| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve portability while including accessories and to prevent an unwanted current from flowing into a stop side in one-side power supplying state on the host side and the device side. SOLUTION: A battery pack 14 is freely attachably and detachably provided at a drive main body 12 and at the time of carriage, an interface card 18 and a connector cable 20 ate packaged by freely attachably and detachably supporting and fixing them through a holder member 70 onto the drive main body 12. Power is supplied from a host device 24 through the interface card 18 to a control IC part 278 of a device and only when both the power supply from the host device 24 and the power supply from an external power source unit 276 are detected, active state is provided by supplying power from the external power source unit 276 to a device circuit 280.</p> |
