Printer with a mechanism for idling setting wheels

A printer comprising:

• a display window;
• a plurality of setting wheels rotatably disposed adjacent to said display window, each of said plurality of setting wheels having teeth formed at equal intervals on respective outer circumferential surfaces thereof;
• a printing type receiver opposingly arranged in spaced relation to said setting wheels;
• a plurality of endless printing type belts, each printing type belt being stretched around one of said plurality of setting wheels and said printing type receiver, each of said plurality of endless printing type belts including:
• a first convexity and a second convexity protruding from separate locations on an outer circumferential surface of said endless printing type belt, said first and second convexities dividing said outer circumferential surface of said endless printing type belt into first and second regions;
• a plurality of printing types disposed on an outer circumferential surface in said first region;
• a plurality of indicating types disposed on an outer circumferential surface in said second region;
• and
• a plurality of recesses, disposed on an inner circumferential surface in said second region, for respectively engaging the teeth of each of said setting wheels, each of said endless printing type belts being rotatable in accordance with a rotation of a corresponding setting wheel;
• a setting shaft for selectively engaging at least one of said plurality of setting wheels;
• a knob coupled with said setting shaft for maneuvering said setting shaft;
• and
• stop means, engageable with said convexities, for preventing said printing type belts from rotating when one of said two convexities meets said stop means in accordance with a rotation of each of said endless printing type belts;
• wherein said plurality of recesses disposed in said second region, includes at least one recess located adjacent to a respective longitudinal end of said second region, said at least one recess having a wall formed as a slanted surface rising gradually in a longitudinally inward direction relative to said second region to allow the teeth of one of said setting wheels to slide thereon, thereby causing said one setting wheel to rotate idly in response to a rotating force applied thereto in one direction.