Driver circuit for use in an electrocoagulation printing apparatus
AssigneeElcorsy Technology Inc.
InventorsAdrien Castegnier, Guy Castegnier, Pierre Castegnier, Charles Goyette
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Abstract
An electrocoagulation printing apparatus has a printing head with an array of electrodes in contact with an electrically conductive electrocoagulation printing ink, and a driver circuit for impressing electric signals to individual electrodes of the array. The driver circuit includes a current limiter for limiting the magnitude of electric current passing through individual electrodes and the electrocoagulation printing ink to a predetermined value. The current limiter corrects a density of adjacent ink film pixels of a printed line to compensate for a cross-influence of impedance between adjacent ink film pixels.
Claims6
An electrocoagulation printing apparatus having:
- a printing head with an array of electrodes in contact with an electrically conductive electrocoagulation printing ink;
- a driver circuit for impressing electric signals to individual electrodes of said array;
- and
- a current limiter included in said driver circuit for limiting the magnitude of electric current passing through individual electrodes and said electrocoagulation printing ink to a predetermined value,
- wherein said current limiter corrects a density of adjacent ink film pixels of a printed line to compensate for a cross-influence of impedance between adjacent ink film pixels.
Dependencies are inferred from the claim text.