This may happen because:
1. The user is printing an online web form.
Solution: Instruct the user to save the file before printing (right-click on the page and save it to the desktop). if that doesn't work, you can take a screen shot of the form (command+shift+4 to select the area -or- command+shift+4 then hit the space bar to capture the whole window) and print the screen shot.
2. The user is printing their schedule from OPUS using Safari.
Solution: Instruct the user to switch to another browser.​