Hi turi,
Thank you for using the Xerox forum.
I am not sure that I understand your question but it looks like your sample has a light area.
I have seen similar defects because of paper with dampness in some areas. Have you tried using a new fresh ream of paper?
I would suggest that you review the Phaser 8560 Support & Drivers site and following solution.
White, Light Lines or Streaks (Eliminate Light Stripes)
If that does not resolve your issue you may consider contacting our specific product support experts at the following link:
Fast Track to the Expert
Did all the print quality troubleshooting eliminate light stripe and jet substitution. See the picture of light stripes tes page.
Thank you