Patent ID: 8262192
Filing Date: 2012-09-11
Classification: B41J

Abstract:
1. A printing device, comprising: a gas source; a printhead having a nozzle plate with nozzles in the nozzle plate, wherein the nozzles are fluidly connected to corresponding pumping chambers; and a gas outlet positioned adjacent to the nozzle plate, wherein the gas outlet is in fluid communication with the gas source and the gas outlet is configured to provide gas to an exposed surface of the nozzle plate so that the gas flow is substantially parallel to the surface of the nozzle plate, at least one edge of the nozzle plate along the exposed surface forming a part of the gas outlet, the at least one edge of the nozzle plate being rounded or chamfered to maintain the gas close to the exposed surface of the nozzle plate without turbulently flowing away from the printhead, wherein the gas source is configured to supply gas at a rate of less than 2 m/s.