Image processing apparatus whose main body is electrically connected to expansion device, image processing method and non-transitory recording medium
摘要
說明書
More specifically, in the present embodiment, a determination threshold and a voltage of the power input terminal 42 in each expansion device 2 are compared in the detection portion 36 during a test period during which the output of the main body power supply portion 18 is stopped by the fluctuation generating portion 31. When the voltage of the power input terminal 42 is equal to or less than the determination threshold during the test period, the connection identifying portion 32 determines that the fluctuation that correlates with the fluctuation of the output power of the main body power supply portion 18 appears in the supply power of the expansion device 2, and identifies that the connection destination of such expansion device 2 is the main body power supply portion 18. The determination threshold is, as one example, ? of a steady state (24V), that is, 8V. Here, in the present embodiment, as described above, the voltage of the power input terminal 42 is divided into ? of the voltage and inputted into the expansion control portion 22 (micro controller). Therefore, the detection portion 36 compares the divided voltage with the threshold value of 1V, thereby comparing with the determination threshold.
