Stencil sheet roll with detection device

摘要

There is provided a target (74) in a hollow portion formed in a stencil sheet roll (72). A stencil printing machine (12) includes at least one of a distance sensor (82) for measuring a position of the target (74) and a measurement means for measuring a color. The stencil printing machine (12) further includes a discrimination means for discriminating a type of the stencil sheet roll (72) in accordance with the measured position of the target (72) or in accordance with the obtained color information of the target (72). It is possible to discriminate various types of stencil sheet rolls with a simple structure. Therefore, it is possible to prevent a wrong stencil sheet roll from being set in the stencil printing machine (12).