B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
101/96.011, 101/
B41J 2/29 (2006.01) B41J 2/25 (2006.01)
Patent
CA 1122061
IMPROVEMENTS IN OR RELATING TO PRINTERS ABSTRACT A mechanism for a matrix printer has a robust single turn closed loop transformer secondary winding 3 as the moving part for driving a print stylus 9 into and out of a print position. Each secondary loop threads a trans- former core 1 on which is wound a multi-turn primary winding 2. A stack of such secondary loops, arranged with print styli 9 in a closely spaced print row across the stack are supported in a static magnetic field pro- duced by a magnetic assembly 10. Energization of a primary winding 2 induces a large current flow in its secondary loop 3 which reacts with the field to drive the associated print stylus 9 into the print position. In one embodiment, the stack of secondary loops are all mounted on a single pivot 6 and each swings about the pivot as a whole upon energization of its associated primary winding 2. In another embodiment each secon- dary loop of the stack is formed so as to be elastically deformable (Fig. 7) whereby a portion of the loop car- rying the stylus 9 is deflected into the print position upon energization of its associated primary winding. UK9-78-016
326207
International Business Machines Corporation
Kerr Alexander
LandOfFree
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