| 摘要 |
A corona-charging apparatus for charging successive image area segments of a charge-receiving element, which corona-charging apparatus is capable of adjusting the charging rate from one segment to the next while minimizing the transition region between successive image area segments, includes electrode means for creating a corona discharge and a composite grid between the electrode means and a moving charge-receiving element. The composite grid includes a plurality of conductive controlled grid sets with at least one grid wire per set. The grid sets are spaced in the direction of movement of the charge-receiving element, and the voltage on each grid set is adjustable independently of the voltages on the other grid sets. Regulator means are provided for synchronizing the voltage of each grid set with the movement of the charge-receiving element.
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