| 摘要 |
<p>PURPOSE:To obtain the circuit protecting device without the necessity to provide the micro switch by specifying the terminal contacting sequence when the cartridge substrate is inserted to the connector at the main body side. CONSTITUTION:When a cartridge substrate 11 is inserted into a main body connector 10, first, a protecting signal terminal 15 and an earth terminal 17 are contacted to terminals 20 and 22. The terminals 20 and 22 are electrically connected, and therefore, the terminal 15 comes to be the grounding electric potential. For such a reason, an electric power source interrupting part 12 comes to be off and the main body electric power source output comes to be off. Further, when the substrate 11 is inserted, a protecting signal terminal 16 is contacted to a terminal 21. Since terminals 21 and 22 are electrically connected, the terminal 16 is grounded. For such a reason, the electric power source interrupting part 12 comes to be on and the voltage of an electric power source input terminal 13 is outputted to the output terminal. Thus, the circuit protecting device without the necessity to provide the micro switch can be obtained.</p> |
