Abstract: A height adjustment apparatus for a print carriage comprises a support for supporting the print carriage and a moving mechanism. The support has an upper support surface configured to slidingly engage a surface of the print carriage. The height of the support surface in a first direction increases in a second direction, perpendicular to the first direction. The moving mechanism is configured to move the support in the second direction, wherein when the support is moved in the second direction, the print carriage surface is configured to slide relative to the support surface to move the print carriage in the first direction.

Abstract: A system to determine a relative position between a moveable part and a working surface is disclosed. The system comprises a controller to control a light emitter from an array of light emitters to emit a signal at a setting, the setting being indicative of a position associated with the light emitter. The controller further to receive a signal from the sensor indicative of the setting. The controller also to determine the relative position between a moveable part and the working surface based on the signal.

Abstract: An example apparatus is for printing to a substrate. The example apparatus comprises a printing fluid device and an air flow device. The printing fluid device is for transferring printing fluid to a substrate. The air flow device is to create an air curtain so that any printing fluid residue from the transfer of the printing fluid to the substrate is at least partially prevented from migrating toward a user of the apparatus.

Abstract: A stand for supporting a printing device, the stand comprising: a first leg and a second leg, the legs having upper ends for vertically supporting a printing device to horizontally span the legs above a supporting surface; a crossbar fixed to the first leg at a first crossbar fixation point and fixed to the second leg at a second crossbar fixation point; and a linkage connected between the first and the second leg, the linkage comprising a first link, a second link and a third link connected in series, wherein: the first link is connected to the first leg in use at a first leg connection point; the second link is connected to the second leg in use at a second leg connection point; and the third link is connected to the crossbar to pivot about a third linkage pivot point and to the first and second links at first and second linkage connection points on opposite sides of the third linkage pivot point.