| 摘要 |
PURPOSE:To obtain an automatic retrieval use mark recording device which does not cause a failure due to a user's work mistake by controlling an electronic circuit by two detecting signals for presence or absence of an original of an original feed paper part, and a separated one sheet feed movement of the original. CONSTITUTION:A sheet original P fed to supplying rollers 1, 1' is illuminated by a light source 5 at a photographing position of glass plates 3, 3', and photographed to a microfilm F by a slit 13, a shutter 7 and a lens 8. By a signal from original detecting photoelectric elements 4, 4', the film F is fed by synchronizing with the original by feed rollers 12, 12'. A marking unit 15 for inserting a mark is, for instance, a light emitting diode LED. |
