| 摘要 |
An apparatus for changing operational plate cylinders during rotary press operation is provided. This apparatus is possible to substantially equalize an actual print count to a set print count before change of operational plate cylinders. This can eliminate waste to print undesired recording paper (paper loss) and lead to cost down. A rotary press includes at least two or more plate cylinders (P), drive means (13, 13') for driving the plate cylinders (P) and switching means (15) for selectively switching the plate cylinders (P) in a printable state and in an unprintable state. In the apparatus (1) for changing operational plate cylinders during rotary press operation, input console means (2) is at least available for designating (x) an earlier operational plate cylinder (FP) that is switched from the printable state to the unprintable state by the switching means (15) and a later operational plate cylinder (RP) that is switched from the unprintable state to the printable state by the switching means (15) among the two or more plate cylinders (P), and setting (y) a print count before change of operational plate cylinders.
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