| 摘要 |
<p>A paper conveying apparatus (100, 200, 300, 400) includes an analog sound signal generator (141) for generating an analog sound signal corresponding to a sound generated by the paper during conveyance of the paper, a corrected signal generator (144, 444) for generating a signal acquiring the peak hold of the analog sound signal or a signal detecting the analog sound signal as a corrected signal, a digital converter (145) for sampling the corrected signal and converting the corrected signal to a digital format to generate a digital sound signal, and a sound jam detector (153) for determining whether a jam has occurred based on the digital sound signal.</p> |
