Sebastien Michenet - Saint Denis de l'Hotel,
Benoit Berthe - Orleans,
Uwe Jaspers - Minnetonka MN,
DATACARD CORPORATION - Minnetonka MN
Embodiments of the invention provide a method of and apparatus for graphically marking a series of portable objects, such as a card, each portable object being graphically marked on a respective zone by a respective marking device, wherein the marking devices are configured to perform the same marking operation simultaneously on a plurality of portable objects.