If you need to wipe all stored information and return the control panel to its original state:
If your printer displays an E11 error, you must use a resetter tool (Adjustment Program) to initialize the waste ink pad counter. faq-00007fc-et2850_l4260 | SPT_C11CJ63301 | Epson L4260
Use this method if your printer is frozen, not responding to commands, or has a minor queue jam. It does not delete your settings.