Well, the good news is because this is an inkjet printer, the horizontal stripes are most likely the printheads are not spraying properly. You can try running a printhead cleaning process, or if that doesn't work, you can blot the printheads on a damp paper towel to free them up. Also, sometimes a forceful shake will get them flowing if the blotting doesn't help.
Timothy N. Couch
A1 Printech
Anchorage, AK