Method and apparatus for high speed thermal printing

Details Method and apparatus for high speed thermal printing Method and apparatus for high speed thermal printing

B - Operations, Transporting

41

J

101/43

B41J 2/325 (2006.01)

Patent

CA 1201012

METHOD AND APPARATUS FOR HIGH SPEED THERMAL PRINTING Abstract of the Disclosure A method and apparatus for thermally printing on plain paper high resolution fonts such as the ABA's E13B font. In one embodiment, the thermal print head is held stationary while the record medium (like a bank check) and ribbon (containing heat-transferrable ink) are moved, and in a second embodiment, the record medium and the ribbon are held stationary while the printing head is moved. The print head is comprised of printing units with each printing unit having a printing face having resistive heating elements therein. The heating elements are arranged in rows and columns in the asso- ciated face to produce a printed dot density of 6.05 N dots per millimeter, wherein N is equal to 1, 2, or 3. Loading of the next pattern of data to be printed is effected while the prior pattern is being "burned" or printed. An R-C circuit is included in the energizing circuit to minimize overheating of the heating elements during repeated energization thereof. Characters or bar codes may be printed by the apparatus.

418083

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