Mfc j691dw unable to init AF what does it mean

SOURCE: MFC-210C displaying "Unable to Print"

menu * 2864
para purgar todos estos errores

SOURCE: message unable to print 50

Machine Error 50 either means that there is a loose object inside the machine (usually piece of paper), or that there is a mechanical error which would need you to have the machine sent to service.

SOURCE: Brother MFC-9420CN Paper Jam Error message w/ loud grinding noiz

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.
    

SOURCE: No Paper Message- when the tray if full

No Paper Message- when the tray if full

SOURCE: My MFC8460N Brother won't print. It makes this

Gears on the tray is broken, or the gears that lift the tray. (thus the clicking noise). And the no paper is due to the actuators underneath not being activated because of the non lift.