A remote printing system and method is provided. The coupling capacitor normally is connected first as a high pass filter to block any DC component, and then directly coupled as a direct or DC coupler. The guider further comprises: a first driving device for driving the lifting channel plate to move up and down; a reversing member hinged between the two lateral channels and used for switch between the two lateral channels; and a second driving device for driving the reversing member to rotate. Thereby, the reflection of the signal wave in the via hole connecting portion is reduced to decrease a transmission loss.