Method and apparatus for removing edge raggedness from images

Electrophotography – Image formation – Treatment of developed image prior to transfer

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G03G 1516

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active

057428867

ABSTRACT:
Developed image noise is reduced by momentarily breaking the close range forces holding toner non-uniformly to a charge retentive surface in an electrostatic image. The source of the image noise can be of a mechanical nature, such as, raking by carrier beads in conventional two component development. The short range forces are broken by applying ultrasonic vibration to the charge retentive surface.

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patent: 5258820 (1993-11-01), Tabb
patent: 5351113 (1994-09-01), Pietrowski et al.
patent: 5539506 (1996-07-01), Bean et al.
patent: 5574541 (1996-11-01), Folkins

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