| 摘要 |
An over-printer comprises a label web support reel, an inking roller and a type drum. The type drum co-operates with a rotary platen which is freely rotatable on a shaft. The type drum and the platen have concentric cams which serve to index a web of labels through the printing station, the cam of the type drum being secured for rotation therewith. The inking roller is built up from a multiplicity of absorbent paper discs and the type drum has one arcuate recess to receive type rails and at least one cylindrical recess to receive an adjustable facet printing mechanism. Can be used for printing label and other webs.
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