Xerox Phaser 7100n problem strange colour 'streaks'

[Killeromantic]

IMG_2547a.jpgIMG_2548.JPG

Hello to print to my xerox phaser 7100n show me some white stripes in print, try the blue drum on another printer does not print the same and stripes, I've also noticed that when making multiple printing Stripes are blurred. That solution could prove,
thanks for your attention.

[Jake2o]

If it only appears in Cyan and the drum makes no difference then it can be the Cyan developer housing.
If it appears in all colours then the IBT belt would be likely or, although unlikely, the fuser / 2nd BTR

[Killeromantic]

Problem solved, just a cleaning laser lenses.