Question about the ADF of a scanner.

[Michael ODonnell]

> feed rollers on some scanners and printers.  Basically, they
> get glazed and cannot pull the paper.  Cleaning the feed rollers
> helps sometimes.  Typically I use alcohol to clean them and then,
> if I'm still having a problem, a very, very mild abrasive

I'll second that and as an aside I'll comment (having
run printing presses and mail processing equipment in a
previous life) that automated paper handling is a problem
that gets %0.01 of the respect it deserves.  Considering the
essentially infinite combination of infuriatingly subtle
variables (static electricity, fiber quality, temperature,
moisture [ambient as well as absorbed], friction coefficients,
roller degradation, fouling by dust/grease/fibers, etc, etc)
it's a fscking miracle printers work at all, never mind that
most of the time you don't even have to think about them.