公开(公告)号：US20080175625A1

公开(公告)日：2008-07-24

申请号：US12007790

申请日：2008-01-15

申请人： Hiroshi GOTO ,  Chikara TSUTSUI ,  Takayuki TAKAI

发明人： Hiroshi GOTO ,  Chikara TSUTSUI ,  Takayuki TAKAI

IPC分类号： G03G15/00

CPC分类号： G03G15/0808 ,  G03G15/065 ,  G03G2215/0607

摘要： A developing apparatus for visualizing an electrostatic latent image on an electrostatic latent image bearing member by using a developer including toner and carrier particles, has a developer including toner and carrier particles, a first transport member, a second transport member positioned to oppose to the first transport member across a first region and to the electrostatic latent image bearing member across a second region. A first electric field forming unit forms a first electric field between the first and second transport members to move the toner particles from the first transport member to the second transport member. A second electric field forming unit forms a second electric field between the second transport member and the electrostatic latent image bearing member to move the toner particles from the second transport member to the electrostatic latent image bearing member and thereby to visualize an electrostatic latent image on the image into a visible image. The developer further includes charging particles releasably retained on surfaces of the toner particles. Once released from the toner particles and then held on surfaces of the carrier particles, the third particles function to provide an electric charge of the first polarity to the toner particles by the contact therewith.

摘要翻译： 通过使用包含调色剂和载体颗粒的显影剂使静电潜像承载部件上的静电潜像可视化的显影装置具有包括调色剂和载体颗粒的显影剂，第一传送部件和与第一传送部件相对的第二传送部件 运输构件穿过第一区域并且穿过第二区域到静电潜像承载构件。 第一电场形成单元在第一和第二输送构件之间形成第一电场，以将调色剂颗粒从第一输送构件移动到第二输送构件。 第二电场形成单元在第二传送构件和静电潜像承载构件之间形成第二电场，以将调色剂颗粒从第二传送构件移动到静电潜像承载构件，从而使静电潜像可视化 图像变成可见的图像。 显影剂还包括可释放地保留在调色剂颗粒表面上的带电颗粒。 一旦从调色剂颗粒中释放出来，然后将其保持在载体颗粒的表面上，则第三颗粒的作用是通过与调色剂颗粒的接触来提供第一极性的电荷给调色剂颗粒。

公开(公告)号：US20100322672A1

公开(公告)日：2010-12-23

申请号：US12820189

申请日：2010-06-22

申请人： Junji MURAUCHI ,  Chikara TSUTSUI ,  Tetsuya KAGAWA ,  Hiroaki TAKADA

发明人： Junji MURAUCHI ,  Chikara TSUTSUI ,  Tetsuya KAGAWA ,  Hiroaki TAKADA

IPC分类号： G03G15/08

CPC分类号： G03G15/0887 ,  G03G15/0853 ,  G03G15/0893 ,  G03G2215/0822 ,  G03G2215/0838

摘要： A housing of a developing apparatus is provided with a conveying member and two agitating members. A guide is provided in an inner bottom surface of the housing between two agitating members. A guide is formed into a mountain shape with wide foot portion in a cross sectional shape which is orthogonal to an axial direction of rotating shafts of the agitating members. The guide is arranged in such a manner that a gap between respective outermost portions of two agitating members, and an inner bottom surface of the housing and the guide becomes equal to or more than 1.5 mm and less than 3 mm. Further, each of two agitating members rotates in a direction from the below to the above at a position of the guide.

摘要翻译： 显影装置的壳体设置有输送构件和两个搅拌构件。 引导件设置在两个搅拌构件之间的壳体的内底表面中。 引导件形成为具有宽的脚部的山形，其横截面形状与搅拌构件的旋转轴的轴向正交。 引导件布置成使得两个搅拌构件的相应最外部分之间的间隙以及壳体和引导件的内底表面等于或大于1.5mm且小于3mm。 此外，两个搅拌构件中的每一个在引导件的位置处从下到上的方向旋转。

公开(公告)号：US20100322675A1

公开(公告)日：2010-12-23

申请号：US12820444

申请日：2010-06-22

申请人： Chikara TSUTSUI ,  Junji Murauchi ,  Tetsuya Kagawa ,  Hiroaki Takada

发明人： Chikara TSUTSUI ,  Junji Murauchi ,  Tetsuya Kagawa ,  Hiroaki Takada

IPC分类号： G03G15/08

CPC分类号： G03G15/0822 ,  G03G2215/0822

摘要： A housing of a developing apparatus is provided with a conveying member and two agitating members. A guide is provided in an inner bottom surface of the housing between the agitating members. The guide has a mountain shape with wide foot portion in a cross sectional shape which is orthogonal to an axial direction of rotating shafts of the agitating members. The agitating members are arranged in such a manner that gaps between respective outermost portions thereof and the inner bottom surface of the housing and the guide become equal to or more than 1.5 mm and less than 3 mm. The agitating members rotate from the below to the above in a portion in which they are opposed to each other. A discharge portion is provided on a downstream side of a developer agitating portion in a developer conveying direction of the first and second agitating members.

摘要翻译： 显影装置的壳体设置有输送构件和两个搅拌构件。 引导件设置在所述壳体的内部底表面之间的所述搅拌构件之间。 该导向件具有宽的脚部的山形，其横截面形状与搅拌构件的旋转轴的轴向正交。 搅拌构件以这样的方式设置，使得其各个最外部分与壳体的内底表面之间的间隙和引导件变得等于或大于1.5mm且小于3mm。 搅拌构件在它们彼此相对的部分中从下到上旋转。 在第一和第二搅拌构件的显影剂输送方向上的显影剂搅拌部的下游侧设置有排出部。