Epson Pro 9000 Printer Manual page 63

3-8 | Maintaining and Transporting the Printer
You can leave your roll paper in the printer when you replace ink
cartridges. The illustrations show paper removed for clarity only.
3. Push the lever down and let it "bounce" back up to open the ink
compartment cover.
4. Locate the slot containing the empty ink cartridge (corresponding to the
light). Pull the clamp forward.
Ink Out
3-8
INK COMPART. OPEN
appears on the display.