How to install cartriage - Brother IntelliFAX 4750 Plain Paper Laser Fax

Maybe are empty. You can manually check them. Take them out and look at them from the side that goes in the machine. There is a transparent plastic which if you are holding the crtridge exactly as it goes in the machine, it should have liquid ink inside. If its empty at that specific position is empty

plug out your cartriage and install it correctly see the number on printer it can mention that which one cartriage is install here. you can understand it easely

Change your cartriage i thing your cartriage is short change cartriage on by one then you can find which cartriage is short replace it

make sure cartridge is fully installed and sitting properly. Sounds like gears are not meshing so check gears with cartridge out (bottom of copier) and see if they are damaged. If so, copier is junk.It might not be out of toner just can't read it properly as it is not seated proper.

Brother Message: No Cartridge

you slide the cover open and then hit the eject button next to the cartriage, the cartriage pops up and then you remove and install the cds you want the unit is in the trunk.

delete and re install!
could be hardware problem
unplugging for 2 m;intues give the components time to cool off and readjust ie..hardware board problem.

I was having the same problem and just posted it, went back to my printer, put the old cartriage back in and printed, I am taking the refilled cartriage back to walgreens where I had it filled and buying a new/hp cartriage to install.

Try to clean inside the printer especially the rollers may some time small piece left or remain ..

You must have 2 good cartridge installed.