Charging device having a conductive particle impregnated strand lined contact member
Patent 4455078 Issued on June 19, 1984. Estimated Expiration Date: 
October 13, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 13, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2774921 3671806 3691993 3900591 Fibres Conductive, extrudable polymer composition of poly(&3xb5;-caproamide) and carbon black Charge process with a carbon fiber brush electrode Patent #: 4336565 InventorsAssigneeApplicationNo. 06/310721 filed on 10/13/1981US Classes:399/175, Brush252/511, Resin, rubber, or derivative thereof containing361/221Brush- or roller-type structureExaminersPrimary: Moses, R. L.Attorney, Agent or FirmInternational ClassG03G 15/02 (20060101)Foreign Application Priority Data1980-10-14 JPAbstractA charging device comprises a contact piled cloth which is formed of pliable material, has an electric resistance chosen to be 108 Ω.cm and contacts with a photosensitive layer of a photosensitive drum, an electrode which is electrically connected to the contact piled cloth and has an electric resistance lower than the predetermined electric resistance of the contact piled cloth, and D.C. power source and A.C. power source for supplying a voltage on the electrode to charge the photosensitive layer. The contact piled cloth is provided with a multitude of raised furs formed of artificial fibers with conductive particles dispersed therein. | |
