Optical detection method during print finishing

Details Optical detection method during print finishing Optical detection method during print finishing

B - Operations, Transporting

65

H

B65H 7/14 (2006.01) B65H 9/20 (2006.01) B65H 43/08 (2006.01)

Patent

CA 2731387

An optical control method for use in print finishing, comprising the following steps: First, guiding a planar printed product along a conveying path past at least one optical sensor (14). Secondly, detecting an electronic image (2) by the optical sensor, wherein the electronic image (2) comprises at least one region of the printed product. Third, extracting orientation information of the printed product from the electronic image. Fourth, comparing (51) the orientation information of the printed product from the electronic image with reference orientation information, and generating at least one signal on the basis of a result of the comparison.

L'invention concerne un procédé de contrôle optique à utiliser dans le traitement après impression, comprenant les étapes suivantes : premièrement, acheminement d'un produit imprimé plat le long d'un tronçon de transport, avec passage devant au moins un capteur optique (14); deuxièmement, enregistrement d'une image électronique (2) prise par le capteur optique, l'image électronique (2) comprenant au moins une zone du produit imprimé; troisièmement, extraction d'une information d'orientation du produit imprimé obtenue à partir de l'image électronique; quatrièmement, comparaison (51) de l'information d'orientation du produit imprimé obtenue à partir de l'image électronique avec une information d'orientation de référence, ainsi que production d'au moins un signal sur la base du résultat de la comparaison.

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