Invention Grant
US07693461B2 System and method for minimizing residual charge effects in a printing device 有权
用于最小化打印装置中的剩余电荷效应的系统和方法

System and method for minimizing residual charge effects in a printing device
Abstract:
A development unit for a printing device is described. An equalizing element is provided to minimize residual charges which cause ghosting. The equalizing element can, for example, be a roller or a blade positioned downstream of a cleaning nip between the cleaning roller and the development roller and charged to an electric potential which is substantially the same as an electric potential of the development roller. The equalizing element can alternatively, or in addition to being charged to perform equalization, operate to aid in charge residual charge dissipation on the development roller by blocking developer from reaching the development roller downstream of the cleaning roller.
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