Printing device

A printing device having at least one printing station for printing on labels in the form of a striplike record medium comprising:

• first and second coaxially mounted rotatable typewheels of substantially the same diameter;
• a rotatable pressure roller associated with each typewheel and arranged in spaced relation to its associated typewheel;
• actuating means for bringing said typewheels and said pressure rollers into engagement for printing upon a label disposed therebetween while advancing said label through said printing station;
• said label being advanced through a distance which is a function of the period of time said typewheels and said pressure rollers are engaged;
• said actuating means removing said typewheels and said presure rollers from engagement after completion of a label-printing and label-advancing operation;
• and
• motorized drive means coupled to said typewheels and said pressure rollers and being adapted to continuously rotate said typewheels and said pressure rollers at substantially the same peripheral speed;
• said first typewheel being provided around the periphery thereof with a plurality of alphanumeric type characters;
• said second typewheel being provided around the periphery thereof with a plurality of type characters in coded form corresponding to at least certain ones of said alphanumeric characters;
• one of said typewheels being provided at the periphery thereof with at least one projection located on said typewheel at a position at which said typewheel is not provided with type characters;
• said at least one projection being adapted to contact a label disposed between said typewheel and said pressure rollers;
• whereby,
• during rotation of said typewheel and said presure rollers, said at least one projection advances said label through a distance which is a function of the period of time said typewheels and said pressure rollers are engaged.