EP 0730959 B1 20000119 - Method of producing a reference model to be used for automatic quality control of images on paper
Title (en)
Method of producing a reference model to be used for automatic quality control of images on paper
Title (de)
Verfahren zur Herstellung eines Referenzmodells für automatische Qualitätskontrolle von Bildern auf Papier
Title (fr)
Procédé de production d'un modèle de référence destiné à être utilisé pour le contrôle automatique de la qualité d'impression d'une image sur du papier
Publication
Application
Priority
IT MI950430 A 19950307
Abstract (en)
[origin: EP0730959A1] The electronically-produced reference model is made by preparing a group of test sheets with complete images, printed by the same method and procedure as that used for the serial print run. The printed images are registered and the density values for the pixels making up the images are memorised. Each pixel is given a minimum value in the assembly of images in a group, and a model of the printed design is formed during the first printing phase. The process is repeated during subsequent printing phases, with the pixel density values (a10-a23) maintained at their required levels.
IPC 1-7
IPC 8 full level
B41F 33/14 (2006.01); B41F 33/00 (2006.01); G01N 21/88 (2006.01); G06T 1/00 (2006.01); G06T 7/00 (2006.01)
CPC (source: EP KR US)
B41F 33/0081 (2013.01 - EP US); B41J 5/30 (2013.01 - KR)
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0730959 A1 19960911; EP 0730959 B1 20000119; AT E188916 T1 20000215; AU 4585296 A 19960919; AU 692991 B2 19980618; CA 2171165 A1 19960908; CA 2171165 C 20070417; CN 1074996 C 20011121; CN 1138692 A 19961225; DE 69606206 D1 20000224; DE 69606206 T2 20000810; IT 1276010 B1 19971024; IT MI950430 A1 19960907; IT MI950430 D0 19950307; JP 2007168449 A 20070705; JP H08276569 A 19961022; KR 100362023 B1 20030509; KR 960033772 A 19961022; RU 2161792 C2 20010110; UA 45320 C2 20020415; US 5778088 A 19980707
DOCDB simple family (application)
EP 96810121 A 19960304; AT 96810121 T 19960304; AU 4585296 A 19960304; CA 2171165 A 19960306; CN 96102198 A 19960306; DE 69606206 T 19960304; IT MI950430 A 19950307; JP 2007066993 A 20070315; JP 5009396 A 19960307; KR 19960005989 A 19960307; RU 96104359 A 19960306; UA 96030834 A 19960304; US 61039096 A 19960304