printing through com port

iam working with a printer connected to port1

this is not like regular printer.

it is like a current bill generator printer.

when we type data directly it has to print on paper

Mscomm1.Output = txtMessage.Text & vbCr

the code is working

the problem is iam not able to set the fonts

plzzzzzzzzzzz help me

thanks in advance

You need to send control codes to set the font on your printer (if it is capable of different fonts at all) - and what control code you send depends on what printer.