A compatible cartridge is a cartridge that is not produced by the Original Equipment Manufacturer (OEM). These cartridges are designed to meet or in best case even exceed the standards set by the OEM in terms of performance, print quality and page yield.

Are you allowed to use a compatible cartridge in your printer?

You are allowed to use them in your printer and you will not void your warranty by using them.

This is clearly stated in the Magnusson-Moss Warranty Act issued by the Federal Trade Commission. The printer maker cannot force you into only buying their cartridges, it’s up to you as a consumer to make the choice on what you want to buy.

What about the quality of compatible cartridges?

Third party ink producers don't have the financial resources to invest as heavily in R&D as the big printer manufacturers. Still, compatible cartridges hold high standards. A test by TrustedReviews showed that many users actually prefers the printing results from compatible cartridges while PC World showed that compatible cartridges most often yields more printouts than OEM cartridges. 

If you are worried over the quality of the compatible ink or toner please remember that it is not the only factor affecting the print quality. The capabilities of the printer and the quality of the printing paper also have significant impact on the end results.
What is a compatible cartridge?
Mercury Ink LLC • Seekonk, MA 02771 • ph (855) 431-7007 • fx (855) 337-8833