A printing system comprising: a printhead; and a printhead maintenance device (100, 200, 400), the printhead maintenance device (100, 200, 400) comprising: a maintenance housing including a set of maintenance nozzles, an air controlling member, and a waste collector, wherein: the maintenance housing is to move to selectively position the set of maintenance nozzles opposite the printhead, the print head including a nozzle surface having a plurality of nozzles to eject fluid; the set of maintenance nozzles is to provide fluid from the maintenance nozzles onto the nozzle surface of the printhead to remove residue therefrom; the air controlling member is to: form air flow paths (35a, 35b) to direct the fluid provided by the maintenance nozzles at an angle onto the nozzle surface, wherein the angle at which the fluid provided is directed onto the respective nozzle surface is controllable by the air controlling member; and direct the residue from the nozzle surface to the waste collector; wherein the air controlling member is configured to change an amount of air pressure of a respective air flow path (35a, 35b) to change the angle in which the fluid is directed onto the nozzle surface; and the waste collector is to collect the residue removed from the nozzle surface. a printhead; and a printhead maintenance device (100, 200, 400), the printhead maintenance device (100, 200, 400) comprising: a maintenance housing including a set of maintenance nozzles, an air controlling member, and a waste collector, wherein: the maintenance housing is to move to selectively position the set of maintenance nozzles opposite the printhead, the print head including a nozzle surface having a plurality of nozzles to eject fluid; the set of maintenance nozzles is to provide fluid from the maintenance nozzles onto the nozzle surface of the printhead to remove residue therefrom; the air controlling member is to: form air flow paths (35a, 35b) to direct the fluid provided by the maintenance nozzles at an angle onto the nozzle surface, wherein the angle at which the fluid provided is directed onto the respective nozzle surface is controllable by the air controlling member; and direct the residue from the nozzle surface to the waste collector; wherein the air controlling member is configured to change an amount of air pressure of a respective air flow path (35a, 35b) to change the angle in which the fluid is directed onto the nozzle surface; and the waste collector is to collect the residue removed from the nozzle surface. the maintenance housing is to move to selectively position the set of maintenance nozzles opposite the printhead, the print head including a nozzle surface having a plurality of nozzles to eject fluid; the set of maintenance nozzles is to provide fluid from the maintenance nozzles onto the nozzle surface of the printhead to remove residue therefrom; the air controlling member is to: form air flow paths (35a, 35b) to direct the fluid provided by the maintenance nozzles at an angle onto the nozzle surface, wherein the angle at which the fluid provided is directed onto the respective nozzle surface is controllable by the air controlling member; and direct the residue from the nozzle surface to the waste collector; wherein the air controlling member is configured to change an amount of air pressure of a respective air flow path (35a, 35b) to change the angle in which the fluid is directed onto the nozzle surface; and form air flow paths (35a, 35b) to direct the fluid provided by the maintenance nozzles at an angle onto the nozzle surface, wherein the angle at which the fluid provided is directed onto the respective nozzle surface is controllable by the air controlling member; and direct the residue from the nozzle surface to the waste collector; wherein the air controlling member is configured to change an amount of air pressure of a respective air flow path (35a, 35b) to change the angle in which the fluid is directed onto the nozzle surface; and the waste collector is to collect the residue removed from the nozzle surface.