Refilling printer catridge is an important work.This will be often done by the people with the help of the refilling kits like syrange,ink and more.You have follow the instructions strictly when you refill the ink catridges.If you do some mistakes than the ink catridges will not work for you.Toner catridges are mostly used in laser printers.Some model videos on the internet will show you how the catridges will work inside the printer.This will help you to save the catridge from damage. http://www.cheaprefills.info