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US 7,246,879 B2Granted
Thermally stable pagewidth printhead assembly
AssigneeSilverbrook Research Pty Ltd
InventorKia Silverbrook
Life of this patent
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Abstract
A pagewidth printhead assembly is provided comprising an elongate support beam, an elongate shell at least partially enclosing and restraining the support beam and printhead integrated circuits mounted to the support beam so as to be substantially aligned with one another along the pagewidth. The shell has an effective coefficient of thermal expansion substantially equal to that of the printhead integrated circuits.
Claims8
A pagewidth printhead assembly comprising:
- an elongate support beam;
- an elongate shell at least partially enclosing and restraining the support beam;
- and
- a plurality of printhead integrated circuits mounted to the support beam so as to be substantially aligned with one another along said pagewidth,
- wherein the shell has an effective coefficient of thermal expansion substantially equal to that of the plurality of printhead integrated circuits.
2 more elements
Dependencies are inferred from the claim text.