Abstract: Printers and associated printer maintenance methods and apparatus are disclosed. An example printer includes a nozzle to dispense fluid; a wiper to wipe the nozzle during a maintenance event; and a controller to cause the nozzle to dispense fluid during the maintenance event while the wiping material engages or is immediately adjacent the nozzle to deter a substance from being present within the nozzle.

Abstract: In example implementations, an apparatus is provided. The apparatus includes a dispense element, a memory, and a processor. The dispense element dispense a fusing agent onto a build material. The memory stores an absorption level decay data of the fusing agent and at least one adjustment recipe. The processor is communicatively coupled to the dispense element, and the memory. The processor controls the dispense element to dispense the fusing agent based on an adjustment recipe of the at least one adjustment recipe that is selected. The adjustment recipe is selected based on an absorption level determined from the absorption level decay data and an age of the fusing agent.

Abstract: Printers and associated printer maintenance methods and apparatus are disclosed. An example printer includes a nozzle to dispense fluid; a wiper to wipe the nozzle during a maintenance event; and a controller to cause the nozzle to dispense fluid during the maintenance event while the wiping material engages or is immediately adjacent the nozzle to deter a substance from being present within the nozzle.

Abstract: A printer includes a print media transport to transport a print media through a print zone, the transport of the print media to produce airborne particles, and a particle diverter to divert the airborne particles away from the print zone from a vicinity of the print media transport.

Abstract: A printer includes a print media transport to transport a print media through a print zone, the transport of the print media to produce airborne particles, and a particle diverter to divert the airborne particles away from the print zone from a vicinity of the print media transport.

Abstract: In one example, a shroud to protect a printhead in a print bar includes: an elongated body having an opening therein through which a printhead may dispense liquid past the shroud when the shroud is affixed to the print bar; and a bump on an exterior surface of the body next to the opening. The bump is configured to guide a leading edge of print media away from the printhead during printing when the shroud is affixed to the print bar and the print bar is installed in a printer.

Abstract: In one example, a shroud to protect a printhead in a print bar includes: an elongated body having an opening therein through which a printhead may dispense liquid past the shroud when the shroud is affixed to the print bar; and a bump on an exterior surface of the body next to the opening. The bump is configured to guide a leading edge of print media away from the printhead during printing when the shroud is affixed to the print bar and the print bar is installed in a printer.

Abstract: In one embodiment, a component for dispensing a fluid includes: a plurality of fluid ejection orifices arrayed in a plane; and an elongated bumper extending along one side of the array generally in a plane intersecting the plane of the array and the bumper having a protruding exterior surface that includes a first part inclining away from the array and a contiguous second part inclining back toward the array.

Abstract: In one embodiment, a component for dispensing a fluid includes: a plurality of fluid ejection orifices arrayed in a plane; and an elongated bumper extending along one side of the array generally in a plane intersecting the plane of the array and the bumper having a protruding exterior surface that includes a first part inclining away from the array and a contiguous second part inclining back toward the array.

Abstract: One aspect of this disclosure relates to a printer apparatus, comprising an orifice plate having a nozzle orifice formed therein. Ink can flow through the nozzle orifice. The orifice plate has an orifice plate surface energy and the ink has an ink surface tension. A wiper blade can be disposed proximate the orifice plate. The wiper has a wiper blade surface energy. The wiper blade surface energy is greater than or equal to the ink surface tension. The ink surface tension is greater than or equal to the orifice plate surface energy.

Abstract: One aspect of this disclosure relates to a printer apparatus, comprising an orifice plate having a nozzle orifice formed therein. Ink can flow through the nozzle orifice. The orifice plate has an orifice plate surface energy and the ink has an ink surface tension. A wiper blade can be disposed proximate the orifice plate. The wiper has a wiper blade surface energy. The wiper blade surface energy is greater than or equal to the ink surface tension. The ink surface tension is greater than or equal to the orifice plate surface energy.