Printing apparatus

Details Printing apparatus Printing apparatus

G - Physics

01

D

101/43

G01D 9/42 (2006.01)

Patent

CA 1193904

ABSTRACT OF THE DISCLOSURE A low-cost printer is provided for use with data processing equipment. A light-shielding retainer provides a substantially continuous sheet supply of printing medium which is light sensitive and heat developed. The printing medium has strips of a conductive-resistive material on one side. The medium is moved past a processing station. A first portion of the station includes an array of light emitting elements and a second portion in- cludes electrical contacts which engage the strips and apply current through them thereby heating the medium sufficient for developing the medium thus visibly exposing and fixing the characters on the medium. The use of discrete strips interrupts the spread of heat and limits the zone of heating of the medium to a region adjacent the printer. This permits light exposure and heat curing to occur at approximately the same location. Thus, any errors will be more readily noticed.

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