Here my first impression: The ink cartridges did not come in the pack shown, but were loose in a small carton. There were also not shown cartridge and then also different varieties. Really not very confidence-inspiring! After especially the color cartridges are very petite and 60% of this already small volume fills the sponge, I have taken the trouble to calculate the respective tank contents. Here is my result:
On sale 17 ml. For the color cartridges and 55 ml. Are indicated for the black cartridge. Content in my calculation: 6.2 ml for the color cartridges, and 25.8 ml for the Black Cartridge - so far less than half.! I wonder if I should ever have to try these cartridges or all send the same back.