Digital BW, The Print

While trying to make a 5x7 B&W using the new QTR, I experienced some
paper feed problems on my Epson 2200 and actually made a print with no
paper being fed.

So, all that ink went somewhere...  Now, all my prints have ugly black
lines on the BACK of the print.  Since I make and sell a lot of
notecards, having a clean back of the print is imperative.  Any ideas
on good methods to clean this up? I tried some Windex on a paper towel
but I honestly just don't know where to use it!

Thanks in advance.

Ol' Don in Broken Arrow