| 摘要 |
PURPOSE:To ensure the side erasion with manual feed of paper by providing a paper size detector which delivers the fence position data in response to the shift position of the fence of a manual paper feed mechanism. CONSTITUTION:A side discrimination code 22 consisting of four magnets, for example, is attached to the outer frame of a cassette 21 at a cassette paper feed part in order to discriminate the size of the paper to be fed. At the same time, a size detecting part 23 consisting of four reed switches, for example, is provided within a copying machine in response to the code 22. Then the size of the present paper is discriminated from the present and preceding data of such a paper size detector, and an erasing light source can be lit up in response to the present paper size. Thus it is possible to perform the side erasion with manual feed of paper by means of a comparatively simple device. |
