Go to the Apple Menu in the Finder and select System Preferences.

Select Displays.

Select Color.

Select PJDisplay.

Open Photoshop in Macintosh HD>Applications>Adobe Photoshop CS5.  Open your Photo and make whatever edits need to be done before printing.

Go to File>Print.  To the upper left under Color Handling select Photoshop Manages Colors.

Select underneath Color Handling the Printer Profile drop-down menu.

There will be a long list of color and paper profiles.  All the PhotoJ ones will start with "PJ-" and then the paper type.  In this example there is only one, but there will be a list of several types as they are created by the PhotoJ TA staff.

And now you are ready to print!