I swapped trays from another printer , same sound grinding sound.
this link http://www.fixya.com/support/t1905326-hp_p3005_making_grinding_noises and this one http://itgreier.blogspot.com/2009/11/hp-laserjet-p3005-grinding-noise.html
explains alot but i cant seem to understand what metal needs to be bent outward or forward.