Patent attributes
An apparatus for digital printing on articles (2), comprises a drum (3) rotatable about a central axis (C), carrying piece-holder elements (4) circumferentially distributed around said central axis (C) and each configured for carrying an article (2) being processed. The drum (3) rotates to transfer the piece-holder element (4) through printing stations (9) carrying printheads (10), each operating according to a printing area (15) of predetermined length (L), to create a printing pattern (M) on a side surface (2a) of each article (2), driven in rotation around its own axis (X). Auxiliary movement devices (21) shift the printhead (10) parallel to the main extension direction (D) of the printing area to allow the articles to be processed having an extension greater than the length of the printing area (15). It is also described a printing process implemented by the apparatus.