Cleaning and spots blade lubricating method and apparatus

Electrophotography – Cleaning of imaging surface – Including lubricant

Reexamination Certificate

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C399S350000

Reexamination Certificate

active

11182974

ABSTRACT:
A cleaning and spots blade lubricating apparatus and method, the apparatus for the method includes (a) a pre-clean charging device including a first bias having a first polarity; (b) a cleaning device having (1) a cleaning mode including a second bias having a second polarity opposite the first polarity, and (ii) a non cleaning mode including a third bias having a third polarity; (c) a spots blade for removing random spots from a moving photoreceptor surface being cleaned; and (d) a programmable controller connected to the pre-clean charging device and to the cleaning device for forming a lubricating residual toner stripe on a portion of the moving photoreceptor surface, the programmable controller intermittently and momentarily switching the cleaning device from the cleaning mode to the non-cleaning mode for forming the lubricating residual toner stripe.

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patent: 2007/0140720 (2007-06-01), Lu et al.
patent: 5-313457 (1993-11-01), None
patent: 2002-311764 (2002-10-01), None

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