Ink jet head substrate and ink jet head using same arranged staggeredly
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United States of America Patent
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-
Dec 9, 1997
Grant Date -
N/A
app pub date -
Apr 13, 1995
filing date -
Apr 14, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink jet head substrate including a base plate; an elongated through opening, for ink supply port, extending in a longitudinal direction of the base plate; a plurality of heat generating resisters arranged on the base plate along both sides of the opening; a pair of electrodes electrically connected to the heat generating resisters; electrode pads for external electric connection, the pad being arranged adjacent opposite ends of the base plate substantially in parallel with a line along which the heat generating resisters are arranged; wherein a length Ls of the base plate measured in a direction along the line, a length Lh of a range in which the heat generating resisters are arranged, and a length Lp of a range in which the pads are disposed, satisfy Lp.ltoreq.Ls-2.times.(Ls-Lh).
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