sending commands to parallel printer through python

[hari]

Hi all,
 I need to automate printer command testing, prinetr supports
parallel/
serial/USB.How can i send the commands from python to printer.

I have got pyparallel, as am new to python,  no idea how to work on
it.
Please give some tips,The comamnd to be sent to the printer is hex
data "1B 40".please give a example,it will be grateful.


Thank you. postedthe same in it.comp.lang.python


Regards
-Hari