hmm, what type of scanner do you have?
cuz i have an hp.
What i do, is i scan it into MSPaint and then copy it into psp.
that way if it is scanner to psp issues
the paint would take away the issue. and you can resize everything accordingly i guess.
and if it's a psp to printer issue, copy the picture into something it will print from. like microsoft. it wouldn't really interfere to much to the picture i think.

hope i helped. even a little bit.