Canon LBP6780x Manual page 878

5
Close the sub-output tray.
The message disappears, and the printer is ready to print.
If a message does not disappear
Paper may be jammed in another area. Check another area also and remove the paper.
(1) "Clearing Paper Jams (Multi-purpose
(2) "Clearing Paper Jams (Paper
(3) "Clearing Paper Jams (Duplex
(4) "Clearing Paper Jams (Inside the Output Area)"
(5) "Clearing Paper Jams (Inside the Front
If the message does not disappear even after removing the paper, check that the front cover is closed firmly.
Tray)"
Drawer)"
Unit)"
Cover)"