Printer, printhead, apparatus and method for air-free ink delivery

摘要

A printer having an ink delivery system with an air purge to ambient. A vent sealing material is disposed in an air vent. The vent sealing material is pervious to air when dry and impervious to air when wetted by the ink. Also, when wet, the vent sealing material forms a seal in the air vent so that the ink delivery system is sealed in an air free and liquid tight manner.