Epson Stylus Pro 7600 Reference Manual page 161

To access the Utility dialog box, see "Accessing the Printer
Software".
Note:
Installed ink cartridge information is not available.
The EPSON StatusMonitor informs you of the amount of ink
remaining as of the time the StatusMonitor was opened. To
update ink-level information, click the Update button.
Besides, the Cartridge Option information is displayed on the
screen. You can check the set of black ink cartridges installed in
the printer.
160