How to print special caracters ?

[yp56]

Hello,
I have to print some special caracters like :
é è à ê etc...
and when I send such caracters into the printer (HP5100) or into ghostscript it prints other strange caracters.
How can I print those caracters ?

thanks

 

[yp56]

I found this ps script which solve my problem since it changes my encoding to latin1 :

http://swtch.com/usr/local/plan9/postscript/prologues/Latin1.enc

I putthis script at the beginning of mine and it's good