A cap and valve assembly (104; 200) for being coupled to a toner container comprising: a movable valve assembly (210, 224, 226) configured to be positioned in a dispensing position and a closed position by air pressure; and an anti-drip cap movable relative to an output aperture of the movable valve assembly (210, 224, 226) through which toner can be discharged, wherein the anti-drip cap is configured to block the output aperture in the closed position; the movable valve assembly (210, 224, 226) comprising a toner path (208, 220), which when open is configured to allow toner to flow from the toner container to the output aperture along a toner channel formed within the movable valve assembly, and an air inlet path, which when open is configured to couple an air source to the toner container; the movable valve assembly (210, 224, 226) further comprising an elongated outer tube and an elongated inner tube, the elongated inner tube being movable relative to the elongated outer tube within a lumen formed in the elongated outer tube, the elongated outer tube including the output aperture positioned relative to a distal end thereof, the elongated outer tube further including first and second openings for the air inlet path and an opening allowing the toner path to couple toner from the toner container into the toner channel, the elongated inner tube including the air inlet path and the toner channel, the anti-drip cap being coupled to the distal end of the elongated outer tube, wherein in the dispensing position the output aperture is open allowing toner to pass through the output aperture from the toner path and in the closed position the output aperture is closed sealing the toner path preventing toner from passing through the output aperture, wherein in the closed position the elongated inner tube is positioned relative to the elongated outer tube such that the air inlet path is not aligned with the first and/or second openings of the elongated outer tube and the output aperture is not aligned with the toner channel such that the air inlet path and the toner path are closed, and wherein in the dispensing position the elongated inner tube is positioned relative to the elongated outer tube such that the air inlet path is aligned with the first and second openings, the toner channel is aligned with the respective opening of the elongated outer tube, and the output aperture is aligned with the toner channel such that the air inlet path and the toner path are open and toner can flow along the toner channel and be dispensed through the output aperture. a movable valve assembly (210, 224, 226) configured to be positioned in a dispensing position and a closed position by air pressure; and an anti-drip cap movable relative to an output aperture of the movable valve assembly (210, 224, 226) through which toner can be discharged, wherein the anti-drip cap is configured to block the output aperture in the closed position; the movable valve assembly (210, 224, 226) comprising a toner path (208, 220), which when open is configured to allow toner to flow from the toner container to the output aperture along a toner channel formed within the movable valve assembly, and an air inlet path, which when open is configured to couple an air source to the toner container; the movable valve assembly (210, 224, 226) further comprising an elongated outer tube and an elongated inner tube, the elongated inner tube being movable relative to the elongated outer tube within a lumen formed in the elongated outer tube, the elongated outer tube including the output aperture positioned relative to a distal end thereof, the elongated outer tube further including first and second openings for the air inlet path and an opening allowing the toner path to couple toner from the toner container into the toner channel, the elongated inner tube including the air inlet path and the toner channel, the anti-drip cap being coupled to the distal end of the elongated outer tube, wherein in the dispensing position the output aperture is open allowing toner to pass through the output aperture from the toner path and in the closed position the output aperture is closed sealing the toner path preventing toner from passing through the output aperture, wherein in the closed position the elongated inner tube is positioned relative to the elongated outer tube such that the air inlet path is not aligned with the first and/or second openings of the elongated outer tube and the output aperture is not aligned with the toner channel such that the air inlet path and the toner path are closed, and wherein in the dispensing position the elongated inner tube is positioned relative to the elongated outer tube such that the air inlet path is aligned with the first and second openings, the toner channel is aligned with the respective opening of the elongated outer tube, and the output aperture is aligned with the toner channel such that the air inlet path and the toner path are open and toner can flow along the toner channel and be dispensed through the output aperture.