Phaser 6600 ink lines on margin

[endives21]

I'm getting some ink lines on the margin of my pages. It happens on every few pages. Anybody know how I can get rid of this? 

It only happens on the back page, left side of the paper.

[CherylO-Xerox]

Hi endives21,

Thank you for using the Support Forum. Please take a look at the solutions for lines or streaks and see if they fix the problem for you.  If not please consider contacting your support centre for further assistance.