| 摘要 |
PURPOSE:To automatically form a copy of proper guality by forming a semiautomatic feeder, which is operative to feed sheets of originals to an exposure section, with a plurality of inlets corresponding to the image gualities and by detecting and selecting the originals to the image gualities and by detecting and selecting the originals to the inlets to automatically change the exposure, bias voltage or the like. CONSTITUTION:A contact glass 3 is eguipped with partitions 8 and 9 at the original inlet sides of feed rollers 1 and 2, which are made operative to feed the sheets of originals in a clamped manner, so as to form insets 10 to 12. The partitions 10 and 11 are eguipped with microswitchs 13 and 14, which are operated upon possage of the originals and which are connected an exposure conrol circuit and/or a bias voltage adjusting circuit. If one of the two switches is operated, the adjustment is carried out accordingly. An operator judges the originals so that the inserts the reference originals into the inlet 12, the originals of high density into the inlet 10, and the originals of low density into the inlet 11. |
