Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1991-03-28
1992-09-15
Hartary, Joseph W.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346140R, B41J 205, B41J 2175
Patent
active
051481855
ABSTRACT:
A thermal ink jet recording apparatus includes a plurality of heating elements which serve as pressure generating members spaced apart from a plurality of nozzles. A reservoir, which stores ink prior to ejection through the nozzles, is formed between a nozzle plate and the pressure generating members and has a first cross-sectional area. A gap formed between a pair of substrates upon which the pressure generating members are disposed has a second cross-sectional area. An additional reservoir for storing ink is in fluid communication with the gap and has a third cross-sectional area. The first cross-sectional area is smaller than the second cross-sectional area and the second cross-sectional area is smaller than the third cross-sectional area for promoting capillary action in ejecting droplets of ink through the plurality of nozzles.
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Abe Nobumasa
Handa Tsuneo
Momose Kiyoharu
Nakamura Yuichi
Nishikawa Mitsutaka
Hartary Joseph W.
Seiko Epson Corporation
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