Pen type printing apparatus

Details Pen type printing apparatus Pen type printing apparatus

1982-01-20

1984-03-27

Griffin, Donald A.

Recorders

Record receivers and/or driving means therefor

Web

G01D 1524

Patent

active

044397780

ABSTRACT:
Disclosed is a pen type printing apparatus having a reduced size and weight suitable for use in combination with a personal computer or the like. The apparatus has a paper feed roller adapted to be driven by a motor. Two short roller shafts are arranged at each axial end of the paper feed roller so as to extend in parallel with the latter. These roller shafts rotatably carry respective pressing rollers of small diameters. The roller shafts are biased toward the paper feed roller to bring the pressing rollers into pressure contact with both axial end portions of the paper feed roller to clamp a printing paper therebetween. A carriage is movable transversely of the printing paper and carries a pen which is projectable selectively. Any desired character, symbol or a chart can be printed on the substantially mid-portion of the printing paper where no pressing roller exists, by a combination of the shifting of the carriage, feed of the paper and the projection of the pen, in accordance with a printing instruction.

REFERENCES:
patent: 2884299 (1959-04-01), Sandrock
patent: 3285484 (1966-11-01), Johnson
patent: 3519117 (1970-07-01), Smith
patent: 4369453 (1983-01-01), Brandt

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