Recorders – Combined with other non-recording devices
Patent
1992-09-21
1995-01-17
Fuller, Benjamin R.
Recorders
Combined with other non-recording devices
347102, B41J 201, G01D 1516
Patent
active
053829638
ABSTRACT:
A thermal ink jet printer for printing MICR images by liquid ink droplets. The ink contains a magnetic pigment, magnetic particles, or a combination of both. An external magnetic field in the printing zone orients the magnetic pigment in a preferred direction while the printed ink droplet is still wet, so that the magnetic pigment is mobile in a liquid medium. The printed droplet is allowed to dry under the influence of the magnetic field, thereby permanently preserving the specific orientation. As a result, the remanence of the magnetic material in the images are increased and less magnetic pigment is needed for the necessary signal for MICR. This reduction in magnetic material enables the printing by a thermal ink jet printer, because nozzle clogging is avoidable.
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Pond Stephen F.
Rezanka Ivan
Chittum Robert A.
Fuller Benjamin R.
Lund Valerie Ann
Xerox Corporation
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