Assembly of at least one revolution object and one ink jet printing machine

An assembly of at least one object having an outer surface of revolution around an axis of revolution and a machine for printing the object, the machine comprising:

• at least four printing stations, each printing station including at least two inkjet printheads, each printhead defining a median plane, the median planes intersecting the outer surface along two impact axes, respectively, seen from an opening angle from the axis of revolution;
• a conveying system including at least one object carrier suitable for carrying the object, the conveying system being suitable for moving the object carrier relative to the printing stations sequentially in at least four printing positions in which the object is respectively across from one of the printing stations, the object carrier being suitable for rotating the object relative to the printing station around the axis of revolution in each of the printing positions, and
• a controller for controlling the conveying system and the printing stations, wherein, in each of the printing positions:
• the two printheads of the printing station situated across from the object are offset relative to one another along the axis of revolution,
• the control system is configured so that said two printheads print the object during at least one printing period, and
• the median planes form an angle strictly smaller than the opening angle.