Mimeographic printing machine.

摘要

A mimeographic printing machine comprises: a pair of first and second sheet supplying rollers (2,4), the first sheet supplying roller (2) touchable to and departable from the second sheet supplying roller, the first and second sheet supplying rollers clamping a printing sheet when the first sheet supplying roller touches to the second sheet supplying roller, and the first and second sheet supplying rollers rotatable to convey the printing sheet; a rotary cylindrical drum having a tubular wall on which a stencil paper is wound; pushing means for pushing the printing sheet conveyed by rotating the first and second sheet supplying rollers against the stencil paper wound on the rotary cylindrical drum in order to perform a mimeographic printing operation; jamming detecting means for detecting abnormal conveyance of printing sheets in a printing-sheet conveying path; preventing means (20) for preventing the first sheet supplying roller (2) from approaching the second sheet supplying roller (4); and control means for activating the preventing means when the jamming detecting means detects the abnormal conveyance of the printing sheet in the printing-sheet conveying path. <IMAGE>