Plastic substrate for thermal ink jet printer

Platen arrangement for hot melt ink jet apparatus

Plotter pen ink level detector

Polychromatic acoustic ink printing

Pre-aimed nozzle for ink jet recorder and method of manufacture

Precisely aligned, mono- or multi-color, `roofshooter` type prin

Preheat roller for thermal ink-jet printer

Pressure damper of an ink jet printer

Pressure pulse drop ejector apparatus

Pressure-equalized ink transport system for acoustic ink printer

Priming apparatus for liquid ink writing instruments

Priming apparatus for liquid ink writing instruments

Print control system in a color image printer

Print head actuator for an ink jet printer

Print head for a dot matrix ink printer

Print head for an on-demand type ink-jet printer

Print head for ink-jet printing apparatus

Print head for printing or vector plotting with a multiplicity o

Print quality of dot printers

Print-on-demand type liquid jet printing head having main and su