Hello all,
Like 3 years ago i wrote a P.O.S using perl, the POS works
under apache, anyway, one of the things i have to do is to
print the invoice ( or how you call them ), using a serial
printer, this is easy doing something like

print COM1 "Some data\n";

The data just go as pure text to the printer by serail port
and thats it, but now i need to change the font size, but i
have no idea how to do it, i;ve search with no good results,
if anyone has an approach or know a module to do that it
will be great.

Thanx