Ink jet printing apparatus

An ink jet printing apparatus is provided comprising a print cartridge including a heater chip and a nozzle plate coupled to the heater chip. The heater chip has first, second, third and fourth heating elements, and the nozzle plate has a plurality of primary (110) and secondary (120) nozzles. The p...

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Bibliographische Detailangaben
1. Verfasser:	ANDERSON, FRANK EDWARD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	An ink jet printing apparatus is provided comprising a print cartridge including a heater chip and a nozzle plate coupled to the heater chip. The heater chip has first, second, third and fourth heating elements, and the nozzle plate has a plurality of primary (110) and secondary (120) nozzles. The primary nozzles include first and second nozzles positioned in first (212) and second (214) nozzle plate columns and the secondary nozzles include third and fourth nozzles positioned in third (222) and fourth (224) nozzle plate columns. Each of the nozzles has one of the heating elements associated therewith for generating energy to discharge ink therefrom. The apparatus further includes a driver circuit, electrically coupled to the print cartridge, for applying firing pulses to the heating elements. The printing apparatus is selectively operable in one of a normal mode of operation and a high speed mode of operation.