Liquid ejection head
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United States of America Patent
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Apr 5, 2005
Grant Date -
Jun 24, 2004
app pub date -
Aug 26, 2003
filing date -
Aug 26, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid ejection unit is constituted by including a flow path unit comprising a nozzle plate, a flow path forming plate and a sealing plate, the unit is attached to a head holder, at least two of first liquid ejection units are aligned in a direction of nozzle arrays, a second liquid ejection unit having a shorter length in the first direction than the first liquid ejection unit is arranged at a discontinuous portion of the nozzle arrays between the first liquid ejection units by being shifted from an alignment of the first ejection liquid units in a second direction and a single unit is formed by the liquid ejection units such that the nozzle arrays constitute a long nozzle group for ejecting the same kind of a liquid.
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