| 摘要 |
Charging devices which are used for charging and transfer and for charging and pretransfer in color electrophotographic printing. A charging device is used for charging a photoreceptor in preparation for exposure and also for pretransfer charging of a composite color image to ensure that all toner particles have the correct polarity. A subsequent charging device is used for charging the photoreceptor and for transferring a composite color image onto a substrate.
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