| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate position adjusting work of a transmission type optical sensor and a reflecting type optical sensor. SOLUTION: A sensor holding part 6 holding a transmission type optical sensor and a reflecting type optical sensor is slidably fitted to a frame 11 crossing a paper guide path 105, and a friction member 14 is brought into pressure contact with the frame 11 by the resilience of an elastic member 13 to fix the sensor holding part 6 stationarily to the frame 11. The positions of the reflecting type optical sensor and transmission type optical sensor can therefore by adjusted with simple operation of gripping a grip part 15 provided at the elastic member 13 and sliding the sensor holding part 6 while spacing the friction member 14 from the frame 11 so that the operability of the optical sensors is improved.</p> |
