| 摘要 |
PROBLEM TO BE SOLVED: To alleviate the load of cleaning on an operator. SOLUTION: A sheet fed from an inserting plate 17 is printed by printing units 12A to 12D, and coated with glue on a printing surface by a glueing unit 13. When a sheet 16E by predetermined number of sheets from a final sheet 16A is conveyed to a position immediately before the unit 13, a gluing roller 40 is separated from a rubber cylinder 34. When the least sheet 16A is passed through the unit 13, the cylinder 34 is thrown off from an impression cylinder 25.
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