To provide a printing device which performs multicolor printing or the like whether a plurality of print drum units attachable to and detachable from a printing device body are configured or not, the printing device being adaptable to small-size sheets, including a top-bottom moving means, and preventing interference of an adjacent print drum with a paper gripping cylinder even when a phase between the adjacent print drums changes, or preventing contact between clampers.

A multicolor stencil printing device 100 having print drums 1a and 1b arranged around a paper gripping cylinder 6 includes a top-bottom moving mechanism for adjusting the rotational-direction phases of the print drums 1a and 1b with respect to that of the paper gripping cylinder 6. A concave notch angle θ2 formed according to the range of a concave 8 centering on the rotational center of the paper gripping cylinder 6 is set equal to or larger than a value obtained by adding together a clamper width angle θ3, a master tip margin angle θ4, and the one-side angle θ5 of a top-bottom moving amount.

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