Works fine with my Epson Stylus Pro 4800. I have found to be as good as original ink. The only issue is the chip has manufactured date of July 2011. This can be seen when printing, printer status page from the printer "Test Print" menu. The best before date on Box was 12/2017. Good rule to follow is print at least every other day. Found an excellent article and file to excercize your printer search "Printer head cleaning with automation"

I have been very happy with these cartridges for very old Epson Pro Stylus 4800. Had issues with gumming up but realized docking station required major cleaning. Now printing like a charm and test prints are perfect first line! I do print full gamut test swatches weekly as a workout for the printer

works perfect

belle qualité

bonne qualité

BELLE QUALITÉ D ENCRE CEST OK