Magnetic recording and reproduction system having opposed magnetic heads

A method for playback of a magnetic disk, wherein a first, lower magnetic head including a control portion is positioned at a predetermined position with respect to a free rotary surface plane of the magnetic disk, and a second, upper magnetic head including a control portion is disposed opposing said first, lower magnetic head across the magnetic disk, and further wherein a negative pressure occurring at the control portion of said first, lower magnetic head is greater than a negative pressure occurring at the control portion of said second, upper magnetic head during rotation of the magnetic disk, the method comprising the steps of:

• (a) attracting and contacting the magnetic disk on said first, lower magnetic head by the negative pressure occurring between the magnetic disk and the control portion of said first, lower magnetic head while rotating the magnetic disk;
• (b) supporting said second, upper magnetic head by a gimbal spring, said gimbal spring comprising an elastic member which deforms toward the magnetic disk so that said second, upper magnetic head contacts the magnetic disk while preventing said second, upper magnetic head from crushing the first, lower magnetic head during playback of the magnetic disk;
• and
• (c) protruding said second, upper magnetic head to the predetermined position by virtue of the deformation of said gimbal spring in response to the negative pressure occurring between the magnetic disk and the control portion of said second, upper magnetic head during rotation of the magnetic disk, so as to contact the magnetic disk.