Patent ID: 6075664
Filing Date: 2000-06-13
Classification: G11B

Abstract:
A write current setting method for setting a write current to be an optimum write current, said write current being supplied to a recording head when information is recorded on a recording medium, said method comprising the steps of:a) measuring first margin characteristics which are used for obtaining a lower limit value of the write current to be supplied to said recording head;b) measuring second margin characteristics which are used for obtaining an upper limit value of the write current to be supplied to said recording head;c) setting, as the lower limit value of the write current, a write current value for which a margin has a predetermined value in said first margin characteristics measured in said step a);d) setting, as the upper limit value of the write current, a write current value for which a margin has a predetermined value in said second margin characteristics measured in said step b); ande) setting, as the optimum write current, a write current which has a middle value between the lower limit value of the write current set in said step c) and the upper limit value of the write current set in said step d).