SIZE ERROR DX
When the SIZE ERROR DX message appears, the following LED indication is shown on the control panel. The Error LED is flashing.
Set the correct paper that you want to use, or load the same size paper that you selected in the current driver setting. Press the Go button. The paper size you can use for automatic 2-sided(duplex) printing is A4, Letter, Legal or Folio.
Legal and Folio size paper is not available in some regions.