公开(公告)号：US6078769A

公开(公告)日：2000-06-20

申请号：US136106

申请日：1998-08-18

申请人： Kenneth D. Fraser ,  Peter Taylor ,  Steve Cormier

发明人： Kenneth D. Fraser ,  Peter Taylor ,  Steve Cormier

IPC分类号： B41F13/08 ,  B41F31/26 ,  G03G15/08

CPC分类号： G03G15/0818 ,  B41F13/085 ,  B41F31/26

摘要： A cylinder (2) for a printing machine, particularly a developing cylinder in an electrographic printing machine, having a rigid, elongated shaft body (10) and a rigid hollow body (11) whose exterior forms the covering and the top and bottom surfaces of the cylinder. In order that, during operation under constant conditions, the cylinder can roll properly against another rigid cylinder of the printing machine, flat sides (12,13) of the hollow body (11) which form the top and bottom surfaces of the cylinder, have centrical bore holes that are larger than the diameter of the shaft body (10) in the area of the flat sides. Located in the space between the shaft body and the flat sides of the hollow body is an elastic material (14,15) which joins the flat sides of the hollow body to the shaft body. Inside the hollow body, in the center between the flat sides of the hollow body one or a plurality of braces (16) are arranged which extend transversely to the figure axis of the shaft body, and which firmly join the hollow cylindrical covering of the hollow body to the shaft body, so that the figure axis of the hollow body and the figure axis of the shaft body coincide in a normal state, and intersect at a small angle under the influence of outer forces.

摘要翻译： 一种用于印刷机的圆筒（2），特别是电印机中的显影圆筒，具有刚性的细长轴体（10）和刚性中空本体（11），其外部形成覆盖层，顶表面和底表面 气瓶。 为了在恒定条件下操作时，气缸可以适当地滚动到印刷机的另一个刚性圆柱体上，形成圆柱体的顶表面和底表面的中空体（11）的平坦侧面（12,13）具有 比在平坦侧面的区域中的轴体（10）的直径大的中心钻孔。 位于轴体和中空体的平坦侧面之间的空间中是将中空体的平坦侧面连接到轴体的弹性材料（14,15）。 在空心体的内部，在空心体的平坦侧面之间的中心处设置有一个或多个支架（16），其横向于轴体的图形轴线延伸，并且牢固地连接到中空的中空圆柱形覆盖物 从而使中空体的图形轴与轴体的图形轴线正常地一致，并且在外力的影响下以小角度相交。

公开(公告)号：US6055402A

公开(公告)日：2000-04-25

申请号：US110924

申请日：1998-07-06

申请人： Uwe Angst ,  Carsten Schoenfeld ,  Gerhard Bartscher ,  Steve Cormier ,  Kenneth D. Fraser ,  Anton Rodi

发明人： Uwe Angst ,  Carsten Schoenfeld ,  Gerhard Bartscher ,  Steve Cormier ,  Kenneth D. Fraser ,  Anton Rodi

IPC分类号： G03G9/087 ,  G03G15/06 ,  G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0617

摘要： A device and a method for developing an electrostatic latent image, which is located on a movable image carrier (1), using a non-conductive single-component toner. The device includes a toner feed device (3), in order to transport toner particles (5) from a toner reservoir (4) and charge them electrically, a rotationally mounted developing roller (2) to receive the charged toner particles from the toner feed device and to transport the toner particles which it holds into a gap between the developing roller and the image carrier, and a rotationally mounted doctor roller (6), which is arranged in the path of the toner particles from the toner feed device to the developing roller, to produce a uniform toner layer with a defined thickness on the developing roller. The surface of the developing roller (2) and the surface of the doctor roller (6) are separated from one another by a gap which is wider than the average diameter of the toner particles (5). In this manner, electrographic printing with high quality and at high speed is made possible.

摘要翻译： 使用非导电单组分调色剂位于可移动图像载体（1）上的用于显影静电潜像的装置和方法。 该装置包括调色剂供给装置（3），以便从调色剂储存器（4）输送调色剂颗粒（5）并对它们进行充电，旋转安装的显影辊（2）从调色剂进料接收带电的调色剂颗粒 并且将其保持的调色剂颗粒输送到显影辊和图像载体之间的间隙中;以及旋转安装的刮墨辊（6），其布置在调色剂颗粒从调色剂供给装置到显影剂 辊，以在显影辊上产生具有确定厚度的均匀的调色剂层。 显影辊（2）的表面和刮墨辊（6）的表面通过比调色剂颗粒（5）的平均直径更宽的间隙彼此分离。 以这种方式，可以实现高质量和高速度的电印。