Method and apparatus for adaptive cleaner blade lubrication

Details Method and apparatus for adaptive cleaner blade lubrication Method and apparatus for adaptive cleaner blade lubrication

1993-12-06

1995-10-31

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355296, G03G 2100

Patent

active

054634555

ABSTRACT:
An adaptive cleaner blade lubricating system for electrophotographic printing machines. In an electrophotographic printing machine, the amount of residual toner available to lubricate a cleaner blade is calculated based on the density of the transferred image. A band of toner is deposited in an inner document gap in selective widths so as to provide an adequate amount of toner to lubricate the cleaner blade across the full width of the photoreceptor. The lubricating band may be variable or may be a constant width with the frequency of placement of the band determined based on average image density for a group of documents. In the preferred embodiment, the width of the toner band is varied as a function of the overall residual toner in each pixel location across the width of the photoreceptor based on the density of the images transferred. As a result of the varying lubrication bands, the cleaner blade is maintained so as to not tuck and cause streaking and/or damage while toner efficiency is maximized.

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patent: 5204698 (1993-04-01), LeSueur et al.
patent: 5204699 (1993-04-01), Birnbaum et al.
patent: 5264904 (1993-11-01), Audi et al.

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