Epson SureColor T7770D Series User Manual page 326

Note: The maintenance box needs enough capacity to discharge the ink. If the remaining capacity is
low, replace the maintenance box first.
1. Turn on the printer.
2. Remove all of the paper from the printer.
3. Select > Maintenance > Keeping Preparation > Start.
The ink begins to discharge. The printer turns off automatically when the discharge process is
complete.
Caution: Do not open any covers or turn off the printer while ink is discharging.
Parent topic: Moving or Transporting Your Product
Related tasks
Removing Roll 1
Removing Roll 2
Checking Ink Cartridge and Maintenance Box Status on the LCD Screen
326