| 摘要 |
In a cylinder throw-on/off apparatus for a printing press, a cylinder throw-on/off motor is driven while the notch of a blanket cylinder opposes the notch of a plate cylinder to throw on/off the blanket cylinder with respect to the plate cylinder, and driven while the notch of the blanket cylinder opposes the notch of an impression cylinder to throw on/off the blanket cylinder with respect to the impression cylinder. A throw-on operation control unit drives the cylinder throw-on/off motor, to control throw-on operation of the blanket cylinder for the plate cylinder and the impression cylinder. A motor drive amount calculation unit obtains a drive amount of the cylinder throw-on/off motor, while controlling the throw-on operation of the blanket cylinder, in accordance with the rotation phase of the printing press.
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