公开(公告)号：US3789278A

公开(公告)日：1974-01-29

申请号：US3789278D

申请日：1972-12-20

Applicant: IBM

Inventor： BINGHAM R ,  POQUETTE G ,  CECIL T ,  GALLI G

IPC: G03G15/02 ,  H01J1/14

CPC classification number: G03G15/0291

Abstract: A negatively biased corona discharge system includes a conductive electrode having a thin inorganic dielectric outer layer bonded thereto which is employed as a corona discharge electrode. The discharge system is utilized for uniformly placing a negative charge on an insulator substrate such as an electrophotographic imaging surface. The coating on the electrode acts to suppress the widely spaced emission nodes common to all negatively biased metal corona discharge electrodes. The coated electrode may, therefore, be placed in close proximity to the substrate which it is charging and operated at low emission densities without sacrificing charge uniformity thereby reducing the power requirement of the corona discharge system.

Abstract translation: 负偏压电晕放电系统包括具有与其结合的薄无机电介质外层的导电电极，其被用作电晕放电电极。 放电系统用于将负电荷均匀地放置在诸如电子照相成像表面的绝缘体基底上。 电极上的涂层用于抑制所有负偏压金属电晕放电电极共同的广泛间隔的发射节点。 因此，涂覆的电极可以被放置在靠近基板的位置，该基板在低发射密度下进行充电和操作，而不牺牲电荷均匀性，从而降低电晕放电系统的功率需求。