Q: can't add printer

Maybe this article will help.  I could not find your printer on the "supported" list, so you may have to visit HP's website for driver software.  http://support.apple.com/kb/HT4670

Hello Rich,

Thanks for the post. If you have not resolved this already, check this link for the drivers page for your C4795.  Good Luck!

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=mp-70896-3 &cc=us&dlc=en&lc=en&os=219&product=3940574&sw_lang=

I work for HP but my posts and replies are my own....Thank you!