| 摘要 |
A securing device for a scanner is provided which comprises a scanner main body and a relay mechanism. The scanner main body houses an image scanning mechanism driven by a motor unit which is connected to a driving circuit. The relay mechanism is connected between the driving circuit and an external DC power source for supplying electrical power to the image scanning mechanism. The relay mechanism includes an electromagnetic coil and two switches. The electromagnetic coil is connected to the DC power source fed through an insertion hole formed on the scanner main body. The two switches are electrically connected to the driving circuit. The securing device automatically locks the image scanning mechanism when the DC power source does not send electrical power to the relay mechanism. The securing device is operated automatically to secure or unlock the image scanning mechanism of the scanner. Therefore, the securing device for a scanner overcomes such problems as those due to position deviation and motor idling.
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