公开(公告)号：EP0294824A3

公开(公告)日：1990-09-12

申请号：EP88109255.5

申请日：1988-06-10

申请人： FUJI XEROX CO., LTD.

发明人： Maruyama, Kazuo ,  Noami, Tsuneo ,  Adachi, Koji ,  Sumikawa, Takeshi ,  Furuya, Nobumasa ,  Yamamoto, Toshiro

IPC分类号： G03G15/22 ,  G03G13/22 ,  G03G15/01

CPC分类号： G03G13/22 ,  G03G13/013 ,  G03G13/09

摘要： An image forming method of the present invention comprises: a first toner image formation process for forming a first toner image by forming, on a latent image carrier, a first latent image which corresponds to a first image and developing the first latent image by a first toner charged to one polarity through a development selected from normal and reverse developments so as to correspond to the polarity of the first toner; a second toner image formation process for forming a second toner image by forming, on the latent image carrier, a second latent image which corresponds to a second image and developing the second latent image by a second toner charged to the other polarity by the other development while applying a developing bias; and a transfer treatment process for simultaneously transferring said first and second toner images to a transfer medium; wherein said developing bias VB2 satisfies the following equations:
    |VT1 - VB2| > |VH2 - VB2|      (1)
    |VT1 - VB2| > |VT1 - VH2|      (2)
    where a surface potential of said first toner image is VT1, a background potential in said second toner image forming process is VH2, and the developing bias in said second toner image forming process is VB2.

公开(公告)号：EP0294824A2

公开(公告)日：1988-12-14

申请号：EP88109255.5

申请日：1988-06-10

申请人： FUJI XEROX CO., LTD.

发明人： Maruyama, Kazuo ,  Noami, Tsuneo ,  Adachi, Koji ,  Sumikawa, Takeshi ,  Furuya, Nobumasa ,  Yamamoto, Toshiro

IPC分类号： G03G15/22 ,  G03G13/22 ,  G03G15/01

CPC分类号： G03G13/22 ,  G03G13/013 ,  G03G13/09

摘要： An image forming method of the present invention comprises: a first toner image formation process for forming a first toner image by forming, on a latent image carrier, a first latent image which corresponds to a first image and developing the first latent image by a first toner charged to one polarity through a development selected from normal and reverse developments so as to correspond to the polarity of the first toner; a second toner image formation process for forming a second toner image by forming, on the latent image carrier, a second latent image which corresponds to a second image and developing the second latent image by a second toner charged to the other polarity by the other development while applying a developing bias; and a transfer treatment process for simultaneously transferring said first and second toner images to a transfer medium; wherein said developing bias VB2 satisfies the following equations:
    |VT1 - VB2| > |VH2 - VB2|      (1)
    |VT1 - VB2| > |VT1 - VH2|      (2)
    where a surface potential of said first toner image is VT1, a background potential in said second toner image forming process is VH2, and the developing bias in said second toner image forming process is VB2.

摘要翻译： 本发明的图像形成方法包括：第一调色剂图像形成工艺，用于通过在潜像载体上形成与第一图像相对应的第一潜像并通过第一图像显影第一潜像来形成第一调色剂图像 调色剂通过选自正常和反向开发的显影而被加载到一个极性，以便对应于第一调色剂的极性; 第二调色剂图像形成工艺，用于通过在潜像载体上形成与第二图像相对应的第二潜像并通过另一显影剂以另一极性带电的第二调色剂显影第二潜像来形成第二调色剂图像 同时应用发展中的偏见; 以及用于将所述第一和第二调色剂图像同时转印到转印介质的转印处理工艺; 其中所述显影偏压VB2满足以下等式：其中所述第一调色剂图像的表面电位为VT1，其中所述第一调色剂图像的表面电位为：VT1，...， 所述第二调色剂图像形成处理中的背景电位为VH2，并且所述第二调色剂图像形成处理中的显影偏压为VB2。

公开(公告)号：EP0294824B1

公开(公告)日：1994-04-06

申请号：EP88109255.5

申请日：1988-06-10

申请人： FUJI XEROX CO., LTD.

发明人： Maruyama, Kazuo ,  Noami, Tsuneo ,  Adachi, Koji ,  Sumikawa, Takeshi ,  Furuya, Nobumasa ,  Yamamoto, Toshiro

IPC分类号： G03G15/22 ,  G03G13/22 ,  G03G15/01

CPC分类号： G03G13/22 ,  G03G13/013 ,  G03G13/09

公开(公告)号：EP2233986A2

公开(公告)日：2010-09-29

申请号：EP10155068.9

申请日：2010-03-01

申请人： Fuji Xerox Co., Ltd.

发明人： Furuya, Nobumasa ,  Hino, Toshio

IPC分类号： G03G15/09

CPC分类号： G03G15/0921

摘要： A developing device includes a magnet roll magnetized with plural magnetic poles including a main magnetic pole, a sleeve in a cylindrical shape which is arranged so as to be opposed to an image holding body, and a supporting frame that stably supports the magnet roll in a manner of restraining the magnet roll from rotating in the tangential direction, and supports the sleeve so as to rotate in the tangential direction around the magnet roll. The magnet roll is so arranged that the main magnetic pole is opposed to the image holding body, and a point on the peripheral face where magnetic flux density of the main magnetic pole in the tangential direction at a position along the peripheral face of the magnet roll is zero is set at a position predetermined with respect to a position where the magnet roll comes most closely to the image holding body.

摘要翻译： 一种显影装置，包括具有多个磁极包括主磁极，在圆筒状的套筒所有这一切都被布置为相对地图像保持体磁化的磁体辊，并且支撑框架并稳定地支撑在一个磁辊 从抑制在切线方向旋转的磁辊的方式，并支持所述套筒，以便在围绕磁体辊沿切向旋转。 磁辊是这样安排的并与主磁极对置于图像保持体，并且在周面上的点，其中在沿所述磁体辊的周面的位置上在切线方向上的主磁极的磁通密度 其中磁辊来最紧密到所述图像保持体是零被设置在相对于一预定位置的位置处。