Patent ID: 9126399
Filing Date: 2015-09-08
Classification: B41F,B41P

Abstract:
1. An ink supply method in an ink supply apparatus including an ink fountain storing an ink, a plurality of ink fountain keys arranged in the ink fountain, an ink fountain roller to which the ink is supplied from the ink fountain in accordance with opening ratios of the plurality of ink fountain keys, an ink ductor roller to which the ink is transferred from the ink fountain roller by an ink feed operation, and an ink roller group to which the ink transferred to the ink ductor roller is supplied, comprising the steps of: performing a throw-off operation of an ink form roller positioned at an end of the ink roller group after an end of a print job using a preceding printing plate; stopping the ink feed operation of the ink ductor roller after the end of the print job using the preceding printing plate; dividing the ink roller group into a plurality of roller subgroups after the end of the print job using the preceding printing plate; and scraping and removing the ink in some roller subgroups out of the divided roller subgroups by an ink scraping member.