Before you click that elusive link, run through this checklist:

Yes and no. You cannot get the official service program for free legally because of the license key. However, you have three options to achieve the same result for your EP-804A.

Assuming you have found a working, fixed version of the AdjProg.exe for the EP-804A, here is how to fix your printer.

Warning: Do not touch any setting except the Waste Ink Pad counter unless you are an expert. Changing the wrong EEPROM value can destroy your printer.

The error should vanish. Your EP-804A is now ready to print again.

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