| 摘要 |
Apparatus for uniformly charging the surface of an insulating member by first charging a portion of the surface to a magnitude smaller than the desired amount of charge by a first charging electrode. The amount of charge thus deposited is subsequently detected and compared with the desired amount of charge to be deposited. As a result of the comparison, a second charging electrode, spaced apart from the first charging electrode, is energized whereby the total charge applied to the portion of the insulating member previously charged is substantially equal to the desired amount of charge.
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