Inkjet printing machine with calibration bezel

A printing machine for objects with shapes substantially of revolution, said machine comprising:

• means for transporting objects to be printed between at least one loading station for loading the objects on said transport means and an unloading station for unloading said objects from said transport means,
• at least one printing station positioned between the loading station and the unloading station, said printing station comprising at least one printing unit arranged to spray ink on the objects to be printed so as to print said objects, the or each printing unit projecting ink of a different color so as to form a color print, the printing station comprising a corresponding core for holding an object to be printed, said corresponding core being rotatable around its axis such that the or each printing unit projects ink on the object held by said corresponding core,
• means for transferring an object to be printed from the transport means to the printing station and from the printing station to transport means, and
• a calibration bezel comprising a central opening coaxial to the axis of rotation of the core, said bezel being arranged between the transfer means and the printing units such that an object to be printed passes through the central opening before being printed by the printing station,
• wherein the calibration bezel includes movable elements that can be moved between a tightened position of the bezel in which the central opening is small, and a loose position of the bezel in which the central opening is large, and in that it includes means for moving the movable moving elements between the tightened and loose positions so that the calibration bezel is in the tightened position when an object is transferred, by the transfer means, from the transport means to the printing station at least until the central opening is crossed by one end of the object and in the loose position when an object is transferred, by the transfer means, from the transport means to the printing station.