| 摘要 |
A charging system for uniformly charging an imaging surface moving in a predefined path including a dicorotron for charging the imaging surface; a discorotron, adjacent to and downstream from said dicortron, for charging the imaging surface; the discorotron including a coronode, a grid and a shield a first power supply for biasing the grid and the shield; a second power supply for energizing each of the coronode; means for determining a voltage level of the imaging surface and generating a feedback signal of the voltage level; and a controller, responsive to the feedback signal and in communication with the first power supply, for controlling the energiziation of the grid and the shield.
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