Hi I get this 250.07 paper jam check mp feeder on Lexmark t644

250 prjm is caused by it not picking paper from mp feeder bottom door of two doors try loading paper on bottom door and pressing go should pick paper up looks like what the tray is not set to a4 check its on a4 on display this is a common problem as mp feeder is set to a4 so if it does not see tray 1 as a4 will go th mp feeder and as no paper will give 250 prjm

Defaulted the printer.
Check the cable form mp feeder connecto main board.
Check paper flag in placed the sensor.
Timming of mp feeder.
it hard happen to the maun board...

Please try this

1. Turn off the printer.
2. Remove any paper trays. Inspect them for wrinkled or damaged paper.
3. Also open the back cover of the printer if this model has one.
4. Open any other doors that give access to the printer's paper path and to the toner or ink cartridge.
5. If necessary, remove the toner or ink cartridge. Place it away from light/ sun light to avoid damaging it.
6. If you find a piece of jammed paper, remove it by holding it with both hands and pulling firmly. The goal is to keep the paper from tearing. If several pieces are jammed together, try pulling out the middle piece first to loosen the jam.
7. If the paper does tear, try rotating the roller gears manually to free the paper. Don't force anything, though. Do this step especially if the jam message comes up repeatedly without any obvious paper jam, there may be a small tear of paper inside.
8. Ones the printer is free of paper Replace the toner or ink cartridge and paper trays, close any doors you opened and turn the printer back on.
9. If the printer paper jam message still appears, then there is still some paper in the printer. Reinspect the paper path.
10. see alternative if the problem is still not solved.