Printer with low voltage vapor bubble generating heaters

Details Printer with low voltage vapor bubble generating heaters Printer with low voltage vapor bubble generating heaters

2007-08-16

2009-06-09

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S062000

Reexamination Certificate

active

07543916

ABSTRACT:
An inkjet printer that has a printhead with a plurality of nozzles and one or more heater elements10corresponding to each nozzle, configured to operate at low voltage and low current. Each heater element10vaporises a printing fluid11to form a bubble12therein. The generation of the bubble12causes the ejection of a drop of the printing fluid (such as ink) through the corresponding nozzle5to effect printing. Each heater element10requires less than 8 volts and a current of less than 60 milliamps for less than 1.5 microseconds, in order to form the gas bubble12that causes the ejection of the drop of printing fluid11. These lower voltages are more suited to CMOS circuitry components and helps to avoid problems such as ‘ground bounce’.

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