Abstract: A fluid transport apparatus facilitates flow of fluid from a source to a receptacle. The fluid transport apparatus includes a fluid transport conduit for transport of fluid through the conduit, the conduit being coupled between a fluid supply and a fluid receptacle, a compressor conduit proximate the fluid transport conduit along a portion of the fluid transport conduit between the fluid supply and the fluid receptacle, and a pump coupled to the compressor conduit for injecting fluid into the compressor conduit, and a vent that is operated to selectively enable pressurization and venting of the compressor conduit to compress and decompress the portion of the fluid transport conduit proximate the compressor conduit to pump fluid through the fluid transport conduit.

Abstract: An ink stick for use in a phase change ink imaging device is provided, the phase change ink imaging device having an ink stick feed system comprising at least one ink stick feed channel for receiving the ink stick and for moving the ink stick through the ink stick feed channel. The ink stick comprises a three dimensional ink stick body configured to fit within a feed channel of a phase change ink imaging device. The ink stick has an exterior surface with an interface element formed in the exterior surface of the ink stick body. The interface element interfaces with an appropriately equipped ink loader to provide a reference signal to a control system. The controller receives the reference signal and then may translate the reference signal into control information pertaining to the ink stick.