Lexmark C912 User Reference Manual page 131

Check Area E
This message indicates a jam in the top, middle, or bottom optional drawer paper path area.
Note: If you have a high capacity feeder, pull the feeder away from the printer.
1
Open the jam access door on the top optional drawer.
2
Remove the jam.
3
Close the jam access door.
4
Repeat these steps for jams in the middle and bottom drawers.
5
Press Go. If the paper jam message continues, check and clear all paper from the paper
path.
200 Paper Jam <x> Pages Jammed (Check Areas A-F, T1-5, MPF)
Clearing paper jams
126