| 摘要 |
A toner mechanism is shown which utilizes a paper roller to pass a sheet of paper between the roller and a toner brush where toner is applied to the surface of the paper and attracted to electrostatically charged portions on the surface thereof. The toner is retained within a reservoir whose opening is filled by the brush. The paper roller, located adjacent to the brush, draws the paper between the brush and roller. Rotation of the brush causes the toner to pass out of the opening within the reservoir while movement of the paper and roller tends to push the toner back into the reservoir through the opening. The ratio of rotational rates between the brush and paper roller and the size of the reservoir opening establish a meniscus of toner which is in equilibrium and thus self-regulating.
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