For a 5mm margin is 275px

• Change in the %systemroot%\system32\spool\drivers\w32x86\3\DW5TM.gpd the following values For Letter and Legal size Original

Legal
*PrintableArea: PAIR(10200, 16800)
*PrintableOrigin: PAIR(0, 0)


Letter
*PrintableArea: PAIR(10200, 13200)
*PrintableOrigin: PAIR(0, 0)


Modified
Legal
*PrintableArea: PAIR(9925, 16525)
*PrintableOrigin: PAIR(275, 275)


Letter
*PrintableArea: PAIR(9925, 12925)
*PrintableOrigin: PAIR(275, 275)


• Save Delete the file: %systemroot%\system32\spool\drivers\w32x86\3\DW5TM.bud
• Restart the print spooler