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To answer your question -
-Unplug the printer, while on and leave it unplugged for 15-30 minutes. Put the printer back in sometime, this action reset the error.
-Probably there is something inside the printer blocking or broken sensor along the paper path. In a position, you can't see it really doesn't take much paper to block the printer. Remove the toner cartridge, if present then gently and carefully give the printer a few upside-down shakes.
-Try removing all ink cartridges and reinstall them one at a time. Reposition the encoder strip of the print-head carriage. Maybe it's out of position and activates a paper sensor.
-Ensure the paper tray is not overfilled. Verify that the paper is not packed too tightly in the paper tray.
-If the printer still produces error message it indicates a hardware failure. Maybe a paper sensor flag either got stuck or broken. When a paper got a jammed check if the sensor moves freely.
We will need to reset your Printer to factory settings to clear out any backend system errors, please follow the steps in this link to get this done: https://www.tonerbuzz.com/blog/resetting-your-printer-to-factory-default-settings/
If you do not find anything wrong bring the printer to a repair center.
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