My Epson WF 3640 won't recognize ink cartridges

My wf3640 printer head was dirty and the cleaning the printer does in the setup menu did not fix the situation even after several attempts.


I then followed step by step the cleaning by hand process I saw online (using an ammonia/alcohol solution). Now the printer will not recognize the cartridges. I do use nonOEM cartridges but never had a problem before. But, after I cleaned the heads I turned on the printer (no ink cartridges were installed as per the instructions online) the printer stated that it couldn’t recognize the cartridges even though there were no cartridges installed. I then went through the steps to install the cartridges and still get the message. I even replaced the cartridges with new ones (still nonOEM) and still no recognition. I did dry the head as best I could with a lint free cloth before starting it up again.


Any help would be appreciated.

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