[ghshephard]

"over those past decades it accumulated enough starch on it to trip the pen"

I can't believe that's a very common case. The pens are there to deter people from playing games with their color printers, and do a pretty good job of that.

Well, at least they do a good job of making people buy starch free paper.

[dragonwriter]

> The pens are there to deter people from playing games with their color printers, and do a pretty good job of that.

The circuitry in color printers and copiers that specifically prevents reproducing certain patterns used in bills probably does a better job of that.