kyocera 6021 gives a paper jam error when there is no jam

[RollandV]

My Kyocera 6021 gives a paper jam error (Paper Jam-MP Tray) but there appears to be no paper blocking that I can see.

 

[basroil]

Two possible issues:
1) There is a paper jam, which you just can't see. Maybe a torn piece of paper or for tray type printers the tray loader.
2) The error is actually wrong and it's a software or hardware failure that just looks like a paper jam.

Try checking again to see if it's a jam or not