Apparatus for adjusting the print head gap in a dot matrix print

Details Apparatus for adjusting the print head gap in a dot matrix print Apparatus for adjusting the print head gap in a dot matrix print

1985-12-09

1987-10-27

Burr, Edgar S.

Typewriting machines

Including adjustment for optimum printing plane

Responsive to thickness of record-medium

400 59, 4006363, 400642, 400662, B41J 1120

Patent

active

047026294

ABSTRACT:
A dot matrix printer utilizes an inking roller for supplying ink to the surface of the printer platen and has guide means adjacent the platen to separate the print paper from the platen. The guide means includes an elongated slot or window for access to the platen by the print wires. The print wire support means is spring loaded in a direction toward the platen and utilizes a solenoid to move the support means away from the platen. A pair of rollers is engageable with the paper and positioned between the platen and the print element carriage to form a predetermined space between the paper and the end of the print wire when the carriage is moved toward the platen.

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T. E. Schall; "Platen Inking Back Printer"; IBM Tech. Disc. Bull.; vol. 21, No. 9, pp. 3729-3730; Feb. 1979.

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