> The printer heads that you find on dot matrix
> printers that use a ribbon ....

24 V to 48 V, I beleive. And the active resistance of the coil is well
under 10 Ohm. So, impulses should be short enough not to overheat it
and long enough to make the pin move.
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist