Typewriter, printer or the like and ribbon cassette therefor

Details Typewriter, printer or the like and ribbon cassette therefor Typewriter, printer or the like and ribbon cassette therefor

1989-06-09

1990-08-14

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400247, 400223, 101336, B41J 3528

Patent

active

049482769

ABSTRACT:
In an electronically controlled typewriter, a printer or the like with an exchangeable ribbon cassette, which is provided with identifying codings and where the ribbon cassette is pivotable between a lowered position of rest and an elevated printing or operating position around the cassette base facing away from the printing area, it is provided in order to attain a simple and dependably readable coding which can discriminate between a plurality of different types of ribbon cassettes, that at a defined radial distance from the base of the ribbon cassette, which is to be inserted, a sensor is disposed at the side of the pivot path of the same, which gives off an electrical output signal in reference to a changing magnetic field. It is provided in a ribbon cassette for such a typewriter or such a printer to dispose at least one bistable magnetic element on a lateral surface of the ribbon cassette.

REFERENCES:
patent: 4416161 (1983-11-01), Barkholidarian
patent: 4425046 (1984-01-01), Van Horne et al.
patent: 4503391 (1985-03-01), Hinke
patent: 4591788 (1986-05-01), Mohri et al.
patent: 4624588 (1986-11-01), Bivin
patent: 4639670 (1987-01-01), Normann
patent: 4655624 (1987-04-01), Kondo et al.
patent: 4779075 (1988-10-01), Zagelein et al.
patent: 4797016 (1989-01-01), Lahr
patent: 4797018 (1989-01-01), Hoffmann et al.

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