Photocopying – Contact printing – Light boxes
Patent
1989-10-24
1991-03-26
Grimley, A. T.
Photocopying
Contact printing
Light boxes
101366, G03G 1510
Patent
active
050033522
ABSTRACT:
An automated system and method are provided to supply a liquid toner dispersion to the printing station of a high speed electrophotographic printing press. A highly concentrated form of the liquid toner dispersion is supplied in a first container. Density measurement of the liquid toner in a process tank controls the feed of concentrate to the process tank. Liquid level switches in the process tank control toner carrier liquid flow to the process tank. Conductivity sensor monitoring of the toner in the process tank controls the flow of liquid charge control agent into the process tank. Flow rate of the liquid toner from the process tank to the printing station of the printing unit is controlled by a sensor, logic circuitry, and motorized adjustable flow valve and flow meter.
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Duchesne Mark F.
Gibson George A.
Miller Curtis B.
Punater Dinesh G.
Sadwick Paul V.
AM International Inc.
Grimley A. T.
Royer William J.
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