Technique for automatic centering of carriage in a printing appa

Details Technique for automatic centering of carriage in a printing appa Technique for automatic centering of carriage in a printing appa

1986-09-05

1988-11-01

Sewell, Paul T.

Typewriting machines

Control of print position along print-line by signal...

400322, 400708, B41J 1930

Patent

active

047814780

ABSTRACT:
A printing apparatus includes a platen, a carriage, a guide member, and a carriage drive. A printing head is mounted on the carriage. The carriage can move in the axial direction of the platen, so that the printing head can print data on a sheet of paper set on the platen. The guide member guides the sheet of paper inserted in the gap between the platen and the guide member, into the gap between the platen and the printing head. The carriage driver moves the carriage to a predetermined position within a region opposing the central portion of the platen when no sheet of paper is detected to be set on the platen.

REFERENCES:
patent: 1988189 (1935-11-01), Dobson
patent: 2366206 (1945-01-01), Metzner
patent: 3968868 (1976-07-01), Greek
patent: 4189135 (1980-02-01), Gosta
patent: 4279523 (1981-07-01), Ringle
patent: 4326815 (1982-04-01), Kapp
patent: 4469460 (1984-09-01), Hughes
patent: 4489931 (1984-12-01), Costa

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