How to Reset the Mac's Printing System to Fix Printer Problems
If you have recently upgraded your version of OS X, or have installed the software for your wireless printer from the CD in the printer box, then you may have the wrong version of the HP software installed on your Mac. To properly install the right software : Open a Finder window and go to the Applications / Hewlett-Packard folder. >Open HP Uninstaller.>In the HP Uninstaller window, click Continue.>On the screen that appears, choose your printer.>Press and hold the control, option and command keys and click Uninstall and A dialog appears, asking if you are sure you want to uninstall all HP software.>Click Continue.>From the Apple menu, choose Software Update.>From the Apple menu choose System Preferences.>In the System Preferences window, click Print & Fax or Print & Scan or Printers & Scanners.>In the list of printers on the left side of the window, select the wireless printer in question and click the minus sign (-) at the bottom of th...