In most of the cases, [link|https://askprob.com/epson-printer-displays-paper-jam-error-but-not-paper-stuck-why/|Epson printer says paper jam while there is no paper|new_window=true] because of the few reasons.
# Some objects are available in the machine.
# Roller is unable to rotate properly.
So you need to clean the roller and then retry to access the printer. It should be working fine now. in case, if the error still continues, you need to factory reset the printer.