Patent ID: 6623700
Filing Date: 2003-09-23
Classification: B41J,Y10T

Abstract:
A biofluid drop ejection device which ejects biofluid drops, comprising:a biofluid drop ejection mechanism having a transducer which generates energy and a focusing lens used to emit the biofluid drops; a reagent cartridge holding a biofluid, isolated and removable from the drop ejection mechanism to avoid contamination between the biofluid drop ejection mechanism and the reagent cartridge, the reagent cartridge in operative connection with the drop ejection mechanism such that upon operation of the drop ejection mechanism, the biofluid is emitted as the biofluid drops; and a level sensor positioned to sense a height of the biofluid within the cartridge, wherein upon sensing the height of the biofluid below a defined level, an adjustment is made to at least one of the biofluid, the reagent cartridge, and the transducer.