Conversation Between UberTech and jbh

Id be looking at replaceing the temp sensors

HELP please!! Two machines:- 1x6501(1,2million clicks), 1x6500(4million clicks). Fusing problems...top fuser rollers changed, fuser belts changed, bushes and bearings changed, still not fusing on heavy coverage either single or double sided, changed nip pressure on bottom roller etc. We just can't seem to work out why. Is there ANY chance it could be a sub standard batch of fuser belts? any ideas would be greatly appreciated.