×

Printhead with nozzle face recess to contain ink floods

  • US 7,942,503 B2
  • Filed: 06/10/2009
  • Issued: 05/17/2011
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Fees
First Claim
Patent Images

1. An inkjet printhead comprising:

  • a silicon wafer substrate that defines a plurality of ink inlet channels;

    a plurality of replicated nozzle arrangements positioned on the substrate to receive ink from the ink inlets and eject ink droplets onto a media substrate, each nozzle arrangement having nozzle chamber walls, a roof positioned on the nozzle chamber walls defining an ink ejection port;

    wherein,the roof defines a recess about the ink ejection port to inhibit ink spread.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×