Patent ID: 9586399
Date: 2017-03-07
CPC Classifications: B41J

Claim:
1. A fluid ejection device comprising: a body defining an interior bore; a fluid reservoir having an opening that receives a predetermined, discrete quantity of fluid, the fluid reservoir defining an interior passage that receives the fluid, the interior passage in fluid communication with the interior bore of the body; and a fluid ejection chip coupled with the body and comprising one or more fluid ejection actuators, the fluid ejection chip having one or more interior fluid paths in fluid communication with the interior bore of the body so that the fluid ejection chip ejects the fluid upon activation of the one or more fluid ejection actuators; wherein the interior passage of the fluid reservoir, the interior bore of the body, and the one or more interior fluid paths are substantially devoid of obstructions such that the fluid is gravity fed to the fluid ejection chip upon entry into the interior passage of the fluid reservoir; and wherein the opening of the fluid reservoir remains open and accessible to atmospheric air during an operation of the fluid ejection chip.