Control system for enhancing gray tones of a digitally operated printer

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United States of America Patent

PATENT NO 4959791
SERIAL NO

07157961

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A digitally operated printer, particularly a laser printer, has a control system which controls supply of operational signals to the printer from a signal source. The control system incorporates a converter which converts groups of input signals into larger groups of operational signals. The operational signals are generated in correspondence with coded information carried by the input signals, e.g. by reference to a store of predetermined operational signals. The larger groups of signals are fed at a faster rate than the input signals, so that the effect is to enhance the grey tones produced by the printer.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSAL TUBULAR SYSTEMS INC525 BEER ROAD MANSFIELD OH 44906

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Prees, Michael R Rampton, GB2 1 2
Salisbury, Richard S Saffron Walden, GB2 5 3

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