Patent ID: 8096643
Filing Date: 2012-01-17
Classification: B41J

Abstract:
1. A fluid ejection device, comprising: a fluid chamber; a resistor formed within the fluid chamber; a fluid restriction communicated with the fluid chamber; and an orifice communicated with the fluid chamber, wherein the fluid ejection device is adapted to eject drops of a non-aqueous fluid, wherein a width of the fluid restriction is approximately equal to or greater than a length of the fluid restriction with the width of the fluid restriction being in a range of approximately 10 microns to approximately 16 microns in combination with the length of the fluid restriction being in a range of approximately 5 microns to approximately 10 microns, and wherein a ratio of a square root of an area of the resistor to a diameter of the orifice is in a range of approximately 1.75 to approximately 2.25.