Abstract: An inkjet printing device comprising a plurality of printheads and a plurality of servicing modules, each module comprising first and second sets of servicing components and being arranged to service exclusively a given printhead, said first set comprising a spittoon and said first or said second set being independently replaceable.

Abstract: To assemble a printer chassis comprising three structural aluminium beams extending between two structural sideplates, the printer carriage beam is first attached to the sideplates by means of attachment points arranged along a straight line and then the printing beam and lower beam are attached to provide a vibration- and deformation-resistant chassis relative to which all the other printer components are referenced. Slider rods are mounted on the printer carriage beam by means of screws which hold the rods against the beam to keep them straight. The screws also pass through apertures in rod supports, the apertures being sized to permit longitudinal thermal movements of the rods relative to the beam.

Abstract: An air pressurization system is incorporated as part of a replaceable auxiliary ink supply for an inkjet printer The auxiliary ink supply cartridge includes a pressurized container having air, ink and electrical signal connections. The air pressure applied to the auxiliary ink supply is monitored to be maintained in a predetermined range in accordance with a start-up sequence, an operational sequence, a waiting time, and a close-down sequence.

Abstract: A unitary ink supply tube guiding system for a large format inkjet printer includes a tube guide having a bottom comprising a tube support surface, and generally upwardly, preferably vertically, extending front and rear walls and an anti-buckling wall for confining movement of the ink tubes to prevent tube buckling. The ink tubes are supported throughout a full length to convey ink from stationary reservoirs to printheads mounted on a transversely movable printhead carriage. The tubes are preferably bundled together in at least one vertically extending plane and extend through front and rear substantially parallel reaches joined by a bend. The ink tubes are bundled together along a portion of their length by a protective sheath having wear resistant outer ribs which contact the tube guide. Anti-buckling stretch resistant tension ribs are preferably located along one side of the protective carrier or sheath.

Abstract: An air pressurization system is incorporated as part of a replaceable auxiliary ink supply for an ink jet printer. The auxiliary ink supply cartridge includes a pressurized container having air, ink and electrical signal connections. The air pressure applied to the auxiliary ink supply is monitored to be maintained in a predetermined range in accordance with a start-up sequence, an operational sequence, a waiting time, and a close-down sequence.