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Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer

  • US 6,332,677 B1
  • Filed: 09/14/1999
  • Issued: 12/25/2001
  • Est. Priority Date: 04/02/1992
  • Status: Expired due to Fees
First Claim
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1. A printhead having an array of ink nozzles aligned respectively over a plurality of firing chambers, comprising:

  • a die substrate including truncated end portions with a column of the firing chambers located on said substrate between said truncated end portions, with said firing chambers positioned to be a predetermined distance apart from each other and extending in a longitudinal direction along at least one outside edge of said substrate;

    ink channel means connecting with said firing chambers, for passing ink from an underside of said substrate upwardly around said at least one outside edge of said substrate to said firing chambers; and

    a print cartridge for supporting said substrate in a fixed position, said print cartridge including end support means for supporting and engaging said truncated end portions of said substrate to allow said ink to flow around said at least one outside edge and into said firing chambers, said end support means including a support surface including a central peninsula for engaging an underside of said truncated end portions and an underside of an interior portion of said substrate, said interior portion located intermediate of said truncated end portions.

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