Pulse jet print head assembly having multiple reservoirs and methods for use in the manufacture of biopolymeric arrays

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 a multiple printhead die printhead and a multiple reservoir housing affixed to the multiple die printhead. In using the subject printhead assemblies, the firing chambers of the printhead assembly are loaded with a volume of fluid that includes a biopolymer or precursor thereof. The loaded printhead assembly is then placed in opposing relation to a surface of a substrate and actuated to deposit a volume of fluid on the substrate. The subject printhead assemblies find use in a variety of applications, including the production of biopolymeric arrays.