Continuous Ink System (CIS) is a total solution to the medium to high-volume ink users, Designers / Graphic Production Houses / Office / School and Home. Users enjoy significant cost saving and fewer hassles of cartridge replacement but equally brilliant printing quality.  

• Lifetime for HP cartridge for refill approx 4 times, you can use this system forever.  When your cartridge printhead burn it out, you can convert virgin used cartridge again.

• 99% successful rate for convert HP Cartridges to Continuous Ink System.  The Instruction show you how to convert your used HP cartridges to CIS and installation steps.  

• You will get our "Own Professional Instruction for CIS HP" with many pictures installed in many different printer + Printhead cleaning procedure + Priming Procedure.  

• DIY kit does not come with HP cartridges, it require your used virgin HP cartridges to convert.