Hewlett-packard Development Company, L.p.

Toni Gracia

Alejandro Campillo

Angel Martinez Barambio

Marcos Casaldaliga

Alex Andrea

Jordi Sender

Marc Bautista

Pascal Ruiz

Jean Frederic Plante

Joan Campderros

Pasqual Batalla

Angel Alvarez

The invention relates to a calibration method for a printer having a mechanism for advancing a medium in a direction of media advance comprising the following steps: (a) providing a printhead, the printhead having a swath height in the direction of media advance; (b) providing an estimate of either the swath height or the characteristic of the mechanism; (c) printing a base pattern on a medium using the printhead; (d) printing an overlay pattern on the medium using the printhead to form an interference pattern; (e) advance the medium of a predetermined distance using the mechanism at a time between the printing of the base pattern and the printing of the overlay pattern; (f) analyze an optical evaluation of the interference pattern; (g) evaluate as either: (i) the swath height if the characteristic of the mechanism is known or estimated; or (ii) the characteristic of the mechanism if the swath height is known or estimated.

Calibration method for a printer

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Sant Cugat del Valles, Spain

Toni Gracia