Lexmark CS310
Turn off the printer.
Unplug the power cord from the electrical outlet.
Remove the extra trays.
Connect the power cord to the electrical outlet.
Turn the printer back on.
A 'Too many events waiting' Message Is Displayed on a Lexmark CS310, CS410, CS510, CX310, CX410, and CX510 Printer
'Check Package' or 'Remove Internal Packaging' Message on a Lexmark CS310, CS410, CS510, CX310, CX410, and CX510 Printer