I had 3 of these suckers go bad over the past 6 months, but the printers are too new to replace ( and of course just out of warranty ).

I have replaced 1, but I want to try and fix the 3 units I have here.

The issue:
Full page covered with all 4 colors and none seem to be fused to the paper.
It's like electricity is not getting to some or all parts... I am not sure if this means the whole page was charged to attract or if the toner is just on the pages because what would normally [ be powered?] keep the toner off is failing.

Is anyone familiar with these units? or just good at troubleshooting?



Below is my search via eBay for replacement parts. It should offer some insight into the part I am looking at should the part numbers etc... help
( 1320, 2130cn, 2135cn, 2150cn, 2135cn, CN-07N7M1-71971, 0p266c, p266c, 07n7m1, 7n7m1, CT350846, KGR81, CT350750, 331-0711) (phd,Imaging,Drum)


Thanks for your help!