| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that for example, when many solid images are to be printed to cause the consumption of a large amount of ink, the sufficient supply of the ink to an ink fountain is often difficult, bringing insufficient density of the printed images. SOLUTION: When the ink is supplied to the ink fountain 27 by an ink pump 6 by the actuation of a pump motor 10 to be supplied to a printing drum 21, and when the ink is detected by an ink sensor 1, corresponding to the length of the operation time tEC of the motor 10 per unit time t, after the output of an ink detection signal from the sensor 1, the amount of the ink to be supplied to the printing drum 21 is changed. For the above process, a controller 30 for controlling the motor 10 is provided. |
