Apparatus and method for driving a magnetic print head

Details Apparatus and method for driving a magnetic print head Apparatus and method for driving a magnetic print head

1978-12-04

1981-03-17

Curtis, Marshall M.

Recorders

Magnetographic

Magnetographic head

3461531, G06F 314, G03G 1900

Patent

active

042570514

ABSTRACT:
Coincident current windings on a magnetic print head are driven in a special sequence to minimize undesired spurious printing effects otherwise caused by undesirable concentrations of magnetic flux. Rather than energizing all digit windings (in accordance with supplied data values) for each successive energization of a word winding, the digit windings are driven in multiple sub-sets or groups. Only one such sub-set is energized at any given time and the members of each sub-set are chosen to minimize undesired spurious magnetic flux distributions for any given magnetic printing head configuration.

REFERENCES:
patent: 3717460 (1973-02-01), Duck et al.
patent: 3986190 (1976-10-01), Schwabe et al.
patent: 4135195 (1979-01-01), Schloemann
patent: 4157553 (1979-06-01), Diddens

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