Perform the automatic media registration on the control panel for the media of your current job.
Print the job again or print the verification chart to verify if the media registration is correct now. If the media registration is not optimal, continue with step 2 below.
Perform a manual media registration adjustment via the control panel (preferred) or via the Settings Editor. Only needed in incidental cases. E.g. media registration is not optimal, media is 1-sided.