You sound like you work for Epson, Superspec.
Quote from "Which" report:
Some generic ink cartridges are almost as good as printer manufacturers' own and are much cheaper, says Which?
By choosing one of the best performing generics, an average user1 could save nearly £100 over three years. Using Epson ink cartridges would cost £140.60, whereas Print-Rite ink would cost £42.29
...The printer manufacturers' own cartridges do produce excellent results on text, graphs and photos, making them all Best Buys, but they're very expensive. Generics such as Print-Rite and Ink Again also gain Best Buy status for a fraction of the cost.
...Malcolm Coles, editor, Which?, says:
"We think it's wrong that own-brand inks continue to be outrageously expensive and we want printer manufacturers to reduce the cost of cartridges".
"We'd like to see consumers make this happen by buying one of our Best Buy generics and switching to printer brands with lower running costs, such as Epson and Canon."