| 摘要 |
A device for positioning a sheet-shaped material by providing a plurality of pairs of pins on a conveying path. Printing plate precursors are classified, on the basis of widths thereof, into large-sized and small-sized. Two pairs of positioning pins are provided for each size, and are disposed so as to be offset in a direction of conveying a printing plate precursor toward a rotating drum. A width of a small-sized printing plate precursor is smaller than a pitch dimension of a pair of positioning pins for large-sized printing plate precursors. Therefore, the small-sized printing plate precursor abuts and is positioned by positioning pins for small-sized printing plate precursors which are provided further ahead. Moreover, a large-sized printing plate precursor directly abuts and is positioned by the positioning pins for large-sized printing plate precursors, so as not to be interfered with by the positioning pins for small-sized printing plate precursors.
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