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Ink Refill for Epson WF-R5690
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[QUOTE="VA1DER, post: 217874, member: 15186"] No, it's because Epson has gotten much better at making chips that can't be cloned. They use a combination of technical and legal restrictions. They have cryptographic hash functions on the technical end, and use trademarked phrases in the chips' response strings and use trademark law to enforce monopoly. Also, pretty much all newer printers have firmwares that cannot be prevented from automatically upgrading portions of themselves. When Epson discovers chips that work in their new printers, new firmware patches are distributed out that disable those chips. When you buy the printer, the license agreement you are forced to agree with even warns you that using third party cartridges, even if they work, might not work in the future. In many cases, the "chip" firmware is different from the printer's main firmware. The main firmware will tell you when it's upgrading itself. The chip one can upgrade itself silently. Epson has their Eco Tank printers for people who are budget-minded for ink. But Epson closely controls the amount you pay for those printers - essentially rolling in the entire estimated cost of all "normal" priced ink you would have bought in a normal printer into the price of the ink tank printer up-front. They also closely control the features you can use. For example, the Epson ET-16500, a wide format (13x19) printer is otherwise identical to the WF-7620 with ink tanks bolted on. However in the ET-16500 version they disable the ability to do borderless printing. This is because they don't want you getting an ET-16500 in order to churn out cheap full-page borderless posters. They want you to pay them thousands either for ink or for a processional wide-format printer, which is why they are working so hard to make chips you can't easily duplicate. You can see why the focus for Epson printers has switched to chipless firmwares. [/QUOTE]
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Ink Refill for Epson WF-R5690
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