Patent ID: 6740530
Filing Date: 2004-05-25
Classification: B01J,B01L,B41J,C40B,Y10T

Abstract:
A method of testing for proper operation of a drop ejector system having at least one drop ejector comprising:inserting a reagent cartridge which contains a fluid into an interior chamber of a drop ejection mechanism of the drop ejector system; locating the at least one drop ejector over a test substrate; operating the drop ejector system in a test mode to eject drops at at least one selected location on the test substrate; scanning the test substrate by use of a scanner to determine whether the at least one selected location contains a fluid drop; and determining from the scanning step whether the at least one drop ejector of the drop ejector system has ejected a drop, by correlating the at least one selected location to the at least one drop ejector.