as he told U may get a stuck paper, or if the fuser film damaged by changing the film it will be fixed. but some times it may not work. E 007 is a sign of Rotation Error around the fuser film (fixing unit) so blow it all the parts around there. & after cleaning it gently use proper lubricants on the gears. & make sure that even the fuser film also get lubricant (his own oil) . I hope it will help U
Anko, December 2010