Abstract: A tape supply cartridge for supplying tape and ribbon to a lettering apparatus having a mechanism for creating a lettering force and a mechanism for positioning a character to be lettered into lettering position. The cartridge includes an improved device for advancing and assuring alignment of the tape and an improved mechanism for interfacing and aligning the cartridge with respect to the lettering machine.

Abstract: 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.

Abstract: A tape supply cartridge for supplying tape and ribbon to a lettering apparatus having a mechanism for creating a lettering force and a mechanism for positioning a character to be lettered into lettering position. The cartridge includes an improved device for advancing and assuring alignment of the tape. The cartridge also includes a mechanism for preventing the ribbon supply spool from free wheeling and improved structure for interfacing with the lettering machine to advance the tape.