Affected Products:
Single-Function: C9235, CS921, CS923, CS927, MS911
Multifunction: CX920, CX921, CX922, CX923, CX924, XC9225, XC9235, XC9245, XC9255, XC9265, MX910, MX911, MX912, XM9145, XM9155, XM9165

Issue Description:
When a 3000 (high capacity) feeder is installed on a Lexmark MS911 or MX91x Multifunction printer series, the device may report a status of “Tray x Missing”, where x = 4 (if 2500-sheet option is installed) or x = 5 (if 2 x 500-sheet option is installed).
The printer unable to recognize tray 5; How to properly install center rail
Workaround
You can immediately remove the “Tray x Missing” status by printing any job that will pull paper from any of the trays available (not the high-capacity feeder). For instance, print the Device Statistics pages by navigating through: Menu > Reports > Device statistics.
The intervention message should clear after the printing this internal report. You may follow the suggested steps in the next section to prevent the message from reoccurring.
Solution:
You can disable (turn off) the ECO-Mode and Quiet Mode to keep the error from reoccurring. To do this, navigate through:
Menu > Settings > General Settings > Eco-mode > OFF –and–
Menu > Settings > General Settings > Quiet mode > OFF

Still Need Help?
Have the following available when calling Lexmark Technical Support;
LEGACY ID: TE691