Photocopying – Contact printing – Light boxes
Patent
1993-12-27
1996-10-29
Grimley, Arthur T.
Photocopying
Contact printing
Light boxes
118654, 355253, 355255, 355256, G03G 1506
Patent
active
055701701
ABSTRACT:
Electrically conductive magnetic toner is supplied to an electrostatic printing apparatus by dispensing it pneumatically from one of two different toner bottles mounted on dispenser blocks. The toner passes through a chute into a container having an air previous, toner impervious, bottom. The toner particles are fluidized in the container, and come into contact with the rotating surface of an applicator roller having interior magnets, and the amount of toner which stays on the applicator roller surface is controlled in part by rotating the surface past a metering blade. To periodically declump the toner, a mechanical element is depressed which reverses the direction of the applicator roller, and brings a scraper blade into contact with the surface of the applicator roller, and applies a high level of vacuum to remove scraped off toner.
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Christy Orrin D.
Cyman T. F.
Hook Kevin J.
Matheis Mark A.
Muranyi Mark J.
Grimley Arthur T.
Lee Shuk Yin
Moore Business Forms Inc.
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