Epson Stylus Pro 4000 Reference Manual page 28

INK LEFT
You can see the amount of ink left in the each ink cartridge.
E ✽✽✽✽✽
E ✽✽✽✽
E ✽✽✽
E ✽✽
E ✽
nn%
MAINT TANK
You can see the free capacity of Maintenance tank.
E ✽✽✽✽✽
E ✽✽✽✽
E ✽✽✽
E ✽✽
E ✽
nn%
USAGE COUNT
You can see ink remaining in grams and paper consumption
amount in centimeters.
Note:
Values shown in USAGE COUNT are rough indications.
28
The Control Panel
F (100-81%)
F (80-61%)
F (60-41%)
F (40-21%)
F (20-11%)
(less than 10%)
F (100-81%)
F (80-61%)
F (60-41%)
F (40-21%)
F (20-11%)
(less than 10%)