Lettering apparatus

摘要

A lettering apparatus adapted for receiving a replaceable tape supply cartridge comprising a pair of spaced apart, parallel frame members defining a cartridge receiving cavity and a print bar pivotally supported between the frame members. The apparatus also includes an improved linkage for generating the lettering force, an improved tape cut-off mechanism and improved means for driving the tape advancement mechanism in the cartridge. The cartridge also includes a device for sensing the amount of tape remaining and means for aligning the tape and characters to be lettered.