Q: i cant printing

Which model printer are you using?  Have you checked w/the manufacturer to see if you need to update your drivers?  Contacted their tech support department.  If not, why not?

Please detail ALL you have done so far in the way of troubleshooting?   Need this info to avoid the been there done that scenarios.

http://support.apple.com/kb/HT3669 Printer and scanner software available for download

What to do when you can't print