Abstract: A jetting-module cleaning system for cleaning the nozzle plate of a jetting module includes a rotating wiper mechanism. The rotating wiper mechanism includes a rotating sleeve having one or more outlet openings extending from its hollow core to its outer surface, and one or more wiper blades. A pressurized fluid source supplies pressurized cleaning fluid to the hollow core of the rotating sleeve. An actuator rotates the rotating wiper mechanism around its axis. A valve is controlled so that cleaning fluid is sprayed onto the nozzle plate through the outlet openings when the rotating wiper mechanism is rotated to an angular orientation where the outlet openings face the nozzle plate.

Abstract: A jetting-module cleaning system for cleaning the nozzle plate of a jetting module includes a non-rotating shaft and a rotating wiper mechanism. The non-rotating shaft includes one or more outlet openings extending from its hollow core to its outer surface. The rotating wiper mechanism includes a rotating sleeve having one or more openings extending from its hollow core to its outer surface, and one or more wiper blades. The rotating wiper mechanism rotates around the non-rotating shaft. A pressurized fluid source supplies pressurized cleaning fluid to the hollow core of the non-rotating shaft. An actuator rotates the rotating wiper mechanism around its axis. Cleaning fluid is sprayed onto the nozzle plate through the one or more outlet openings in the non-rotating shaft when the openings in the rotating sleeve are aligned with the outlet openings in the non-rotating shaft.