My printout has lines running through it. What should I do?

• If you notice white or dark lines in your prints (also called banding), try these solutions before you reprint:
  • Clean the print head.
  • Make sure the paper type setting matches the type of paper you loaded.
  • Make sure you loaded the printable side of the paper faceup.
  • Turn off any high speed settings in your product software.
  • Align the print head.
  • You may need to replace the ink cartridges.
  
  Related references
  Print Head Cleaning
  Print Head Alignment
  Selecting Advanced Print Settings - Windows
  Selecting Printing Preferences - Mac OS X 10.5/10.6/10.7
  Selecting Printing Preferences - Mac OS X 10.4
  Paper or Media Type Settings
  Replacing Ink Cartridges