公开(公告)号：EP1251409A3

公开(公告)日：2006-03-08

申请号：EP02008725.0

申请日：2002-04-18

申请人： CANON KABUSHIKI KAISHA

发明人： Hosokawa, Takahiro ,  Ishiyama, Harumi ,  Chigono, Yasunori ,  Hirabayashi, Jun

IPC分类号： G03G15/02

CPC分类号： G03G15/0233 ,  G03G2221/183

摘要： A charging member for charging a member to be charged, includes an elastic foam member provided at a surface of the charging member, the elastic foam member including a plurality of cell portions with wall portion defining the cell portions, wherein gaps connecting said cell portions have areas which are not less than 5% and not more than 50%, for respective cells.

摘要翻译： 一种充电部件进行充电被充电部件，包括设置在所述充电部件的表面上设置弹性泡沫构件上，弹性泡沫构件包括细胞部分与壁部分限定的单元部分，worin连接所述单元部分的间隙具有多个 哪些方面是不低于5％，不超过50％，为respectivement细胞。

公开(公告)号：EP1251409A2

公开(公告)日：2002-10-23

申请号：EP02008725.0

申请日：2002-04-18

申请人： CANON KABUSHIKI KAISHA

发明人： Hosokawa, Takahiro ,  Ishiyama, Harumi ,  Chigono, Yasunori ,  Hirabayashi, Jun

IPC分类号： G03G15/02

CPC分类号： G03G15/0233 ,  G03G2221/183

摘要： A charging member for charging a member to be charged, includes an elastic foam member provided at a surface of the charging member, the elastic foam member including a plurality of cell portions with wall portion defining the cell portions, wherein gaps connecting said cell portions have areas which are not less than 5% and not more than 50%, for respective cells.

摘要翻译： 一种充电部件进行充电被充电部件，包括设置在所述充电部件的表面上设置弹性泡沫构件上，弹性泡沫构件包括细胞部分与壁部分限定的单元部分，worin连接所述单元部分的间隙具有多个 哪些方面是不低于5％，不超过50％，为respectivement细胞。

公开(公告)号：EP0864936B1

公开(公告)日：2005-12-14

申请号：EP98103822.7

申请日：1998-03-04

申请人： CANON KABUSHIKI KAISHA

发明人： Chigono, Yasunori ,  Nagase, Yukio ,  Ishiyama, Harumi ,  Hirabayashi, Jun

IPC分类号： G03G15/02

CPC分类号： G03G15/0216 ,  G03G15/0241 ,  G03G2221/0005

公开(公告)号：EP0984332B1

公开(公告)日：2003-12-10

申请号：EP99117196.8

申请日：1999-09-01

申请人： CANON KABUSHIKI KAISHA

发明人： Chigono, Yasunori ,  Ishiyama, Harumi ,  Hirabayashi, Jun

IPC分类号： G03G13/02

CPC分类号： G03G13/025 ,  G03G2215/021

公开(公告)号：EP0709746A1

公开(公告)日：1996-05-01

申请号：EP95307750.0

申请日：1995-10-31

申请人： CANON KABUSHIKI KAISHA

发明人： Chigono, Yasunori ,  Ishiyama, Harumi ,  Furuya, Tadashi ,  Mashimo, Seiji

IPC分类号： G03G15/02

CPC分类号： B82Y15/00 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/093 ,  G03G15/0241 ,  G03G2215/022

摘要： The image forming method comprises, electrostatically charging an image bearing member using a contact charging assembly (2), forming an electrostatic latent image on the image bearing member (1) thus charged, developing the electrostatic latent image with a magnetic toner to form a toner image and transferring the toner image to a transfer medium, wherein the charging assembly (2) comprises a magnetic brush (23) formed from conductive magnetic particles magnetically bound, and the charging assembly comes into contact with the image bearing member (1) to charge the surface of the image bearing member by directly injecting charges into the electron level present on the surface of the image bearing member and the magnetic toner has a value of σ·D·δ of 150 or less, where the value is obtained by multiplying i) a magnetization quantity σ (Am/kg) in a magnetic field of 1 K oersted as measured by a vibration magnetometer, ii) a weight average particle diameter (D₄) D (µm) of the magnetic toner and iii) a density δ (g/cm³) thereof.

摘要翻译： 图像形成方法包括使用接触充电组件（2）对图像承载部件静电充电，在如此充电的图像承载部件（1）上形成静电潜像，用磁性调色剂显影静电潜像，以形成调色剂 图像并将调色剂图像转印到转印介质上，其中充电组件（2）包括由磁性结合的导电磁性颗粒形成的磁刷（23），并且充电组件与图像承载部件（1）接触以充电 图像承载部件的表面通过将电荷直接注入存在于图像承载部件的表面上的电子位置和磁性调色剂中，具有σ.D的值。 δ为150以下，其中通过将i）通过振动磁力计测量的1K的磁场中的磁化量σ（Am <2> / kg）乘以i获得的值，ii）重均粒径（ D4）D（μm），和iii）其密度δ（g / cm 3）。

公开(公告)号：EP1355200A1

公开(公告)日：2003-10-22

申请号：EP03008920.5

申请日：2003-04-16

申请人： CANON KABUSHIKI KAISHA

发明人： Chigono, Yasunori ,  Okuda, Koichi ,  Shimizu, Yasushi ,  Yoshida, Masahiro

IPC分类号： G03G15/02

CPC分类号： G03G15/0216

摘要： A contact-type charging member (20) for charging a member to be charged (1) and an image forming apparatus provided with the same have electrically conductive particles (m) and an electrically conductive particle bearing member (2) having elasticity and bearing the electrically conductive particles thereon, and the degree of cohesion of the electrically conductive particles is 0.1% to 85%. Thereby, the non-uniformity of a halftone image peculiar to particle charging can be improved.

摘要翻译： 用于对被充电元件（1）充电的接触式充电元件（20）和具有该触点型充电元件的图像形成设备具有导电颗粒（m）和具有弹性的导电颗粒承载元件（2） 导电性粒子，导电性粒子的内聚度为0.1％〜85％。 因此，可以提高粒子充电特有的半色调图像的不均匀性。

公开(公告)号：EP0984332A2

公开(公告)日：2000-03-08

申请号：EP99117196.8

申请日：1999-09-01

申请人： CANON KABUSHIKI KAISHA

发明人： Chigono, Yasunori ,  Ishiyama, Harumi ,  Hirabayashi, Jun

IPC分类号： G03G13/02

CPC分类号： G03G13/025 ,  G03G2215/021

摘要： A charging apparatus for charging a member to be charged, the charging apparatus includes a charging member for electrically charging the member to be charged; and electroconductive particle supplying means for loosening electroconductive particles stored in the form of granules each comprising aggregated electroconductive particles and supplying the loosened electroconductive particles to the charging member.

公开(公告)号：EP0863447A2

公开(公告)日：1998-09-09

申请号：EP98103824.3

申请日：1998-03-04

申请人： CANON KABUSHIKI KAISHA

发明人： Ishiyama, Harumi ,  Nagase, Yukio ,  Chigono, Yasunori ,  Hirabayashi, Jun

IPC分类号： G03G15/02

CPC分类号： G03G15/0233 ,  G03G15/0216

摘要： A charging apparatus includes a charging member (2), to which a voltage is applicable, for charging a member to be charged (1); the charging member (2) including: an flexible member (2b) for forming a nip (n) with the member to be charged (1), wherein the flexible member (2b) is moved with a peripheral speed difference between surfaces of the flexible member (2b) and the member to be charged (1) at the nip (n); and electroconductive particles (3) in the nip (n).

摘要翻译： 充电装置包括：可充电电压的充电构件（2），用于对被充电构件（1）充电; 充电构件（2）包括：用于与待充电构件（1）形成压区（n）的柔性构件（2b），其中柔性构件（2b）以柔性构件（2b）的表面之间的圆周速度差移动 构件（2b）和要充电的构件（1）在压区（n）处; 和导电颗粒（3）在辊隙（n）中。

公开(公告)号：EP0789284A1

公开(公告)日：1997-08-13

申请号：EP96306519.8

申请日：1996-09-09

申请人： CANON KABUSHIKI KAISHA

发明人： Hirabayashi, Jun ,  Ito, Nobuyuki ,  Ishiyama, Harumi ,  Furuya, Tadashi ,  Chigono, Yasunori ,  Mashimo, Seiji

IPC分类号： G03G15/02

CPC分类号： G03G15/0241 ,  G03G2215/022

摘要： An image forming apparatus includes an image bearing member; a charging member contactable to said image bearing member for effecting contact charging of said image bearing member, said charging member being capable of being supplied with a voltage having a DC component and an AC component, and said charging member being provided with an electrode for receiving the voltage; wherein the following is sataisfied: when an electric field formed between said image bearing member and said electrode is not more than |E/d SD |[V/m], a resistance of said charging member per unit area of contact between said image bearing member and said charging member is larger than 20E/(wCV DC )[Ωm 2 ]    and is larger than the resistance when the electric field is more than |E/d SD |[V/m], and not more than |(E+V DC )/d SD |[V/m]
   where E[V] is an amplitude of the AC component; w[rad] is an angular velocity of t AC component; d SD [m] is a minimum distance between said electrode and said image bearing member; C[F/m 2 ] is an electrostatic capacity per unit area of said image beating member; and V DC [V] is a voltage of the DC component.

摘要翻译： 图像形成装置包括图像承载部件; 与所述图像承载部件可接触的充电部件，用于实现所述图像承载部件的接触充电，所述充电部件能够被提供具有直流分量和交流分量的电压，并且所述充电部件设置有用于接收的电极 电压; 其特征在于：当所述图像承载部件和所述电极之间形成的电场不大于| E / dSD·△V / m·u时，所述充电部件在所述图像承载部件和所述 充电构件大于$，并且大于电场大于|\; E\; /\; dSDÄV/\; mÜ时的电阻，并且不大于|（E\; +\; VDC）/\; dSDÄV/\; mÜ其中EÄVÜ为\; AC分量的振幅;\; wÄradÜ是t分量的角速度;\; dSDÄmÜ是所述电极和所述图像承载部件之间的最小距离;\; CÄF/\; m\; 2是所述图像打击构件的每单位面积的静电容量;\; VDCÄVÜ是直流分量的电压。\mathop{\mathrm{image}}$

公开(公告)号：EP0735435A1

公开(公告)日：1996-10-02

申请号：EP96302054.0

申请日：1996-03-26

申请人： CANON KABUSHIKI KAISHA

发明人： Ishiyama, Harumi ,  Furuya, Tadashi ,  Yamamoto, Takeo ,  Chigono, Yasunori ,  Mashimo, Seiji

IPC分类号： G03G15/02

CPC分类号： G03G15/0241 ,  G03G2215/022

摘要： A charging device (2) includes a charging member for charging a movable member to be charged; the charging member including a carrying member (21) for carrying a magnetic particle layer (23,24) contactable to the member (1) to be charged, the carrying member being adapted be supplied with a voltage; wherein a direction of a magnetic force acting on magnetic particles in the magnetic particle layer at a downstream end position with respect to a movement direction of the member to be charged at a portion where the member to be charged and the magnetic particle layer are contacted, is opposite from the member to be charged with respect to a tangent line of the member to be charged at the end position.

摘要翻译： 充电装置（2）包括用于对可充电的可动件充电的充电构件; 所述充电构件包括用于承载与要充电的构件（1）可接触的磁性颗粒层（23,24）的承载构件（21），所述承载构件适于被提供电压; 其特征在于，相对于所述被充电部件与所述磁性粒子层接触的部分的被充电部件的移动方向在下游端位置处对所述磁性粒子层中的磁性粒子的磁力的方向， 相对于要在最终位置被充电的构件的切线被填充的构件相对。