| 摘要 |
The invention relates to a printer or other equivalent feed-out device for printing out characters on a document fed in on its paper feed 5, comprising a member, connected to the paper feed, for observing the feed-in of the document. To enable the document feed-in to be monitored even though it is executed at an arbitrary point on the paper feed, the top and bottom part 1,2 of the paper feed consist, at least in terms of their surface parts 3,4, of at least partially electrically conductive material, the top and bottom parts together forming a capacitor and the member for observing the document feed-in comprising an electrical circuit in which the capacitor formed by the paper feed constitutes a part and which responds to a change in the capacity value of this capacitor when the document is fed in on the paper feed 5. <IMAGE>
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