Compatible printers for the Brother LC31BK are Brother MFC-3220C 5-in-1 Color Multi-Function Center, Brother MFC-3320CN 6-in-1 Network-Ready Color Multi-Function Center, Brother MFC-3420C Color Flatbed Multi-Function Center,Brother MFC-3820CN 6-in-1 Color Flatbed Multi-Function Center.
To refill the Brother LC31BK ink cartridge you can take it to a store that performs Instore refills. Some walgreens offer this service in the photolab department. You can also purchase an inkjet cartridge refill kit online or in a store, and refill the cartidge yourself.
When replacing the Brother LC31BK ink cartridge, you should replace the color cartridges if they are low. If they are at a high enough level it is safe to replace them at a point when they need replacing. anonymous@oola.com