Control system for enhancing gray tones of a digitally operated

Details Control system for enhancing gray tones of a digitally operated Control system for enhancing gray tones of a digitally operated

1988-02-19

1990-09-25

Harkcom, Gary V.

Boots, shoes, and leggings

355239, G09G 114

Patent

active

049597914

ABSTRACT:
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.

REFERENCES:
patent: 4580134 (1986-04-01), Campbell et al.
patent: 4591969 (1986-05-01), Bloom et al.
patent: 4646078 (1987-02-01), Knierim et al.
patent: 4694405 (1987-09-01), Bradbury et al.
patent: 4745560 (1988-05-01), Decker et al.
patent: 4780768 (1988-10-01), Tomohisa et al.

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