ENUS6937Affected Products:
Single function: C2240, C2425, C2535, CS421, CS521, CS622
Multifunction: CX421, CX522, CX622, CX625, MC2640, MC2425, MC2535, XC2235, XC4143, XC4153, XC4240, XC6152, XC6153, XC8155, XC8160, and XC8163

Issue Description:
For CS/CX42x/52x/62x
The printer displays a "Load tray 1" message even when media is properly loaded in the tray.
A related failure mode will be persistent 200.16 paper jams accompanied by 200.91 jams.
Note: The 200.91 jams may appear if a 200.16 paper jam is not correctly cleared.

Solution
Method 1:
Fan
, flex and straighten the media before loading it to the tray.
Method 2:
Clean the pick tires with isopropyl alcohol. The tires may be slipping against the media.
Note: Issues with the pick tires slipping may also be caused by the printer's storage conditions - particularly when stored without use for prolonged periods of time, or when stored in hotter environments.

Still Need Help?
Have the following available when calling
Lexmark Technical Support;
Printer model(s)
Printer serial number
LEGACY ID: SO8781