公开(公告)号：US5342717A

公开(公告)日：1994-08-30

申请号：US12913

申请日：1993-02-03

申请人： Der-Tarng Su ,  Wen-Jer Chen ,  Jeng-Yue Wu ,  Ming-Chu Wu

发明人： Der-Tarng Su ,  Wen-Jer Chen ,  Jeng-Yue Wu ,  Ming-Chu Wu

IPC分类号： G03G15/02 ,  G03G13/02

CPC分类号： G03G15/0233 ,  Y10S430/138 ,  Y10T428/2495

摘要： A direct contact type charging component for use in electrophotographic process containing a protective surface layer which comprises a polyether-ester-amide block copolymer. The copolymer is environmentally stably having a volume resistivity between 10.sup.6 Ohm-cm and 10.sup.12 Ohm-cm and a Shore hardness between Shore D 5 and Shore D 90. During the electrophotographic process, a voltage is applied externally to the charging component to cause a charged component, which typically comprises a photo-conductive drum, to become electrostatically charged. In the preferred embodiment, the voltage consists of a direct voltage of .+-.200 to .+-.2,000 V overlapped with an alternating voltage having a peak-to-peak voltage of 4,000 V.

摘要翻译： 一种用于包含聚醚 - 酯 - 酰胺嵌段共聚物的保护性表面层的电子照相方法中的直接接触型充电组分。 该共聚物在体积电阻率介于106欧姆 - 厘米-1 1012欧姆 - 厘米和邵氏硬度邵氏D 5和肖氏D 90之间具有环境稳定性。在电子照相过程中，在充电部件的外部施加电压，引起充电 组件，其通常包括光导电鼓，以使其成为静电电荷。 在优选实施例中，电压由与峰值电压为4,000V的交流电压重叠的+/- 200至+/- 2,000V的直流电压组成。

公开(公告)号：US6070033A

公开(公告)日：2000-05-30

申请号：US982802

申请日：1997-10-06

申请人： Yuji Hiraoka ,  Boba Wang ,  Sheng-Jeng Chang ,  Ming-Chu Wu

发明人： Yuji Hiraoka ,  Boba Wang ,  Sheng-Jeng Chang ,  Ming-Chu Wu

IPC分类号： G03G15/02 ,  G03G17/00

CPC分类号： G03G15/0291 ,  G03G2215/028

摘要： The specification discloses an electrophotographic image forming system. The system includes a photoconductor connected to a first electric potential constituting substantially an elongated cylindrical drum provided for rotating around an axis along an elongated direction of the cylindrical drum having an external charging surface disposed thereon. The electrophotographic system further includes a non-contact charger which includes a plurality of mutually insulated conductive films each having a sharp edge pointing perpendicularly to the charging surface. The non-contact charger further includes a packaging frame for securely attaching to and supporting the plurality of mutually insulated conductive films thereon. The plurality of mutually insulated conductive films are connected to a second electric potential different from the first electric potential for activating an electric discharge between the sharp edges of the conductive film and the charging surface.

摘要翻译： 该说明书公开了一种电子照相成像系统。 该系统包括连接到构成基本上细长的圆柱形鼓的第一电位的光电导体，所述第一电位用于围绕沿着圆柱形鼓的细长方向围绕轴线旋转的第一电位，其具有设置在其上的外部充电表面。 电子照相系统还包括非接触充电器，其包括多个相互绝缘的导电膜，每个导电膜具有垂直于充电表面指向的尖锐边缘。 非接触充电器还包括用于牢固地附接到其上并且支撑多个彼此绝缘的导电膜的包装框架。 多个相互绝缘的导电膜连接到不同于第一电位的第二电位，用于激活导电膜的尖锐边缘与充电表面之间的放电。