disallow printing

I try to use the file /etc/lp/printers/myprinter/users.deny to disable
printing rights to some users, but no success.

How can I do to deny printing to some users.

Thanks,

[demime 1.01b removed an attachment of type text/x-vcard which had a name of rachid.boukhari.vcf]

[287 byte] By [CodeProf.com] at [2007-12-25 1:50:00]