Important Resetting the Ink Counter in Printer Properties dialog box:
When using Windows:
1. Open the Printer Properties dialog box and click the Maintenance Tab.
2. Click Ink Counter Reset.
3. Select the newly installed ink tank, then click OK.
When using a Macintosh:
1. Open the Page Setup dialog box.
2. Click Utilities and select Remaining Ink Level Setting.
3. Click Ink Counter Reset.
4. Select the newly installed ink tank, then click OK.