the microsoft "printer" is installed just in case you don't have a real printer
if the printer sits for ages unused
it's reasonable that the drum will dry out eventually from neglect.
the toner absorbs damp and forms a solid clump
the laser blows
the mirror jams
all would cause a "print" without inking the paper
but it wouldn't print a test page ....
I'm out of ideas
for a non tekky I can't suggest anything.
you could try printing to PDF ... here is an evaluation copy
http://www.fineprint.com/products/pdffactory/i ndex.html
or tick the print to file option (file | print)
and see if the file contains random letters and numbers - it just proves the driver)