Apparatus for printing characters onto both surfaces of a sheet

Details Apparatus for printing characters onto both surfaces of a sheet Apparatus for printing characters onto both surfaces of a sheet

1994-08-26

1995-09-26

Yan, Ren

Typewriting machines

Including type-set-assemblage mounted on carrier and...

Plural type-heads mounted for selective individual...

400188, 400621, 83404, B41J 150

Patent

active

054529590

ABSTRACT:
An apparatus for printing letters, numerical characters and symbols in response to electronic data transmitted from a host machine onto both surfaces of a sheet of paper or film. Rollers move the sheet material along a path toward an outlet, a first printer prints on one of the surfaces of the sheet material within the path, and a second printer prints on the other surface of the sheet material within the path at a position nearer to the outlet than the first printer. A position detector detects the position of the sheet material within the path, and a controller concurrently and independently processes at least parts of the printing operations by the first and second printers based on the position detected by the position detector.

REFERENCES:
patent: 4313359 (1982-02-01), Smoravek
patent: 4375923 (1983-03-01), Hidaka et al.
patent: 4686540 (1987-08-01), Leslie
patent: 4781478 (1988-11-01), Eguchi
patent: 5138336 (1992-08-01), Goto
patent: 5188470 (1993-02-01), Matsubara et al.
patent: 5259678 (1993-11-01), Uchida
patent: 5268766 (1993-12-01), Nakadai et al.

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