Lexmark E250DN - Govt Laser 30PPM Special Build Mono Taa Service Manual page 130

4512-220, -230
Paper feed rollers (autocompensator tires) removal
1.
Remove Tray 1.
2.
Open or lower the duplex door.
3.
Lower the ACM.
4.
Remove the rubber paper feed rollers.
Note: Remove the tire from the hub. Do not attempt to remove the hub.
5.
Pinch the new rubber roller into a tight radius to determine the orientation of the tire relative to the hub.
Notice the direction of the points on the edge. Those points should be directed in the paper feed direction
as shown.
6.
Make sure the new paper feed rollers are captured between the rims of the plastic hub.
7.
If the orientation is questionable, run Print Quality sheets, and check for skew.
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Lexmark™ E250d and E250dn