The PT-2430PC (0x04f9:0x202d) was flagged FLAG_NONE, so --precut was
silently a no-op on this model: printing a --chain'd batch of labels
produced one continuous strip with no cut between individual labels.
This printer shares the same head width and DPI (128px @ 180dpi) as
the PT-2700 (0x04f9:0x201f), which already has FLAG_HAS_PRECUT set.
That similarity prompted testing precut on real PT-2430PC hardware:
sending --chain on the first label and --precut on the second
produces a real cut between the two labels, with no errors and no
adverse effect on the surrounding print.
Tested on: PT-2430PC, USB ID 04f9:202d, tape: 12mm laminated.
Only the non-PLite entry is changed; the "(PLite Mode)" variant
(0x04f9:0x2031) was not tested and is left as FLAG_PLITE.