As should be expected from the OEM, these inks are excellent and work well in the printer. Results are sharp and clear. Using the printer for 2~3 A4 sheets each day, the inks have not dried in the head so do not need excessive ink consuming cleaning every time the printer is used. No more cleaning than with my old printer.
Only down side at the moment is that being a very new cartridge, no compatibles are currently available, so replacing the inks is expensive.