Global Patent Index - EP 4146477 A1

EP 4146477 A1 20230315 - METHOD FOR AN AUTOMATIC ERROR MANAGEMENT OF A PRINTING MACHINE, AND PRINTING MACHINE

Title (en)

METHOD FOR AN AUTOMATIC ERROR MANAGEMENT OF A PRINTING MACHINE, AND PRINTING MACHINE

Title (de)

VERFAHREN ZUM AUTOMATISCHEN FEHLERMANAGEMENT AN EINER DRUCKMASCHINE SOWIE DRUCKMASCHINE

Title (fr)

PROCÉDÉ DE GESTION AUTOMATIQUE D'ERREURS D'UNE MACHINE D'IMPRESSION, ET MACHINE D'IMPRESSION

Publication

EP 4146477 A1 20230315 (DE)

Application

EP 21725721 A 20210506

Priority

  • DE 102020112319 A 20200506
  • EP 2021061982 W 20210506

Abstract (en)

[origin: WO2021224384A1] The invention relates to a method for an automatic error management of a printing machine (101) and to a printing machine (101) with solid printing plates, a control unit (104), and a camera (102). The aim of the invention is to improve the automatic error management in existing inspection systems on the basis of a digital proof. According to the invention this is achieved by a method in which vector-based print image data (122-126) is converted into pixel-based print image data (118) in an RIP computing unit (121); the pixel-based print image data (118) is transmitted from the RIP computing unit (121) to the control unit (101) of the printing machine in the form of target printed images (203); actual printed images (202) are printed on a print carrier (109) using the solid printing plates; the actual printed images (202) are captured by the camera (102); and the actual printed images (202) are compared (204) with the target printed images (203), and the result is stored as the target/actual print image deviation (205).

IPC 8 full level

B41F 5/24 (2006.01); B41F 9/00 (2006.01); B41F 9/02 (2006.01); B41F 33/00 (2006.01); B41F 33/02 (2006.01)

CPC (source: EP)

B41F 5/24 (2013.01); B41F 9/003 (2013.01); B41F 9/023 (2013.01); B41F 33/0036 (2013.01); B41F 33/02 (2013.01); B41P 2233/10 (2013.01)

Citation (search report)

See references of WO 2021224384A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

WO 2021224384 A1 20211111; EP 4146477 A1 20230315

DOCDB simple family (application)

EP 2021061982 W 20210506; EP 21725721 A 20210506