Global patent index - EP 1048471 A2

EP 1048471 A2 2000-11-02 - Method and apparatus for minimizing color hue shifts in bi-directional inkjet printing

Title (en)

Method and apparatus for minimizing color hue shifts in bi-directional inkjet printing

Title (de)

Verfahren und Apparat zur Minimierung von Farbtonverschiebungen in bidirektionalem Tintenstrahldruck

Title (fr)

Méthode et appareil pour minimiser les écarts de teinte chromatique pour l'impression à jet d'encre bidirectionnelle

Publication

EP 1048471 A2 (EN)

Application

EP 00303081 A

Priority

US 30286099 A

Abstract (en)

An inkjet printer (100) utilizes a plurality of printheads (108) in a bi-directional, single-pass mode which deposits ink droplets (401) forming composite colors in the same sequence of droplet deposition regardless of whether the printheads (108) are moved right to left or left to right. Each printhead (108) has an axis of symmetry (720) with multiple pairs of rows of ink expulsion nozzles (210) disposed essentially parallel to each other. Each pair of nozzle rows expulses droplets of ink of a particular color and is symmetrically disposed about the axis of symmetry (720). <IMAGE>

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

B41J 2/21

IPC 8 full level (invention and additional information)

B41J 2/21 (2006.01); B41J 19/14 (2006.01)

CPC (invention and additional information)

B41J 19/142 (2013.01); B41J 2/2132 (2013.01)

Citation (applicant)

US 4917286 A 19900417 - POLLACEK JAMES [US]

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1048471 A2 20001102; EP 1048471 A3 20010404; EP 1048471 B1 20081217; DE 60041100 D1 20090129; JP 2000318189 A 20001121

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