Ink jet recording head, an ink jet unit and an ink jet apparatus using said recording head
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 5, 2000
Grant Date -
N/A
app pub date -
Nov 23, 1994
filing date -
Nov 26, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink jet head for performing recording by discharging inks comprises an element substrate provided with a plurality of discharge energy generating elements for discharging the inks and a grooved member integrally having discharge ports, a plurality of grooves constituting ink flow passages provided corresponding to the discharge energy generating elements, a plurality of recess portions constituting a plurality of liquid chambers for supplying the inks to a plurality of ink flow passages, and separation grooves provided between the plurality of recess portions to separate between the recess portions constituting the liquid chambers. The element substrate and the groove member being jointed together. The liquid chambers are separated by the separation grooves for preventing the inks from flowing between the liquid chambers.
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