Epson AcuLaser C2000 Setup Manual page 17

5. Press the green button.
6. Turn the knob counterclockwise until it stops. The next empty
cartridge slot appears in the cartridge installment window.
Note:
If the knob cannot be moved, first check that the green button has
been pushed down. Do not turn the knob by force.
7. Install the other cartridges as described in steps 2 to 5 (skip
step 5 for the last cartridge).
Assembling the Printer
11