What is the most logical next event?

How to replace an ink cartridge in an epson workforce 545
Power on your epson workforce 545 printer.
Wait for the lcd screen of the printer to inform you that an ink cartridge needs to be replaced.
If you want to replace an ink cartridge before its ink has been fully used up, press " setup, " followed by " maintenance, " then select " ink cartridge replacement.
" Press " ok, " then select " replace now. " Lift up the scanning unit of the printer.