On 6/15/2006 at 12:05 AM Roger Holmes wrote:
 Was it because of poor maintenance? My drum printer has
not actually
printed anything for a decade or more, though as of April it can now feed 
paper
 instead of making burningsmells from the sprag magnet
solenoids. 
I think the old Univac drum printers were just sub-par.  My experience with
the CDC 501 showed some waviness, but not an annoying amount, unless there
was a sticky hammer.  But it was pretty easy to tell the difference between
501 drum and 512 train printer output.
Cheers,
Chuck