Patent ID: 6676312
Filing Date: 2004-01-13
Classification: B41J

Abstract:
A method for identifying the ribbon type in a media device, said method comprising the steps of:(a) providing a ribbon core with at least one color coded ribbon identification band, said at least one color coded ribbon identification band including a sequence of zones of predetermined colors, each zone including only one said color and said sequence of zones collectively representing the type of ribbon being used in the media device, and said predetermined color being distinguishable from other predetermined colors by its respective wavelengths of reflected light independent of any variations in intensity, said ribbon core being adapted to revolve in the media device; (b) illuminating said plurality of zones of said at least one color coded ribbon type identification band over at least one revolution of said ribbon core; and (c) sequentially sensing the wavelengths of light being reflected back from each of said illuminated zones for the purpose of identifying the ribbon type being used in the media device.