Non-impact dot print head with reset

Details Non-impact dot print head with reset Non-impact dot print head with reset

1989-07-26

1990-07-10

Evans, Arthur G.

Recorders

Electric recording

Electrochemical

364519, G01D 1500

Patent

active

049410016

ABSTRACT:
A dot printer includes a print head with a plurality of recording elements, a power supply for driving the recording elements, a source of logic supply voltage, a source of data signals, and means for supplying a first reset signal to the print head to place the recording elements in a safe state in the absence of data signals. To provide for the protection of the recording elements in the event of a power drop even if no reset signal is received from the printer, a second reset signal source is provided on the print head to place the recording elements in a safe state in the absence of data signals if the logic supply voltage goes below a predetermined value.

REFERENCES:
patent: 4279523 (1981-07-01), Ringle
patent: 4750101 (1988-06-01), Ayers

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