This post is for resetting the printer Deskjet F4480, which does not read the cartridges after refilling. The shutdown button and stays blinking and the light that indicates the cartridges too. This requires a little patience and that the printer has paper.
Turn the printer until everything is normal, that is to say untill it finishes cleaning the cartridges and put them in their place, of course the light will continue flashing.
Press the power button and hold and simultaneously press the cancel button which is a little further down this is the red button that has a cross. (This you have to hold for about 30 seconds, the printer will be in the same condition it was when new after making this process.)
Note: The printer will perform a print test page from its internal system, in this case it will not be necessary to connect the printer to the computer.
Now we will print from the computer. Note that the buttons will keep flashing, what will stop blinking is the ink level. Of course this is not necessary for us because our cartridges will print vey well.
Note that this is a post made on the basis of detailed information obtained on our printer repair shop, in case that you have another solution for this problem discuss it or send it to us for publication.