Recording head position regulation device and traveling record head

The present invention provides a recording head position regulation device capable of regulating the position of the recording head in the length direction with high precision and easy operation. Therecording head position regulation device comprises: a recording head fixing section for fixedly supporting a recording head section; a linear-motion mechanism to which the recording head fixing section has been attached; and a bracket to which the linear-motion mechanism has been attached, the bracket has a tapered pin attached to the bracket and a plunger attached to the bracket, the tapered pinand the plunger facing each other, the tapered pin has its tapered part brought into contact with a first side end of the recording head fixing section in the X-axis direction, the plunger biases a second side end of the recording head fixing section in the X-axis direction toward the tapered pin, and moving up and down the tapered pin causes the recording head fixing section to linearly move inthe X-axis direction so tha