Tag Archives: Epson WF-2661 Cartridge Error

How To Downgrade Firmware Epson WF-2661

Why Use Epson WF-2661 Firmware Key – Epson WF-2661 downgrade firmware key: this is required when NON-ORIGINAL ink cartridges are NOT recognized by the printer. This is because printers’ firmware has been updated from the Epson server to the newest firmware where not original ink cartridges are forbidden to be …

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