Patent ID: 6757123
Filing Date: 2004-06-29
Classification: G11B

Abstract:
An apparatus for cleaning a rotary magneto-resistive head, said apparatus comprising:a cleaning roller; an actuator arm, supporting said cleaning roller, to position said cleaning roller in and out of contact with at least said rotary magneto-resistive head; a cam, coupled with said actuator arm to provide a linear motion for said cleaning roller; a mode motor, coupled to said cam to provide motion; a read amplifier electrically coupled with said magneto-resistive head to sense a presence of thermal noise in an output of said magneto-resistive head; an error detector, electrically coupled with said read amplifier to sense an error rate; a control device, coupled to said error detector, said read amplifier and said mode motor; wherein said control device controls a position of said cleaning roller in contact with said rotary magneto-resistive head by action of said actuator arm and said cam and under power of said mode motor.