| 摘要 |
PROBLEM TO BE SOLVED: To prevent cockles from developing by a method wherein wavy deformation is prevented from developing in a printing medium at the belt conveyance of the printing medium from a printing part on an upstream side to a printing part on a downstream side. SOLUTION: In printing equipment, plate cylinders 40 and 50, a plurality of printing parts 4 and 5 having press rolls 46 and 56, which respectively press the plate cylinders 40 and 50, and an upstream side belt-conveying mechanism 7 having a belt 62 arranged between the paper delivering side of the upstream side printing part 4 and the paper feeding side of the downstream side printing part 5 and a suction fan 64 sucking the conveying surface side of a printing paper 45 on the belt 62 are provided. In the upstream side belt-conveying mechanism 7, conveying guide members 78, which make portion except the belt flush with the conveying surface of the belt 62, are provided so as to provide a large number of ribs 78a extendingly provided on the top surface of the conveying guide members 78 along a conveying direction P1.
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