Patent ID: 7600849

Claim:
A method, comprising: ejecting liquid having a first composition from a first droplet ejection deposition system that includes a first printhead and a first fluid source, wherein the first printhead has a first number of flow paths, each flow path of the first number of flow paths including an inlet, a pumping chamber and a nozzle, and wherein the first fluid source is configured to be self-contained and to hold a first volume of liquid; collecting information on the behavior of the liquid under a variety of ejection conditions for the first droplet ejection deposition system; selecting ejection conditions based on the information; and ejecting liquid having the first composition from a second droplet ejection deposition system that includes a second printhead and a second fluid source under the selected ejection conditions, wherein the second printhead has a second number of substantially identical flow paths, each of the second number of flow paths being substantially identical to at least one of the first number of flow paths, wherein the second fluid source is not self-contained or is configured to hold a second volume of liquid larger than the first volume, and wherein the second number is at least ten times larger than the first number.