Printing mechanism for printing bar codes on pressure-...

Details Printing mechanism for printing bar codes on pressure-... Printing mechanism for printing bar codes on pressure-...

B - Operations, Transporting

65

C

101/28

B65C 11/02 (2006.01) B41K 3/08 (2006.01)

Patent

CA 1172901

ABSTRACT OF THE DISCLOSURE The present invention relates to a printing mechanism for printing bar codes on pressure-sensitive labels adhering to a carrier tape. The printing mechanism includes a print wheel on which a plurality of type rings rotatable about a common axis relatively to each other are mounted. The carrier tape with the pressure- sensitive labels adhering thereto is pressed with the aid of a pressure roller against the print wheel. To enable the bar codes to be printed to be read without error with electrooptical reading devices, high require- ments are made of the printing quality of the bar codes as regards uniformity and contrast. To meet these requirements the type rings comprise a cylindrical peripheral surface on which bar code types of resilient material are formed with which an inking means is in contact; the pressure roller is rotatable about an axis extending parallel to the axis of the type rings and consists of non-resilient material.

383474

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