IMPROVED INK SUPPLY CONSTRUCTION AND PRINTING METHOD FOR DROP-ON-DEMAND INK JET PRINTING

摘要

A process and apparatus for drop-on-demand ink jet printing utilize the steps of: selectively ejecting ink drops from drop ejection regions through related orifices (41), feeding ink through capillary feed passages to the drop ejection regions to replace ejected ink drops; and supplying ink to said capillary passages (98) from an innately reticulate foam (50) structure comprising a network of fine, mutually-connected, three-dimensionally branched filaments.