Compared to the high capacity Epson 603XL black also available, the 603 black contains a pretty humble amount of ink. This is however by design, as the C13T03U14010 and the rest of the colours in the 603 range have been designed for light users of the Expression Home and WorkForce inkjet printers they are compatible with.The 150 page estimated yield of the genuine Epson 603 black will still however be fine for most home users and has a reduced price tag to compensate. As this C13T03U14010 is an original Epson product, you do of course get the best print quality available too!