Electronic component mounting machine

An electronic component mounting machine comprising:

• a mounting head that mounts electronic components onto a circuit board;
• a tape feeder which feeds a first tape material that accommodates a plurality of electronic components to the mounting head;
• a counting device which counts the number of electronic components remaining in the first tape material by subtracting the number of consumed electronic components which corresponds to an operating amount of the electronic component mounting machine from an initial value of the number of the electronic components accommodated in the first tape material;
• a detection device which detects a splice portion that joins a starting end of a second tape material to a tail end of the first tape material;
• and
• a determining device which determines whether or not a count value of the number of electronic components remaining in the first tape material obtained by the counting device when the detection device detects the splice portion is within a normal range, the normal range being predetermined,
• wherein the determining device determines that the detection device has malfunctioned when the count value obtained by the counting device when the detection device detects the splice portion is out of the normal range.