80 TroubleshootingToo much plain paper loaded. You can load approximately up to 150 sheets of 17 lb / 64 gsm plain paper (0.52inches / 13 mm in stack height). However, proper feeding of paper may not bepossible at this maximum capacity depending on the type of paper orenvironmental conditions (either very high or low temperature and humidity).In such cases, reduce the sheets of paper you load at a time to around half(around 0.2 inches / 5 mm in paper stack height).For details on loading paper, see “Loading Paper” on page 15.Foreign object in the Auto SheetFeeder or Cassette.Make sure that there are no foreign objects in the Auto Sheet Feeder orCassette.Envelopes not prepared or loadedproperly.When printing on envelopes, refer to “Envelopes” in the User’s Guide on-screenmanual, and prepare the envelopes before printing.Once you have prepared the envelopes, load them in the machine in portraitorientation. If the envelopes are placed in landscape orientation, they will notfeed properly.Inner Cover is not completely closed. Close the Inner Cover completely. Paper does not feed properly if the InnerCover is even slightly open.Cause Action