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US 6,224,276 B1Granted
Ink ribbon cartridge including ink ribbon damaging means and rotation direction restricting means
AssigneeSony Corporation
InventorsHidehiko Funayama, Takatoshi Iwanabe
Life of this patent
Estimating the term…
Abstract
The reuse of an ink ribbon is prevented and the image quality and the proper paper feeding operation are secured by providing an ink ribbon damaging means to a ink ribbon cartridge of a color video printer. For example, a ring cutter is provided to the spool shaft of a spool on which an ink ribbon used for printing is wound so that the ink ribbon wound on the spool is cut.
Claims8
An ink ribbon cartridge having an ink ribbon feeding mechanism comprising a supply spool, an ink ribbon wound on a winding spool, and an ink ribbon holder for supporting said ink ribbon, comprising:
- ink ribbon damaging means;
- and
- rotation direction restricting means for allowing the rotation in proper direction for printing and for preventing the rotation in the direction reverse to the proper direction of at least one of said supply spool and said winding spool.
Dependencies are inferred from the claim text.