| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate paper changing work and jam disposal work. SOLUTION: A pinch roller 112 coming in contact with a capstan roller through a paper guide path 105 is held to a pinch roller holding part 5 rotatable in a direction of opening the paper guide path 105. Two sensor holding pieces 10a, 10b fitted with a reflecting type optical sensor and a transmission type optical sensor, opposed through the paper guide path 105 and mutually rotatable around a fulcrum 9 are slidably fitted to a frame 11 crossing the paper guide path 105, and to the pinch roller holding part 5, and one sensor holding piece 10a is fixed in its position by fixing means 13, 14. The paper guide path 105 is opened by rotating the pinch roller holding part 5, and two sensor holding pieces 10a, 10b become movable by releasing the fixed state of the sensor holding piece 10a fixed by the fixing means 13, 14 so as to be able to adjust the position of each optical sensor.</p> |
