A printer table for supporting a substrate during a printing operation comprises a substrate support surface comprising a plurality of apertures. The apertures are arranged such that a substrate placed on the printer table covers at least one of the apertures. The printer table comprises a plurality of ball valves arranged in fluidic connection with the apertures, where each of the ball valves has an open configuration and a closed configuration and is biased to the open configuration. The printer table also comprises a negative air pressure source configured to apply a negative air pressure through the plurality of ball valves to the plurality of apertures.