Ink jet head, ink jet cartridge incorporating ink jet, and ink jet apparatus incorporating cartridge
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United States of America Patent
Stats
-
Apr 11, 2000
Issued Date -
N/A
app pub date -
Apr 15, 1997
filing date -
Oct 16, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet head includes a plurality of ejection orifices for ejecting ink; a common liquid chamber for storing temporarily the ink to be supplied to each of the ejection orifices; a plurality of ink passages, being separated by liquid passage walls, and each of which connects one of the ejection orifices to the common liquid chamber; and a plurality of energy generating elements provided one for one in each of the ink passages for generating energy to eject the ink from each of the ejection orifices; wherein the ejection orifices are grouped into a plurality of control blocks comprising a predetermined number of the ejection orifices in sequence so that the energy generating elements are driven by the block; and wherein walls are provided in the common liquid chamber, at the dividing lines between the control blocks, for impeding the ink movement in the liquid chamber, between the adjacent blocks.
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