Lexmark v. Static Control Case Archive

Lexmark's DMCA case against Static Control, aimed at eliminating aftermarket laser printer toner cartridges. Lexmark has implemented an "authentication" handshake between its printers and toner cartridges. When Static Controls reverse-engineered the authentication procedure in order to enable refilled and remanufactured cartridges to work with Lexmark printers, Lexmark sued in Lexington, KY, claiming both copyright infringement and circumvention in violation of the DMCA.


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