The value for this command is also reflected in the “Backfeed” parameter on the
printer configuration label.
For ~JSN – the “Backfeed” parameter is listed as “Default”
For ~JSA – or 100 the “Backfeed” parameter is listed as “After”
For ~JSB – or 0 the “Backfeed” parameter is listed as “Before”
For ~JS10 – to 90 the “Backfeed” parameter is listed as the value
ZPL II Programming Guide Volume One: Command Reference for X.10
Comentarios a estos manuales