Teleprinter having single belt carriage and ribbon drive system

A teleprinter for printing data on a print-receiving surface, comprising, in combination:

• a housing;
• a print head;
• means including a carriage for supporting said print head in generally perpendicular alignment to said print-receiving surface, said carriage being constrained to slide along a predetermined operating path parallel-spaced from said print-receiving surface;
• carriage drive means comprising first and second pulleys arranged at either end of said carriage operating path in a common plane generally parallel to said operating path;
• a flexible carriage drive belt passing over said pulleys and forming therebetween a first span and a second span, said belt being fixedly engaged to said carriage along said first span thereof;
• means for rotatably driving at least one of said pulleys whereby said carriage is moved along said operating path with movement of said carriage drive belt over said pulleys;
• means including an ink ribbon carried on said carriage and positioned between said print head and said print-receiving surface for producing in cooperation with said print head a visible image on said print-receiving surface, said ribbon requiring periodic advancement upon operation of said print head to avoid depletion of the ink contained thereon;
• and
• ribbon drive means carried on said carriage comprising a ribbon drive wheel operatively engaged to said ink ribbon for advancing said ink ribbon upon rotation thereof, and a third pulley operatively engaging said second span of said carriage drive belt intermediate said first and second pulleys and rotatably coupled to said ribbon drive wheel for advancing said ink ribbon during movement of said carriage along said operating path.