I googled this problem, and did not find other workable solution. I want to share this so others won’t have to unnecessarily spend money on a new fuser.
Situation: We have a LaserJet 8150 which had a repetitive print defect. The problem developed, or became severe enough to be annoying, after a print jam in the fuser take up. The cartridge was recently replaced, along with ALL the rollers, so that was not the problem. The fuser was replaced 18 months ago after a similar problem developed. I didn’t want to replace a fuser which should still have 100K of page life left.
I removed the fuser, and (after allowing to cool down) noticed a varnish like substance stuck (fused!) to the fuser drum. I didn’t want to scratch or otherwise damage the fuser, so I tried cleaning with Q-Tip and alcohol. That worked, but very slowly.
I then decided that if I could not clean off the varnish, we would need a new fuser. So, I got some Goop-Off. Using a piece of a paper towel soaked in Goop-Off, I worked the varnish and dissolved it away. I rotated the fuser drum with the white gear on the fuser’s side, cleaning all appearances of varnish.
After allowing all the Goop_off to evaporate, I reinstalled the fuser and ran a cleaning page.
Print is now perfect!
I recommend this as a final attempt before replacing the fuser, because the cleaning process could damage the fuser. It worked for us, but may not for anyone else.
I think the varnish problem started when we ran some peel-off labels through the printer for a mailing. I think some of the label’s glue, or possibly the wax-like substance on the label page’s backing, transferred to the fuser and got burned on.
I know the previous fuser loss was caused by running pre-printed letterhead through the printer where the ink used for the raised lettering on the letterhead melted when it passed through the fuser.