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Manual cleanings are, in my opinion, somewhat inadvisable. Please tell me, what ink supplies were you using before they seemed necessary and were done?
That error signifies that a connection is bad, or the CR motor is not responding to signals.
That's a service error all right. But check the connections on the connectors anywhere near your manual cleaning, before giving up and sending it to Epson Repair.
Do you need any further help or advice with this issue? please let me know. Thanks.