Dover Europe Sarl

Gabriel Leopold

Jean-Marie Rolland

Nesrine Rebzani

Bénédicte Bertolami

David Darnaud

A method for forming at least one plurality of printed dots on a surface, with help of at least one plurality of drops generated by a printhead of a continuous inkjet printer. The method comprises, for each plurality of printed dots: deciding, whether all drops of the at least one plurality of drops are protected from perturbations due to the air resistance or whether at least one drop of the at least one plurality of drops is not protected from the perturbations; generating and charging each drop of the at least one plurality of drops according to whether it is protected from the perturbations or not protected from the perturbations; and printing the at least one plurality of drops on the surface.

Method for printing a plurality of drops at high speed

A printed graphical code has H lines and a W columns i (i=1, . . . W) and a pattern of H&#xd7;W cells, each at the intersection of a column and a line. Each cell or dot is formed with a drop from a printhead of a continuous inkjet printer and two successive dots of a column are separated by at least one non printed cell. A method for printing each column comprises: retrieving or selecting charges to be applied to each drop for printing the dots of the column from a set of data or database of charges for each of a number of configurations of drops to be printed, the number being equal to or less than 2if H is an even number or equal to or less than 2if H is an odd number; charging the drops for printing according to the retrieved charges; and printing the column.

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Malissard, France

Gabriel Leopold