| 摘要 |
PROBLEM TO BE SOLVED: To realize enhancing of a cleaning work by simultaneously batch cleaning rollers of a rotary press. SOLUTION: A roller group from an ink roller to a blanket cylinder 10 is thrown on, and slowly operated without inserting a sheet to a rotary press. A cleaning liquid is supplied to an ink roller group 16B to be circulated through contact rollers to the cylinder 10, then a doctor is brought into contact with a part of the group 16B, and a cleaning work for scraping and removing a dirt adhering to the roller together with the liquid is repeated.
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