| 摘要 |
A printing machine in which a plate cylinder 1 is formed with a slit 11 for accepting the leading and trailing edges of a printing plate PP, a plurality of small holes 12 are arranged along the slit 11 and open to the surface of the plate cylinder 1, an air tubular path 2 is connectable both to a suction source 5 and an air delivery source 4 and communicates with the plural small holes 12, and a switching mechanism 3 is disposed in the air tubular path to switch between the air suction operation and the air delivery operation through the opening portions of the plural small holes 12. The switching mechanism 3 is disposed in the air tubular path 2 that lies between the plate cylinder 1 and both of the air suction and delivery sources 5 and 4. An operating unit 34 is disposed in or on the plate cylinder 1 for operating the switching mechanism 3.
|
