Epson LQ 630S Reference Manual page 22

To tear off and eject labels
When using continuous forms, always tear off and eject labels as
described below.
Caution:
c
Never feed labels backward using the Load/Eject button. Labels
can easily peel off their backing and jam the printer.
1. At the back of your printer, tear off the last label form that has
entered the printer. See the illustration below.
2. Press the LF/FF button to eject the last label form forward.
Caution:
c
Do not leave labels loaded in the printer between print jobs; they
tend to curl and may come off their backing sheet and jam the
printer when you resume printing.
16
Paper Handling