| 摘要 |
PROBLEM TO BE SOLVED: To provide a card reader system which enables setting of charge by channels, facilitates input operation, and exerts no adverse influence of input to an input part on other components. SOLUTION: This system is equipped with a card reader 38 having the input part 27 equipped with channel setting keys, a storage part 17 which stores charging rates by the channels, a timer part 30, a driving part 34, and a control part 18, and external equipment 39 having a light emitting diode 35 which is connected to the driving part 34, a photodetection part 40, and a load circuit 44 which is energized with the output of the photodetection part 40. |
