To prevent scratch or dirt on a printing surface of a paper sheet, a conveyance failure of the paper sheet, or a pre-printing alignment failure of the paper sheet, in a paper sheet conveyance device of, for example, a cylinder type screen printing machine.

A squeegee 11 pressurizes a screen plate 9a of a printing screen frame 9 reciprocating when it is in synchronization with rotation of a printing cylinder 1 in which a paper sheet 7 is conveyed, so that printing is sequentially performed on the paper sheets 7 positioned by the printing cylinder 1, from an conveyance side thereof. In a non-contact type conveyance device 12 of a paper sheet conveyance device 2, a space for making gas flow out is formed between the paper sheet 7 and an edge of a suction tube 15 that blows the gas to the paper sheet 7 facing a conveyance belt 14, so that suction action in the space makes the conveyance belt 14 hold the paper sheet 7 to convey it to the printing cylinder 1.