公开(公告)号：EP1975740A1

公开(公告)日：2008-10-01

申请号：EP08003101.6

申请日：2008-02-20

申请人： KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.

发明人： Kouno, Ryouji

IPC分类号： G03G15/08

CPC分类号： G03G15/0844 ,  G03G2215/0614

摘要： A developer device applies bias voltage including an alternating-current component equal to or larger than a value corresponding to a developing electric field of 9 V/µm to a developing roller. The bias voltage is set to apply developer to a latent image on a photosensitive element to develop the image in an image forming mode. The bias voltage is set so that a difference between an area central potential and a surface potential of the photosensitive element is shifted to a direction attracting the normally charged developer to a developer carrier, in relation to a difference between an area central potential and a surface potential of the image carrier in the latent image section in the image forming mode, and a supply amount of the developer to the photosensitive element is smaller than that in the latent image section in the image forming mode.

摘要翻译： 显影装置向显影辊施加包括等于或大于对应于9V /μm的显影电场的值的交流分量的偏置电压。 偏置电压被设置为将显影剂施加到感光元件上的潜像上以在图像形成模式下显影。 偏置电压被设置为使得区域中心电位和感光元件的表面电位之间的差异相对于区域中心电位和表面之间的差异而被移动到吸引通常充电的显影剂到显影剂载体的方向 在图像形成模式下，潜像部分中的图像载体的电位和对感光元件的显影剂的供给量小于图像形成模式中的潜像部分的电位。

公开(公告)号：EP0777159A2

公开(公告)日：1997-06-04

申请号：EP96308575.8

申请日：1996-11-28

申请人： MITA INDUSTRIAL CO. LTD.

发明人： Hazama, Hiroyuki ,  Watanabe, Masaru ,  Terada, Takashi

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G9/0821 ,  G03G13/08 ,  G03G2215/0614 ,  G03G2215/0861

摘要： An arrangement which makes good development possible, in a developing device (14) of a contact development type using non-magnetic monocomponent toner and using a developing roller (25), by keeping low the driving torque produced by the developing roller (25). To achieve this the coefficient of surface dynamic friction µ of the developing roller 25 against the surface of a photosensitive drum 11 is arranged to satisfy the relationship 0.2 ≦ µ ≦ 2.5. Also, the apparent density (AD) of toner to be used satisfies the relationship 0.25 (g/cc) ≦ AD ≦ 0.55 (g/cc). As a result, there are portions on which no toner adheres at both ends of the developing roller (25). Even when the portions are brought into contact with the photosensitive drum 11, friction in the contact portion is not too large, and driving torque produced by the developing roller (25) may be low. Further, a toner thin layer formed on the developing roller (25) reaches uniformity, whereby good development is achieved.

摘要翻译： 在使用非磁性单组分调色剂的接触显影类型的显影装置（14）中，通过保持低显影辊（25）产生的驱动转矩，可以使显影辊（25）发挥良好的发展。 为了实现这一点，显影辊25的表面动摩擦系数μ相对于感光鼓11的表面被设置成满足0.2≤2.5的关系。 此外，要使用的调色剂的表观密度（AD）满足0.25（g / cc）

公开(公告)号：EP0666516A1

公开(公告)日：1995-08-09

申请号：EP95300642.6

申请日：1995-02-01

申请人： OLIVETTI-CANON INDUSTRIALE S.p.A.

发明人： Forlani, Riccardo ,  Bortolin, Renato ,  Dal Bianco, Riccardo ,  Guelfo, Roberto

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0822 ,  G03G15/0868 ,  G03G15/0877 ,  G03G2215/0614 ,  G03G2215/0665 ,  G03G2215/0841

摘要： A development unit (10) for electric photocopiers using a magnetizable one-component toner (29) initially contained in a removable container (43) from which it is fed, by means of a rotating flexible strip (42), though a development (40) chamber fitted with stirring devices (15,44,45) to avoid the formation of lumps and to maintain the correct fluidity of the toner, and with a sensor device (41) to detect when the removable container is nearly empty, towards a rotating non-magnetic development drum (20) surrounding a number of stationary permanent magnets (25) over which is formed a magnetic brush, whose thickness is controlled by a non-magnetic flexible strip (22) pressed against the surface of the development drum.

摘要翻译： 一种用于电动感光复印机的显影单元（10），其使用最初容纳在可移除容器（43）中的可磁化单组分调色剂（29），借助于旋转的柔性条（42），可旋转的柔性条（42）通过显影（40） ）室，其装有搅拌装置（15,44,45）以避免形成块状物并保持调色剂的正确流动性，以及传感器装置（41）检测何时可移除的容器几乎为空，朝向旋转 围绕许多固定永磁体（25）的非磁性显影鼓（20）形成磁刷，其厚度由压在显影鼓表面上的非磁性柔性带（22）控制。

公开(公告)号：EP0306618B1

公开(公告)日：1993-01-07

申请号：EP88107899.2

申请日：1986-03-26

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Hosoya, Masahiro c/o Patent Division ,  Fujiwara, Shigeru c/o Patent Division ,  Uehara, Tsutomu c/o Patent Division

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/0808 ,  G03G2215/0614 ,  G03G2215/0636

公开(公告)号：EP0421331A3

公开(公告)日：1991-10-23

申请号：EP90118826.8

申请日：1990-10-01

申请人： CANON KABUSHIKI KAISHA

发明人： Kuribayashi, Tetsuya, c/o Canon Kabushiki Kaisha

IPC分类号： G03G15/09

CPC分类号： G03G15/0928 ,  G03G15/0818 ,  G03G2215/0614 ,  G03G2215/0641 ,  Y10T428/1355 ,  Y10T428/139 ,  Y10T428/2982

摘要： A developer carrying member (1) comprises a substrate (5) and a coating film (6). The surface of the substrate (5) is covered with the coating film (6), and the coating film (6) is formed with a film-forming composition. The film-forming composition contains a graphite (4), a carbon black or a mixture thereof, a spherical material (2) having a number average particle diameter of from 0.05 to 30 µ, and a binder resin (3).

公开(公告)号：EP0421331A2

公开(公告)日：1991-04-10

申请号：EP90118826.8

申请日：1990-10-01

申请人： CANON KABUSHIKI KAISHA

发明人： Kuribayashi, Tetsuya, c/o Canon Kabushiki Kaisha

IPC分类号： G03G15/09

CPC分类号： G03G15/0928 ,  G03G15/0818 ,  G03G2215/0614 ,  G03G2215/0641 ,  Y10T428/1355 ,  Y10T428/139 ,  Y10T428/2982

摘要： A developer carrying member (1) comprises a substrate (5) and a coating film (6). The surface of the substrate (5) is covered with the coating film (6), and the coating film (6) is formed with a film-forming composition. The film-forming composition contains a graphite (4), a carbon black or a mixture thereof, a spherical material (2) having a number average particle diameter of from 0.05 to 30 µ, and a binder resin (3).

摘要翻译： 显影剂承载构件（1）包括基底（5）和涂膜（6）。 用涂膜（6）覆盖基板（5）的表面，用成膜组合物形成涂膜（6）。 成膜组合物含有石墨（4），炭黑或其混合物，数均粒径为0.05〜30μm的球形材料（2）和粘合剂树脂（3）。

公开(公告)号：EP0155169B1

公开(公告)日：1989-10-18

申请号：EP85301664.0

申请日：1985-03-11

申请人： XEROX CORPORATION

发明人： Hays, Dan A. ,  Wayman, William H.

IPC分类号： G03G15/08 ,  G03G15/14

CPC分类号： G03G15/065 ,  G03G15/0812 ,  G03G15/0818 ,  G03G2215/0614 ,  G03G2215/0641

公开(公告)号：EP0257178A1

公开(公告)日：1988-03-02

申请号：EP87102206.7

申请日：1987-02-17

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yasuda, Sachiko c/o Patent Division ,  Yoshida, Minoru c/o Patent Division ,  Asada, Tomoyuki c/o Patent Division ,  Mukai, Hideo c/o Patent Division

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G15/0877 ,  G03G2215/0614 ,  G03G2215/0636

摘要： In a developing apparatus (8) for developing an electrostatic-latent image by applying a charged developer to the electrostatic-latent image formed on a surface of an image carrier (2), a housing (30) which stores the developer has a developing roller (32) for feeding the developer therefrom to a developing position. A developer supply roller (34) for supplying a triboelectrically charged developer is in rolling contact with the developer roller (32). The developer supply roller (34) has a conductive material, and is rotated while electrostatically holding a developer so as to charge it by friction.

摘要翻译： 在通过将电荷显影剂施加到形成在图像载体（2）的表面上的静电潜像来显影静电潜像的显影装置（8）中，存储显影剂的壳体（30）具有显影辊 （32），用于将显影剂从其中提供到显影位置。 用于供给摩擦带电显影剂的显影剂供给辊（34）与显影辊（32）滚动接触。 显影剂供应辊（34）具有导电材料，并且在静电保持显影剂的同时旋转，以便通过摩擦对其充电。

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.

公开(公告)号：EP1014215A3

公开(公告)日：2001-12-12

申请号：EP99125939.1

申请日：1999-12-23

申请人： NITTO KOGYO CO., LTD.

发明人： Hirayama, Naka

IPC分类号： G03G15/08 ,  C08J9/14

CPC分类号： G03G15/0818 ,  G03G2215/0614 ,  G03G2215/0861

摘要： A developing roller has a core bar (12), an electrically conductive layer (14) formed on the circumferential surface of the core bar (12), and a covering layer (16) formed on the circumferential surface of the conductive layer (14). The covering layer (16) includes a reaction product produced by subjecting a reaction mixture containing a polyol, an isocyanate compound and a both-terminal reactive silicone oil to a reaction condition for them, and has a dynamic friction coefficient against paper of 0.9 or more and less than 1.2.

摘要翻译： 显影辊具有芯棒（12），形成在芯棒（12）的圆周表面上的导电层（14）和形成在导电层（14）的圆周表面上的覆盖层（16） 。 覆盖层（16）包括通过使含有多元醇，异氰酸酯化合物和双末端反应性硅油的反应混合物对其进行反应条件而制备的反应产物，并且具有0.9以上的纸张的动摩擦系数 小于1.2。