Connection checking system, printer device, method of checking connected state, connection checking program, and recording medium storing connection checking program

A connection checking system for checking a connected state of a connecting member for connecting an electronic device and a unit, comprising:

• a connecting member which includes a power supply cable for supplying power supply voltage from said electronic device to said unit, a first signal cable for sending a control signal as outputted from a first signal terminal of said electronic device to said unit, and a ground cable;
• and
• when said connecting member is connected to said unit and the electronic device, the first signal cable and the ground cable are connected via a fifth resistance in said unit, and said first signal cable and said power supply cable are connected via a sixth resistance in said electronic device;
• and
• a control section makes a determination on the connected state of said connecting member based on a voltage applied to said first signal terminal.

A printer device provided with a connection checking system for checking a connected state of a connecting member which connects an electronic device and a unit,

• wherein said connection checking system comprises:
• a connecting member which includes a power supply cable for supplying a power supply voltage from an electronic device to a unit, and a first signal cable for sending a control signal as outputted from a first signal terminal of said electronic device to said unit;
• and
• a control section which makes a determination on the connected state of said connecting member,
• wherein when said connecting member is connected to said unit, said first signal cable is connected to said power supply cable via a first resistance in said unit;
• and
• said control section makes a determination on the connected state of said connecting member based on a voltage applied to said first signal terminal.

A printer device provided with a connection checking system for checking a connected state of a connecting member which connects an electronic device and a unit,

• wherein said connection checking system comprises:
• a connecting member which includes a power supply cable for supplying power supply voltage from said electronic device to said unit, a first signal cable for sending a control signal as outputted from a first signal terminal of said electronic device to said unit, and a ground cable;
• and
• when said connecting member is connected to said unit and the electronic device, the first signal cable and the ground cable are connected via a fifth resistance in said unit, and said first signal cable and said power supply cable are connected via a sixth resistance in said electronic device;
• and
• said control section makes a determination on the connected state of said connecting member based on a voltage applied to said first signal terminal.

A method of checking a connected state of a connecting member which connects an electronic device and a unit, wherein:

• a connecting member includes a power supply cable for supplying a power supply voltage from an electronic device to a unit, and a first signal cable for sending a control signal as outputted from a first signal terminal of said electronic device to said unit;
• and
• when said connecting member is connected to said unit, said first signal cable is connected to said power supply cable via a first resistance in said unit,
• said method comprising the step of determining a connected state of said connecting member based on a voltage value applied to said first signal terminal.

A connection checking program which makes a computer determine a connected state of a connecting member for connecting an electronic device and a unit, wherein:

• a connecting member includes a power supply cable for supplying a power supply voltage from an electronic device to a unit, and a first signal cable for sending a control signal as outputted from a first signal terminal of said electronic device to said unit;
• and
• when said connecting member is connected to said unit, said first signal cable is connected to said power supply cable via a first resistance in said unit,
• said program makes said computer execute the step of determining a connected state of said connecting member based on a voltage value applied to said first signal terminal.

A computer readable recording medium, storing a connection checking program which makes a computer determine a connected state of a connecting member for connecting an electronic device and a unit, wherein:

• a connecting member includes a power supply cable for supplying a power supply voltage from an electronic device to a unit, and a first signal cable for sending a control signal as outputted from a first signal terminal of said electronic device to said unit;
• and
• when said connecting member is connected to said unit, said first signal cable is connected to said power supply cable via a first resistance in said unit,
• said program makes said computer execute the step of determining a connected state of said connecting member based on a voltage value applied to said first signal terminal.