Lexmark series x5100 - Manual (Page 64)

60
2 Lower the scanner unit to close it.
3 Press Power to turn the All-In-One on, and then send your
document to print.
Cover Open message
The Cover open message appears when the scanner unit is open.
Note: The operator panel buttons do not function while the
scanner unit is open.
Lower the scanner unit.
The message disappears, and the operator panel buttons function.