| 摘要 |
<p>PURPOSE: To keep the paper feeding pressure nearly constant independently of the difference of the left quantity or the size of the sheet, and carry out the stable separative paper feed, as for a cassette having a specially large capacity. CONSTITUTION: As for a paper feeding pressure correcting means, a weight 17 is installed so as to be shiftable in the paper feeding direction on the undersurface of a middle plate 12b in a paper feeding cassette 1, and the weight 17 is automatically shifted according to the swing position of the middle plate 12b and the shiftable position of a side regulating plate for regulating the side of a sheet P. Therefore, according to the left quantity or the size of the sheet P, the turning moment of the middle plate 12b is varied, and the paper feeding pressure as the contact pressure to the paper feeding roller 3 of the sheet P due to a pressurizing spring 10 can be kept nearly constant automatically.</p> |
