B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
197/86, 101/96.1
B41J 11/20 (2006.01) B41J 2/51 (2006.01) B41J 25/308 (2006.01)
Patent
CA 1296948
PRINT HEAD GAP ADJUSTMENT MECHANISM Abstract A printing gap adjustment mechanism compensates for the change in the printing gap variation caused by the relative motion between two side walls of the printer frame supporting a platen and two guide rods slidably supporting a print head. The mechanism includes a compensator rod and a pair of eccentric members rotatably mounted in a compensator plate which is pivotally mounted on one side wall of the printer frame. One end of the compensator rod is frictionally secured to the opposite side wall while the other end is rotatably supported in an opening in the other side wall and is secured to an eccentric mounted to the compensator plate. One of the guide rods supporting the print head is located near the platen and is secured between two eccentric members, one of which is rotatably mounted in the compensator plate and the other is rotatably mounted in the opposite side wall. The other guide rod is secured between the two side walls. When the printing gap becomes distorted due to relative motion between the two side walls, the mechanism senses the distortion and moves the compensator plate which in turn moves the eccentric member to which one end of the guide rod is secured a predetermined distance to restore the desired printing gap.
566652
Geis David George
Rothlisberger Kurt
Kirby Eades Gale Baker
Ncr Corporation
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