Poor ink

I have therefore bought these cartridges because they have more content than the Epson ink cartridges. There are 4 cartridges in the pack (P13), each with 9 ml contents. In Epson Multipack (T0715), the black cartridge and the color cartridge 7,4ml each 5.5 ml.
The difference in price for Epson Multipack is not large, but due to the amount of ink should nevertheless result in a cost savings. But this is not so. I use an Epson S20.

1. The ink clogging the nozzles regularly, so always needs to be cleaned in accordance with high ink loads. For a lot of ink goes away.
2. The ink quality of Pelikan can not compete with the brilliance of the colors and also the quality of the black Epson ink.

I advise against this product. With the Epson cartridges I have no problems, even during longer periods and the quality and the price are right also.

PS: I am little printer. The printer is constantly turned on in order to prevent automatic cleaning operations.