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.