I believe they are both non-production, but I 
believe they are what their names describe.  A 
laser copy background is a xerox/laser copier-
created image of the original background while a 
screen cap background is a printed copy made from 
someone's capture from the image scene on screen, 
and then maybe photoshopped to remove the 
character.  I would think a laser copy background 
would have edges that don't appear on TV, as well 
as detail behind the character.  This is not to 
be confused with a 'laser background' which may 
refer to one that is production, but was printed 
out originally instead of a painting being used.

Both copies seem to enhance sales of cels, simply 
because they look better.  I personally don't 
think they are worth much more than what it takes 
to create them, but to each his own.

Keys