A print module includes: a cradle having a nest for receiving a printhead; an elongate printhead assembly received in the nest, the printhead assembly including a printhead having first and second ink ports at opposite longitudinal ends thereof; and a supply assembly slidably movable relative to the nest along an axis perpendicular to a longitudinal axis of the printhead. The supply assembly includes first and second ink couplings fast with the supply assembly and connected to respective first and second ink ports. The print module is configured such that movement of the supply assembly disconnects the second ink coupling prior to disconnection of the first ink coupling.