Method and apparatus for removing unexposed marking particles wi

Details Method and apparatus for removing unexposed marking particles wi Method and apparatus for removing unexposed marking particles wi

1990-12-24

1992-08-11

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118652, 118657, 355253, 355298, 355326, G03G 1509

Patent

active

051383888

ABSTRACT:
Method and apparatus for the production of a hard copy reproduction of image information. After imagewise exposure of one or more uniform depositions of marking particles in one or more respective image frames on a web, the image frames are cleaned by a novel magnetic brush cleaning apparatus which provides a differential cleaning action, whereby the unexposed marking particles are removed while the exposed marking particles are left in place. The resulting transferable images are then transferred from the image frames to a one or more receivers. After transfer, each receiver is transported to a fuser where the transferred image is fixed.

REFERENCES:
patent: 3410203 (1968-11-01), Fischbeck
patent: 3601484 (1971-08-01), Dybvig et al.
patent: 3780214 (1973-12-01), Bestenreiner et al.
patent: 3920329 (1975-11-01), Dennie et al.
patent: 3994725 (1976-11-01), Volkers
patent: 4148057 (1979-04-01), Jesse
patent: 4571071 (1986-02-01), Bothner

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