公开(公告)号：US5024181A

公开(公告)日：1991-06-18

申请号：US520117

申请日：1990-05-07

申请人： Hisashi Shoji ,  Akihiko Tamura ,  Masahiko Itaya ,  Hiroshi Fuma ,  Shinobu Soma

发明人： Hisashi Shoji ,  Akihiko Tamura ,  Masahiko Itaya ,  Hiroshi Fuma ,  Shinobu Soma

IPC分类号： G03G13/09 ,  G03G15/09

CPC分类号： G03G13/09 ,  G03G15/09

摘要： A method of forming a multicolor toner image on an electrostatic latent image carrying member wherein developer containing a carrier and toner is transported to a developing region on a cylindrically shaped outer sleeve member of a developer transporting unit. Inside the sleeve there is provided at least one pair of magnets, the magnetic poles of which face the inner surface of the sleeve and are so arranged as to be rotatable, relative to each other, around the center axis of the sleeve. The amount of transported toner is regulated so that the amount of toner on the sleeve [mt], in mg/cm.sup.2, the peripheral speed of the image surface [V.sub.d ] and the peripheral speed of the sleeve member [V.sub.sl ] satisfy the following formulas:.vertline.V.sub.sl /V.sub.d .vertline..times.mt.gtoreq.0.4 mg/cm.sup.2.vertline.V.sub.sl /V.sub.3 .gtoreq.10

摘要翻译： 在静电潜像承载构件上形成多色调色剂图像的方法，其中含有载体和调色剂的显影剂被输送到显影剂传送单元的圆柱形外套筒构件上的显影区域。 在套筒内部设置有至少一对磁体，其磁极面对套筒的内表面，并且被布置为围绕套筒的中心轴线相对于彼此旋转。 调节运送调色剂的量，使得套筒上的调色剂数量（mg / cm2），图像面的圆周速度[Vd]和套筒构件的圆周速度[Vs1]满足下式 ：| Vsl / Vd|xmt> / = 0.4mg / cm2 | Vsl / V3> / = 10

公开(公告)号：US4908291A

公开(公告)日：1990-03-13

申请号：US273107

申请日：1988-11-16

申请人： Hiroshi Fuma ,  Akihiko Tamura ,  Masahiko Itaya ,  Hisashi Shoji ,  Shinobu Soma

发明人： Hiroshi Fuma ,  Akihiko Tamura ,  Masahiko Itaya ,  Hisashi Shoji ,  Shinobu Soma

IPC分类号： G03G15/09

CPC分类号： G03G15/09

摘要： The present invention provides a method of regulating the thickness of developer layer formed on a developer-transporting means by transporting the layer to a layer thickness-regulating means disposed so as to face with the developer transporting means, pressing the layer by the layer thickness-regulating means so that the layer thickness-regulating distance of the pressing portion between the layer thickness-regulating means and the developer-transporting means can be made substantially equal to the diameter of single developer particle, and allowing the layer to pass through the pressing portion while keeping the layer thickness-regulating distance substantially equal to the diameter of single developer particle.

摘要翻译： 本发明提供了一种调节显影剂输送装置形成的显影剂层的厚度的方法，该方法是将该层转移到与显影剂传送装置相对设置的层厚度调节装置， 使得层厚度调节装置和显影剂传送装置之间的按压部分的层厚度调节距离可以大致等于单个显影剂颗粒的直径，并且允许该层通过按压部分 同时保持层厚度调节距离基本上等于单个显影剂颗粒的直径。

公开(公告)号：US4669864A

公开(公告)日：1987-06-02

申请号：US823174

申请日：1986-01-27

申请人： Hisashi Shoji ,  Satoshi Haneda ,  Seiichiro Hiratsuka ,  Hiroshi Fuma ,  Shinobu Soma ,  Masahiko Itaya ,  Akihiko Tamura ,  Kazushi Hayakawa

发明人： Hisashi Shoji ,  Satoshi Haneda ,  Seiichiro Hiratsuka ,  Hiroshi Fuma ,  Shinobu Soma ,  Masahiko Itaya ,  Akihiko Tamura ,  Kazushi Hayakawa

IPC分类号： G03G15/01 ,  G03G21/00 ,  G03G15/00

CPC分类号： G03G21/0005 ,  G03G15/0105

摘要： An image forming apparatus having a cleaning device arranged on the outer periphery of an image retainer, and bringing into and out of abutment against the image retainer, wherein the cleaning device comprises a first cleaning member and a second cleaning member arranged downstream of the first cleaning member in the moving direction of the surface of the image retainer. A cleaning operation of the second cleaning member against the image retainer is conducted according to a time at which the cleaning operation of the first cleaning member against the image retainer is conducted.

摘要翻译： 一种图像形成装置，具有布置在图像保持器的外周上并且与图像保持器抵接的清洁装置，其中清洁装置包括第一清洁构件和布置在第一清洁器的下游的第二清洁构件 构件在图像保持器的表面的移动方向上。 根据第一清洁构件对图像保持器的清洁操作的进行时间，进行针对图像保持器的第二清洁构件的清洁操作。

公开(公告)号：US4674860A

公开(公告)日：1987-06-23

申请号：US766770

申请日：1985-08-16

申请人： Hiroshi Tokunaga ,  Shinobu Soma ,  Naoki Aoki ,  Tatsufumi Kusuda

发明人： Hiroshi Tokunaga ,  Shinobu Soma ,  Naoki Aoki ,  Tatsufumi Kusuda

IPC分类号： G03G15/16

CPC分类号： G03G15/167 ,  G03G15/1695 ,  G03G2215/0174 ,  G03G2215/1619 ,  G03G2215/1657

摘要： An image transfer device which transfers a charged toner carried on an image carrier onto a copying material comprises a transfer drum having a conductive base and an insulating surface, the transfer drum being arranged opposite to the image carrier. An electrical charge is applied to the copying material in advance of the copying material arriving at the insulating surface of the transfer drum. An electrical charge is also provided on the surface of the transfer drum in advance of the copying material arriving at the insulating surface of the transfer drum for attracting the copying material to the surface of the transfer drum and to maintain the attraction by the charges during a copying operation. In place of providing a specified charge on the surface of the transfer drum, a bias voltage can be applied to the conductive base of the transfer drum to provide the attraction force for improving attraction of the copying material to the surface of the transfer drum and to maintain the attraction during a copying operation.

摘要翻译： 将承载在图像载体上的带电调色剂转印到复印材料上的图像转印装置包括具有导电基底和绝缘表面的转印鼓，转印鼓布置成与图像载体相对。 在复印材料到达转印鼓的绝缘表面之前，向复印材料施加电荷。 在复制材料到达转印鼓的绝缘表面之前，还要在转印鼓的表面上提供电荷，以便将复制材料吸引到转印鼓的表面，并且保持在转印鼓的表面处的吸引力 复印操作。 代替在转鼓的表面上提供指定的电荷，可以将偏压施加到转印鼓的导电基底上，以提供吸引力，以提高复印材料对转印鼓表面的吸引力，以及 在复印操作期间保持吸引力。