Voltage sensing in A.C. corotrons
November 23, 2007. 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 3604925 Operating point regulation for a corona discharge device Charge level control for an electrochargeable medium Charge control system Corona generating device Corona-charging apparatus Apparatus for maintaining distinct edges between two colors in a two-color image forming device Corona-charging apparatus Image forming apparatus Patent #: 4699499 InventorAssigneeApplicationNo. 07/124228 filed on 11/23/1987US Classes:399/55, Bias control250/325, Charging of moving object324/72, TESTING POTENTIAL IN SPECIFIC ENVIRONMENT (E.G., LIGHTNING STROKE)399/73Electrometer detailExaminersPrimary: Prescott, A. C.Attorney, Agent or FirmInternational ClassesG03G 15/16 (20060101)G03G 21/06 (20060101) G03G 15/02 (20060101) G03G 15/00 (20060101) H01T 19/00 (20060101) AbstractA voltage measuring device in an electrostatographic arrangement having a photoreceptor member charged to a uniform voltage level prior to imagewise discharge, and including at least a first corotron having a corona producing coronode driven with an A.C. voltage source for neutralizing charge on a surface in the electrostatographic arrangement. A thin conductive wire electrode is arranged parallel and across the photoreceptor surface and parallel to the coronode, to derive a current proportional to the voltage on the photoreceptor surface. Voltage measurements may be taken as a known function of the current derived in the electrode. | |
