BCH® Premium 600ml (20oz) HP Printer Bulk Refill Ink - High Yield Ink Cartridge Replacement for HP OfficeJet, Envy & DeskJet Printers - Ideal for Home, Office & Small Business Printing Needs

The ink works well. Black is black not purple.This review is for the ink. This ink is great and prints well. It does empty from a cartridge quickly compared to a laser printer but so does a new factory cartridge. From a cost perspective buying this instead of new cartridges is a no-brainer. Buy this ink. When refilling wear gloves, and be prepared for a mess that will save you a lot of money and give you excellent printing results.When you work with ink expect it to get messy. You will overfill or spill ink. When the cartridge is overfilled it can leak from the bottom. A piece of paper towel placed in a pringles can lid or a peanut jar lid or any plastic lid can help contain the mess. The above facts will be true of any refill ink you buy.If you decide to refill your cartridges be sure to get a "Ink Refill Cartridge Clip" that will fit your particular cartridge.To get the air out of an empty cartridge so it will print again you will likely need something like this:https://www.amazon.com/Refill-Cartridge-Clip-Rubber-Syringe/dp/B07QF7GK82/ref=sr_1_1?keywords=ink+cartridge+refill+clip&qid=1574460657&s=electronics&sr=1-1