Apparently the profits from selling a substance worth more than gold or even the blood in your veins is not enough to enable Epson to survive a bit of competition and so they have demanded eBay remove a long list of compatible cartridges which are sold on that site.  Their claim is based on the proprietary way in which "chip contacts on the cartridges are aligned"; presumably something resembling a single raised finger.  HP tried a similar approach a year ago, adding DRM to their printers and ink cartridges which prevented refilled or third party cartridges from working.  They also included an expiry date in the DRM, so even a full authentic cartridge would have to be replaced after a set date.  This did not go well for them and they reversed their policy after a public outcry.  You can read more about HP, Epson and the price of your blood over at The Inquirer

For now it continues to be more economical to toss your Epson printer out when an ink cartridge runs dry than to replace it with a full one.

"EPSON HAS become the latest printer company to attempt a ban on third-party printer cartridges, asking eBay to issue takedown notices for sellers under the site's VeRO programme."

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