Specify the distance (mm) between the top edge of the printable area to the area where printing starts, within the range 0-100 mm in increments of 1 mm.
Note that there may be some discrepancy in the actual printing.
Printable area
Top Margin (topspace)
If the "topspace" printing option is specified, the actual margin is calculated by adding this value and the value specified for "topspace".