Global Patent Index - EP 0729846 B1

EP 0729846 B1 2000-01-12 - Printed reference image compensation

Title (en)

Printed reference image compensation

Title (de)

Bildkompensation mittels gedruckter Referenzmarken

Title (fr)

Compensation d'image au moyen de marques de référence imprimées

Publication

EP 0729846 B1 (EN)

Application

EP 96301419 A

Priority

US 39776795 A

Abstract (en)

[origin: EP0729846A2] The present invention provides for controlling image registration of images printed on a substrate of an ink jet web press. Registration marks are printed on the substrate, relative to the print location of the images, and then read. The registration marks are used to determine spatial discrepancies in subsequent images. Dynamic corrections correct for spatial discrepancies in subsequent images to assure good overlay of image data onto previously printed images, and static corrections correct for spatial discrepancies in alignment of subsequent printheads to each other to assure good reference of image data onto previously printed images. <IMAGE> <IMAGE>

IPC 1-7 (main, further and additional classification)

B41J 25/34; B41J 11/46

IPC 8 full level (invention and additional information)

B41J 11/46 (2006.01)

CPC (invention and additional information)

B41J 11/46 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family

EP 0729846 A2 19960904; EP 0729846 A3 19980603; EP 0729846 B1 20000112; DE 69606076 D1 20000217; DE 69606076 T2 20000831