Method of printing

A method of printing information on each article of a set of articles arranged in generally parallel lanes, at a printing station, the method comprising:

• providing the printing station including
• a gantry,
• a carriage mounted to the gantry, and
• a printing apparatus having a housing mounted on the carriage, and a print head, the printing apparatus being movable transversely across the lanes;
• continuously moving the printing apparatus transversely across the lanes to bring the printing apparatus into registry with each article of the set in turn;
• at each registry position, whilst continuing to move the printing apparatus, moving the print head of the apparatus relative to the housing and relative to the respective article to a printing position in which the print head is capable of printing information on the article;
• continuing to move the printing apparatus transversely relative to the article whilst effecting printing with the print head;
• and
• when the information is printed, whilst continuing to move the printing apparatus transversely, moving the print head relative to the housing out of the printing position.