Periodically your Epson SureColor P5000 may display the following warning on the printer panel:
Perform Powerful Cleaning (All Nozzles) from Administrator Menu
In order to clear the message, the powerful clean must be performed via the Administrator menu, and not the normal maintenance menu.
Menu (right arrow) > Administrator Menu > Perform Powerful Cleaning
Performing the powerful cleaning via the Administrator Menu is the only way to clear the warning.
The cartridges need to be at least 50% full to run a heavy cleaning. You may need to replace a low cartridge to run the cleaning cycle. After cleaning, you can reinsert the previous cartridge.
Note: Outside of this warning message, run a heavy or powerful cleaning cycle only if three normal cleaning cycles are not sufficient to clear the nozzles. The heavy and powerful cleaning cycles use a large quantity of ink and should only be used if necessary. After running a heavy or powerful cleaning cycle, the printer runs normal cleaning cycles periodically even if the Auto Cleaning setting is off.