B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
354/236.11
B41J 3/30 (2006.01) B41J 2/505 (2006.01)
Patent
CA 1086232
ABSTRACT Apparatus for use in a dot-matrix type impact printer for printing each line of characters and/or graphic data in a selective one of a plurality of character fonts and/or formats. In one preferred embodiment, a manual selection is made corresponding to either a normal or compressed spacing between adjacent dot columns by selection of a registration array from a group of such arrays. Dual-channel sensors each cooperate with one of the registration arrays for determining the position of a print head as it moves across a print line and for enabling a plurality of print wires to be selectively impacted against the paper document whenever the print head is in proper registration as determined by the selected array. Spacing between registra- tion slits of each array is uniform but is different as between arrays. The selected array may be changed either manually or remotely. Upon completion of the printing of a line, control logic circuitry returns the printer to a "selected" format. Double-width characters may be printed utilizing any of the arrays. In an alternative embodiment, a horizontal format may be utilized to permit printing in only selected regions or columns.
264116
Centronics Data Computer Corporation
Meredith & Finlayson
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