Ink ribbon cassette

Details Ink ribbon cassette Ink ribbon cassette

2005-12-07

2010-12-28

Colilla, Daniel J (Department: 2854)

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

C400S223000

Reexamination Certificate

active

07857532

ABSTRACT:
An ink ribbon cassette in which an ink ribbon used to form an image on a print medium is stored includes a cylindrical ribbon core around which the ink ribbon is wound, and a first magnet and a second magnet each configured to generate a magnetic force line in a space of the ribbon core. The ribbon core includes a cylindrical outer core and a cylindrical inner core inserted inside the cylindrical outer core. The inner core has an outside peripheral surface to which the first and second magnets are fixed, and an inner peripheral surface for forming the space where the magnetic force line is formed. The outer core has an outside peripheral surface around which the ink ribbon is wound, and an inner peripheral surface to which the outside peripheral surface with the first and second magnets fixed thereto is installed.

REFERENCES:
patent: 4629312 (1986-12-01), Pearce et al.
patent: 5397951 (1995-03-01), Uchida et al.
patent: 6595710 (2003-07-01), Hayashi
patent: 2004/0160220 (2004-08-01), Wendt
patent: 2005/0024045 (2005-02-01), Hagino et al.
patent: 2005/0095048 (2005-05-01), Neri
patent: 60142266 (1985-07-01), None
patent: 2003-231337 (2003-08-01), None
patent: 2003237199 (2003-08-01), None
patent: 2003237200 (2003-08-01), None

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