| 摘要 |
PROBLEM TO BE SOLVED: To automatically clean a main roller of an ink device. SOLUTION: At an upper part of a main roller 6, a main roller cleaning device 10 having a cleaning cloth supply roll 13 for paying out a cleaning cloth 12, a cleaning cloth take-up roll 14 for winding up the cleaning cloth, a pressing means 15 for pressing the cleaning cloth 12 to the outer peripheral face of the main roller 6, and a cleaning liquid supply nozzle 16 for supplying a cleaning liquid to the cleaning cloth 12 is arranged. A part of the cleaning cloth 12 is impregnated with the cleaning liquid, which is pressed to the outer peripheral face of the main roller 6 by the pressing means 15. By rotating the main roller 6, a residual ink on the outer peripheral face of the main roller can be wiped off by the cleaning cloth. |
