Patent ID: 8702216
Filing Date: 2014-04-22
Classification: B41J

Abstract:
1. A method for forming an ink jet printhead particulate filter, comprising: aligning a polymer sheet with a patterned mask, wherein the patterned mask comprises a plurality of openings which expose first portions of the polymer sheet and an opaque layer which covers second portions of the polymer sheet; removing the exposed first portions of the polymer sheet by directing a laser beam through each of the plurality of openings within the patterned mask and onto the polymer sheet to ablate the exposed first portions of the polymer sheet to form a plurality of filters each comprising a plurality of filter openings through the polymer sheet, wherein the removal of the exposed first portions of the polymer sheet configures the plurality of filters to service a plurality of printhead nozzles within a printhead and further configures each filter of the plurality of filters to service only one printhead nozzle within the printhead.