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Modular inkjet printhead with mating formations

  • US 8,292,405 B2
  • Filed: 01/14/2010
  • Issued: 10/23/2012
  • Est. Priority Date: 12/21/2000
  • Status: Expired due to Fees
First Claim
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1. A pagewidth printhead for an inkjet printer, the printhead comprising:

  • an elongate support;

    a plurality of printhead modules supported by the support, each printhead module comprising rows of unit cells, each unit cell comprising a nozzle through which ink is ejected and an actuator for ejecting ink from the nozzle; and

    an engagement mechanism having complementary formations defined on opposite edges of each printhead module to engage the printhead modules together in series along the support, whereinthe engagement mechanism includes a biasing means configured to press the serially arranged printhead modules together,said biasing means includes at least one compression spring; and

    a gap is defined between the unit cells of adjacent printhead modules, the gap extending obliquely with respect to the support.

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