B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
197/76
B41J 5/00 (2006.01) B41J 1/24 (2006.01)
Patent
CA 1128446
APPARTUS FOR SYNCHRONIZING CARRIER SPEED AND PRINT CHARACTER SELECTION IN ON-THE-FLY PRINTING Abstract of the Disclosure A rotatable print disk is mounted on a carrier which traverses along a print line. The disk is rotated from each selected character position to the next selected character position by the shortest distance at a constant velocity; thus, the time for the disk to move from a given selected character position to the next will be variable dependent on this distance. The carrier is moved from one print position to the next at variable speeds selected such that the carrier reaches the next print position in synchronization with the disk reaching the next selected character position. Upon such synchronization, a print hammer is fired to print the character while the carrier continues on-the-fly towards the next print position. The apparatus includes means responsive to the time required for the print disk to rotate from one selected character position to the next for controlling the carrier escape- ment velocity to increase and/or decrease such that escapement occurs coincident with character selection without escapement velocity becoming zero. AT9-78-031
349752
Evans Charles W.
Hayes Richard L.
Kane Milburn H.
International Business Machines Corporation
Kerr Alexander
LandOfFree
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