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Toner is attracted to the imaging drum in which of the following steps of a laser printer imaging process?

A Developing.

During the developing step, toner is drawn to areas of the drum where the laser has written an image. Those areas have a modest negative charge (-100 VDC), whereas unexposed areas of the drum and the developing roller (to which the toner is adhered) have a charge of -600 VDC each.

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