printer "dot code" broken by EFF

Perry E. Metzger perry at
Tue Oct 18 12:10:57 EDT 2005

Many color printers these days include a subtle set of dots in the
output that encodes information on the printer that produced it,
allowing tracing of who printed what. EFF has broken the code on one
such line of printers:

Perry E. Metzger		perry at

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