repair drum laser
Practicallly when you use such products, the fact is revealed. Nothing can recover a scratch from a Laser printe's drum. If there is some thing like that, the company's manufacturing the Drums or cartridges shud have closed. Hope You'll get some replacements in the refilling shops. Try it. I have regularely been asked by many of my friends, wether there is any product which removes deep scratches from CD's. But my practical experience says...just replace it.
Good luck