer was set at 0.25 or less. The average halftone granularity was found by measuring the granularity of a toner image at locations of different average brightness by means of newly proposed formula, and averaging the measured values for which the average brightness is 40 to 80. The estimated average halftone granularity was obtained by estimating the average halftone granularity of the toner image on a photoreceptor by means of a newly proposed method.

摘要翻译： 一种能够可靠地形成具有浓度梯度的图像的电子照相图像形成装置，其不具有低质量的外观。 显影后但静电转印前的调色剂图像的估计平均半色调粒度设定为0.25以下。 通过新提出的公式测量不同平均亮度位置处的调色剂图像的粒度，平均亮度为40至80的测量值，平均半色调颗粒度是通过测量平均半色调粒度得到的。估计的平均半色调粒度通过 通过新提出的方法估计感光体上调色剂图像的平均半色调粒度。

公开(公告)号：EP1367455A3

公开(公告)日：2004-07-07

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 (1) for bearing an electrostatic image; a developer carrying member (10) 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 (12) for applying a developing voltage to the developer carrying member. A size of area S (V x sec) of a region in a waveform of the developing voltage in which the additive receives force toward said image bearing member and an amount of additive W (% by wt.) in the developer satisfy:-26.5W + 386 ≤ S ≤ -26.5W + 511.

摘要翻译： 一种图像形成设备包括：图像承载部件（1），用于承载静电图像; 显影剂承载部件（10），用于承载显影剂并用于与图像承载部件一起形成显影区域，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。 在显影电压波形中，添加剂向所述图像承载部件施加力的区域的面积S（V×秒）的大小和显影剂中添加剂的量W（重量％）满足：-26.5 W +386≤S≤-26.5W + 511。