| 摘要 |
<p>PURPOSE:To improve the paper feeding performance by properly carrying out the blowing and suction of air stream to a recording paper sheet. CONSTITUTION:An air pressure sensor 9 such as a spreading type semiconductor pressure transducer utilizing the strain resistance principle is installed at an air feeding nozzle 11 for blowing an air stream to the upper part of a recording paper 1, and the pressure of the jetted air stream is detected, and the number of revolutions of a fan is increased/decreased to increase and lower the pressure of the jetted air stream according to the result of the comparison with the outside air pressure, and the optimum air stream which is blown to the recording paper 1 is generated, and the paper feeding operation is stabilized, and the paper feeding performance is improved.</p> |
