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SIDESHOOTER WITH HIGH FREQUENCY RESPONSE

IP.com Disclosure Number: IPCOM000025966D
Original Publication Date: 1989-Jun-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal

Abstract

In Figures 1-3, a method is disclosed for increasing the drop generation frequency of a thermal ink jet printhead. In addition, this method provides for longer resistor transducer or heater lifetime. Figure 1 is a schematic cross sectional view of a portion of printhead 10, showing the ink channel in the channel plate 12, etched pit 13 in thick film layer 14 over the heater 15, and heater plate 16 containing on a surface 16a thereof a linear array of haters 15 and addressing electrodes (not shown). One end of the ink channel 18 is open and serves as a drop emitting nozzle 17. The other end of the channel is in communication with an ink reservoir (not shown). The ink channel is divided by projection 19 into a front channel 20 and back channel 22.