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Laser printer secret codes cracked
"We've found that the dots from at least one line of printers encode the date and time your document was printed, as well as the serial number of the printer," said EFF Staff Technologist Seth David Schoen.
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User Comments (3)
Post a comment|
microbot
on October 25, 2005 6:42 AM |
I work quite extensively with HP and Xerox colour laser printers. I would be interested to know how this coding is done, and how it has been cracked.I am posting this from the U.K. I was wondering if this system is a global issue or just limited to the U.S. / Canada. |
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microbot
on October 25, 2005 7:09 AM |
I work quite extensively with HP and Xerox colour laser printers. I would be interested to know how this coding is done, and how it has been cracked.I am posting this from the U.K. I was wondering if this system is a global issue or just limited to the U.S. / Canada. |
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microbot
on October 25, 2005 7:13 AM |
Posted a second time in error.Apologies. |
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