This really isn't a question about Word, but I won't send you away empty-handed.
You can find the answer on page 122 of the printer's manual. If you don't have the manual any more, you can get it from
HP's web site. It says:
To check the ink levels from the HP Photosmart Software
1. In the HP Solution Center, click Settings, point to Print Settings, and then click Printer Toolbox.
NOTE: You can also open the Printer Toolbox from the Print Properties dialog
box. In the Print Properties dialog box, click the Features tab, and then click the
Printer Services button.
The Printer Toolbox appears.
2. Click the Estimated Ink Level tab.
The estimated ink levels for the ink cartridges appear.
