Liquid-jet head unit and liquid-jet apparatus
First Claim
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1. A liquid-jet head unit, comprising:
- an liquid-jet head in which nozzle orifices for ejecting ink droplets are arranged in parallel lines to each other; and
a head case fixed to the liquid-jet head, wherein a linear expansion coefficient of the head case in a reference direction, which is a direction in which the nozzle orifices of the head case are arranged in parallel lines, is set less than a linear expansion coefficient thereof in a direction orthogonal to the reference direction.
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Abstract
Disclosed are a liquid-jet apparatus, and the liquid-jet head unit including: a liquid-jet head in which nozzle orifices for ejecting ink droplets are arranged in parallel lines; and a head case fixed to the liquid-jet head. A linear expansion coefficient in a reference direction, which is a direction in which the nozzle orifices of the head case are arranged in parallel lines, is set less than a linear expansion coefficient thereof in a direction orthogonal to the reference direction.
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Citations
12 Claims
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1. A liquid-jet head unit, comprising:
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an liquid-jet head in which nozzle orifices for ejecting ink droplets are arranged in parallel lines to each other; and
a head case fixed to the liquid-jet head, wherein a linear expansion coefficient of the head case in a reference direction, which is a direction in which the nozzle orifices of the head case are arranged in parallel lines, is set less than a linear expansion coefficient thereof in a direction orthogonal to the reference direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification