Epson 552 EcoTank Ink Ultra-high Capacity Bottle Photo Black (T552120-S) Works with EcoTank Photo ET-8500, ET-8550

My EcoTank Epson ET-8500 is a marvelous machine. I replaced an old Epson with it and here is what I discovered.The 8500 does not accept those old ink cartridges that last but a few weeks of light use. The tanks, or reservoirs, in the printer hold ink dispensed from these bottles. These ink bottles hold 70 milliliters which is just under 2.5 ounces. That is more than the ink reservoirs in the printer hold, but the ink bottles are re-sealable.Dispensing ink into the printer reservoirs could not be easier. The tops of these ink bottles have a plastic puzzle piece shape that matches the ink reservoirs. Furthermore, each of the six colors has a different shape so you cannot inadvertently dispense the wrong color into the wrong reservoir. Just unscrew the cap and press the bottle into the appropriately shaped reservoir and watch for the ink level to rise. Be sure to remove the bottle before the reservoir overflows. There is no fuss or mess. I have never spilled ink onto the printer or my hand when dispensing ink.These bottles of ink are expensive, but unless you print hundreds of pages every day, you will not have to replenish the reservoirs for a long time. I print something perhaps once or twice a week. It's difficult to estimate how many letter-sized sheets of paper I print, but I would guess it is perhaps between five and ten a week, and I literally do not have to replenish the reservoirs more than once a year. I also print text and images on CDs, and the ink adheres to the printable CDs perfectly.This ink, and the printer itself, are a terrific improvement over how Epson used to do things.

Black ink. Nothing else to say.

Great print quality ink, lasts a long time! Worth it over cartridge ink printers.

Great printing results. Will buy again.

OEM is always the best. No issues with ET-8550 printer. Best colors always.

I have only really good reviews about this ink (and the printer that it goes too).I went back and forth for several months about purchasing the Epson 8550 EcoTank FOR MONTHS before purchasing this for my business. I am an artist and I am using it to create and print my own multi sized prints, as well as book covers and stickers.I'm fairly certain this printer paid for itself and it's ink I purchased before the month was up!The bottles of ink not only fill the entirety of the eco tank but also have 1/4 of the tank still left in the bottle once the printer is full (5/4ths of ink in a bottle)I have printed over 600 prints and covers of various sizes and colors and have barely gone through 1.5 bottles of all of the inks. I love the vibrancy and saturation of color that you get with this printer and the different sizes and options you have. I'm so glad that I bought it!

Worked as advertised.

if you’ve invested in this printer, then you need to get the real printer ink don’t fall for getting the knock off printer ink, and risking your warranty get the real printer, ink, and it last a long time.