| 摘要 |
Device for detecting the absence of paper or the approach of the end of the paper web of a printer, characterised in that the paper web 1 has on the back a code in the form of at least one continuous or discontinuous track 6, 7, and in that a code detector 10 is provided for stopping the printer when the detected code indicates an absence of paper or the approach of the end of the paper web in front of the printer 5. <IMAGE>
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