Multi-function mechanical printer drive means
Multiple coil hammer actuator system
Multiple document printing system
Multiple head marking device
Multiplexed hammer dot band matrix printer
Needle-carrying head for a printing machine
Needle-carrying head for a printing machine
Oscillatory band and hammer dot matrix printer
Paper feed control for a dot-line printer
Parallel line printer
Parallel printer
Parallel-wheel printers
Partial line turnaround for printers
Phase lock font position and impact hammer timing control
Piggyback recorder for adding second recorder to a printer termi
Pivoting time recorder
Planetary transmission system for selective type wheels
Position monitoring methods and apparatus
Postage meter
Postage meter having an automatic slogan sub-module