Transverse magnetic printing head

A transverse magnetic printing head for impressing latent magnetic images on a magnetizable medium moving relative to said head, said head comprising:

• a plurality of nonintersecting, conductive word lines disposed on a first, insulating substrate, said word lines crossing a first elongated gap in said first substrate, said word lines being insulated along those portions crossing said gap;
• a plurality of nonintersecting, conductive digit lines disposed on a second, insulating substrate, said digit lines crossing a second elongated gap in said second substrate, said digit lines being insulated along those portions crossing said gap, said first and second elongated gaps being adjacently aligned and having substantially the same dimensions, each of said digit lines being substantially parallel to and opposite a word line where said lines cross said gaps;
• a plurality of nonintersecting, sacrificial conductive lines disposed on a third, insulating substrate, said sacrificial lines crossing a third elongated gap in said third substrate, said second and third elongated gaps being adjacently aligned and having substantially the same dimensions, each of said sacrificial lines being substantially parallel to and opposite a digit line where said lines cross said gaps;
• and
• magnetically permeable material electrodeposited between adjacent word, digit, and sacrificial lines so as to form magnetic pole pieces along said elongated gap, so that adjacent magnetic pole pieces may be selectively energized by coincident current electrical signals present on said digit and word lines.