Q: my mac won't let me print.

Hello mariosofia,

Thank you for contacting Apple Support Communities.

This article should be useful in sorting out your issue. It sounds like the most useful step would be:

• Delete the affected printer, then add the printer again.

But I would go through the prior steps also.

Troubleshooting printer issues in OS X

http://support.apple.com/kb/TS3147

Regards,

Jeff D.