Drum printer control

Details Drum printer control Drum printer control

1973-12-28

1976-04-06

Ruggiero, Joseph F.

Communications: electrical

Digital comparator systems

101 9318, G06F 312

Patent

active

039493679

ABSTRACT:
Control of a drum printer by signals from an LSI/MOS calculator chip. Drum generated signals and control signals generated on a second LSI/MOS chip operating in synchronism with the calculator chip selectively provide for actuation of a line of print hammers.
Further, two channels coupling the calculator chip to the control chip provide for flow of coded character words and function words for printing of both functions and characters on a given line.
Further, control of the printer is accomplished by observing which digit time in the calculator chip a specific dedicated flag is set.

REFERENCES:
patent: 3240920 (1966-03-01), Barbagallo et al.
patent: 3366045 (1968-01-01), Canarutto
patent: 3377622 (1968-04-01), Burch, Jr. et al.
patent: 3656427 (1972-04-01), Foley
patent: 3728688 (1973-04-01), Elmhurst et al.
patent: 3845710 (1974-11-01), Brodrueck

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