My trusty brother fax ran out of toner at a very bad time this morning and I didn't have time to get a new cartridge so I blew the dust off of an inkjet refill kit that made it into one of my drawers somehow.

Anyway my unit is newer so I had to google to get the instructions but after that I filled 4 cartridges in less than 5 minutes. all I had to do was use a supplied hand drill to put the ink in and whamo no need for a trip to the ink jet shop and cheap too.