19 Oct
2004
19 Oct
'04
9:09 p.m.
On Tue, 2004-10-19 at 16:14, Ian Grigg wrote:
R.A. Hettinga wrote:
US scientists have discovered that every desktop printer has a signature style that it invisibly leaves on all the documents it produces.
I don't think this is new - I'm pretty sure it was published about 6 or 7 years back as a technique.
I think you're thinking of color copiers.