| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sheet transport device capable of reducing vibration radiation sounds of plural kinds of sheets, an image reading device and an image forming device.SOLUTION: A sheet guide 13 for forming a sheet transport path and guiding the transported sheet has plural incident holes 13d, and on an opposite side of a side contacting sheets on the sheet guide 13, a slider 19 having plural resonance tubes 19a respectively communicating with plural incident holes 13d on the sheet guide 13, is provided. The slider 19 is moved for changing opening areas of the plural incident holes 13d to the plural resonance tubes 19a.</p> |
