These cartridges are very easy to refill. It takes less then 3 minutes to complete the job, even if it's your first time. NO special tools needed.  These toners are Brand New in a factory sealed bottle and warranted to be free from defect.

I ship the toner with detailed instructions and a screw-on funnel with each shipment. Each bottle fill prints approx. 4500 page yield @ 5% coverage.  

NOTE: You will eventually need to replace the smart ship on this cartridge - not with every refill though.  I've made it through 2-3 refills before the printer refuses to print without a new chip installed.  We are now selling the chips for each color.  They can be purchased by clicking here.