- 95 -6. Troubleshooting4 Close the front cover (3).5 If loading paper on MP tray, lift the paper set cover (1) and set the paper withthe print side face up.6 Lower the paper set cover (1).Task is complete.A paper jam has occurred while feeding paper from a tray.• If paper jams occur frequently, clean the paper feed rollers. For details, refer to "Cleaning".This procedure uses Tray 1 as an example.1 Gently pull out from the machine the paper cassette (1) for which an error isindicated.2 Remove the jammed paper.• If paper is not jammed, feeding paper may fail. Reduce the number of sheets of paper loaded on the papercassette. Make sure that the paper stoppers are set in the right position.Error Code "391", "392", "393", "394", "632", "633", "634"