| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for supplying ink to a plurality of printing presses from one ink supply apparatus so that the ink is stably supplied to the printing presses in proper amounts necessary for the printing presses throughout a printing period. SOLUTION: Presure reducing valves are provided to the ink supply piping to individual printing presses and back pressure valves are provided to the return piping from the printing presses and ink flowability detection mechanisms are provided between the pressure reducing valves and the back pressure valves. The set values of the pressure reducing valves and/or back pressure valves are regulated on the basis of the values showing the flowability of ink detected by the ink flowability detection mechanisms so that the values enter a predetermined range. |
