Pulse jet printhead assemblies having multiple reservoirs and multiple printhead dies, as well as methods for their use in the deposition of fluids, typically fluids containing a biopolymer or precursor thereof, onto a substrate surface, are provided. The subject printheads are characterized by having...http://www.google.de/patents/US6935727?utm_source=gb-gplus-sharePatent US6935727 - Pulse jet print head assembly having multiple reservoirs and methods for use in the manufacture of biopolymeric arrays
