B - Operations – Transporting – 43 – K
Patent
B - Operations, Transporting
43
K
197/106, 242/61
B43K 5/14 (2006.01) B41J 32/00 (2006.01) B41J 33/26 (2006.01) B41J 35/28 (2006.01)
Patent
CA 2020556
ABSTRACT OF THE DISCLOSURE A refillable ink ribbon cartridge including an adapter ele- ment which can be permanently inserted in a typewriter and receive a replaceable ink ribbon cassette. The adapter in- cludes a ribbon drive mechanism for advancing the ink ribbon. The adapter includes a body portion and two extend- ing legs and centering pins at the free ends and a ribbon tensioning lever. The cassette is formed with a body portion and two protruding legs with guiding elements to guide the ribbon across the free ends of the legs. A drive wheel is rotatably mounted on a spring loaded arm to pull the ribbon through the cartridge, the arm is rotatable about a drive pin. Upon insertion of the refill cassette into the adapter, the two systems align and interact so that the ribbon is guided by the associated protruding legs and guiding ele- ments to run smoothly through the cartridge. When the rib- bon supply has been depleted, the adapter remains in the typewriter, but the depleted refill unit is removed and a new cassette is replaced into the housing quickly and easily.
Burgin Markus
Fetherstonhaugh & Co.
Franz Buttner Ag.
LandOfFree
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