| 摘要 |
<p>PURPOSE:To maintain paper feeding pressure constant by making the force to energize a transfer paper loaded on a middle plate to a paper feeding roller regulatable, even though the sort of the transfer paper loaded on the middle plate is changed so as to convert the weight applied to the middle plate. CONSTITUTION:A middle plate 8 is energized to a paper feeding roller 10 side by a rotatable middle plate pressure arm 9 abutting to the lower surface. The middle plate pressure arm 9 rotates around a shaft 4, and energizes the middle plate 8 by the elasticity of a spring 2 suspended between a spring arm 5 provided at the end of the shaft 4 and a cassette tub 1. Plural holes 5a, 5b, and 5c are formed in the spring arm 5, and by converting the hole to suspend the spring 2, the elasticity can be regulated to convert the energizing force. Consequently, even though the cost of the transfer paper is different and the weight is changed, the paper feeding pressure can be maintained constant by regulating the energizing force.</p> |
