(19)
(11) EP 2 567 818 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A2)

(48) Corrigendum issued on:
08.05.2013 Bulletin 2013/19

(43) Date of publication:
13.03.2013 Bulletin 2013/11

(21) Application number: 12182352.0

(22) Date of filing: 30.08.2012
(51) International Patent Classification (IPC): 
B41F 31/04(2006.01)
B41F 31/36(2006.01)
B41F 35/04(2006.01)
 B41F 31/20(2006.01)
B41F 33/10(2006.01)
(84) Designated Contracting States:
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 States:
BA ME

(30) Priority: 12.09.2011 JP 2011198387

(71) Applicant: Komori Corporation
Sumida-ku Tokyo (JP)

(72) Inventors:
  • Hirano, Masahiro
    Ibaraki (JP)
  • Totsuka, Hiromichi
    Ibaraki (JP)

(74) Representative: Stork Bamberger 
Patentanwälte Postfach 73 04 66
22124 Hamburg
22124 Hamburg (DE)

   


(54) Ink film thickness distribution forming method and apparatus


(57) In an ink film thickness distribution forming method in an ink supply apparatus including an ink fountain (1) storing an ink (2), a plurality of ink fountain keys (4-1 - 4-n) arranged in the ink fountain (1), an ink fountain roller (2) to which the ink is supplied from the ink fountain (1) in accordance with the opening ratios of the plurality of ink fountain keys (4-1 - 4-n), an ink ductor roller (5) to which the ink is transferred from the ink fountain roller (2) by an ink feed operation, and an ink roller group (6) including at least one ink form roller (6-1 - 6-4) to which the ink transferred to the ink ductor roller (5) is supplied, the throw-off operation of the ink form roller (6A1, 6A2) positioned at an end of the ink roller group (6) is performed after the end of a print job using a preceding printing plate (S103). The ink feed operation of the ink ductor (5) roller is stopped after the end of the print job using the preceding printing plate (S134). The ink roller group (6) is divided into a plurality of roller subgroups after the end of the print job using the preceding printing plate (S135). The ink in at least one of roller subgroups out of the divided roller subgroups is removed (S137 -S145). An ink film thickness distribution forming apparatus is also disclosed.