Patent ID: 8164856

Claim:
A magnetic tape apparatus, comprising: a feeding unit for feeding a magnetic tape; a winding unit for winding up the magnetic tape; a magnetic head arranged on the downstream side of the feeding unit and on the upstream side of the winding unit in a running path from the feeding unit to the winding unit, the magnetic tape contacting the magnetic head when the tape runs; a fixed guide unit arranged on at least one of the upstream side and the downstream side of the magnetic head in a running direction of the magnetic tape running on the running path so as to be adjacent to the magnetic head, and contacting the magnetic tape to guide the magnetic tape into the running path; and a regulating unit for regulating the running of the magnetic tape in the width direction of the tape, the regulating unit being fitted to the fixed guide unit, characterized in that, a contacting face of the fixed guide unit, which contacts the magnetic tape, is equipped with an air passage which is a space for excluding entrained air lying between the running magnetic tape and the contacting face so as to generate a negative pressure.