Esc p 0 Ctrl-y z
which translates to
<0 #48>
(above can be cut and paste into prefs)
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OLD:
The following opening codes will pop the paralled drawer that works with samsung printers.
esc p 4 8
27 112 52 56
or
esc p 0 esc p 0
27 112 48 27 112 48
or
esc p 0 7 y
27 112 48 55 121