Ink jet head, ink jet cartridge using said head and ink jet recording apparatus using said cartridge
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United States of America Patent
Stats
-
Jun 1, 1993
Grant Date -
N/A
app pub date -
Feb 2, 1990
filing date -
Feb 3, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet recording head includes a substrate and a ceiling plate constituting discharge ports for discharging ink and ink passages which become pathways for the ink discharged from the discharge ports, said substrate having a heat energy generating member for generating heat energy to be utilized for discharging of ink; and an ink storage portion which stores ink discharged from said discharge ports, and also is equipped with said substrate at a part thereof, said ink storage portion and said substrate being insert molded to be constituted integrally.
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