Open HP Utility
From the Finder, click Applications, click Utilities, and then click HP Utility.
If HP Utility is not included in the Utilities list, use the following procedure to open it:
At the computer, open the Apple menu, click the System Preferences menu, and then click
the Print & Fax icon (OS X v10.5 and 10.6) or the Print & Scan icon (OS X v10.7).
Select the product in the left side of the window.
Click the Options & Supplies button.
Click the Utility tab.
Click the Open Printer Utility button.