公开(公告)号：US4526130A

公开(公告)日：1985-07-02

申请号：US461195

申请日：1983-01-26

申请人： Kozi Fukuda ,  Keitaro Yamashita

发明人： Kozi Fukuda ,  Keitaro Yamashita

IPC分类号： G03G15/09

CPC分类号： G03G15/0928

摘要： In a developing apparatus comprising an image support having a latent image formed on the surface, a cylindrical sleeve made of a non-magnetic metal material placed so as to face the image support, and a magnetic field-generating means placed in said sleeve, said image support and said sleeve being arranged so that a magnetic developer held on said sleeve can be conveyed to the surface of the aforesaid image support, thereby developing the aforesaid latent image, a conductive or semiconductive coating layer having a thickness of at least 1 .mu.m, a hardness of HV 900 or more and a specific resistance of 10.sup.6 .OMEGA..multidot.cm or less is formed on the surface of said sleeve. This makes the conveyance of the developer good, and enables the development to be well conducted and the wear of the sleeve to be reduced.

摘要翻译： 在包括具有形成在表面上的潜像的图像载体的显影装置中，由非磁性金属材料制成的圆筒形套筒，以与图像载体相对的方式放置，以及设置在所述套筒中的磁场产生装置， 图像支撑件和所述套筒被布置成使得保持在所述套筒上的磁性显影剂可被传送到上述图像支撑体的表面，从而显影上述潜像，具有至少1μm的厚度的导电或半导体涂层 在所述套筒的表面上形成HV 900以上的硬度，电阻率为10×10 -6Ω·cm以下。 这使得显影剂的传送良好，并且能够良好地进行显影，并且减小套筒的磨损。