> > Why would a plotter care about the date??
>
> Since I once opened an Epson Stylus, found a battery inside and a real
> time clock, I think differently. Maybe it's unique to Epsons printing
> technology and their sophisticated cleaning program for the heads, but
> who knows? The big danger are embedded chips...
>
> Ulrich
I once heard of a cargo pump (typically used on bord chemical carriers).
Although neither the pump nor the control system has any use of a clock,
one of the chips in the control system has a clock. Guess what happens in a
couple of months...

Gjermund Skailand