HP 8150N Ghost Images

[sherryc]

Hi,
I have an HP Laserjet 8150N that is printing faint ghost images. It's printing the ghost parallel through the middle of the page. The ghost image starts very very faintly at the top of the page and gets darker from about 2 1/4 inches from top to about 6 1/4 inches from the top. Then it fades to nothing for about another 3/4 of an inch.
The first page it prints shows the ghost only at the right edge of the paper, and it's a ghost of that page. This ghost starts at about 3 inches from the right edge. The ghost goes all the way to the right edge of the page.
The next page shows a ghost all the way through the middle of the paper. It's a ghost of the first page with part of the second page showing up mixed in with the first page near the right edge of that page. The ghost starts at the very left edge and goes all the way to the right edge.
The next page shows a conglomeration of the first 2 pages as a ghost image all the way through with some of the third page showing up near the right edge in the conglomeration on the third page.
The fuser was just replaced about 20K pages ago and I just replaced the toner. It's still printing the ghost image.
Any hints on this.
Thank you for any help.
-Sherry

[MichaelTech]

Try cleaning the Transfer roller. It can be popped out, and use a dry paper towel to wipe across it several times, while rotating it.{Use a clean section of the towel each time.} There may be toner built up in the area that it sits. Remove the fuser, and then blow out the channel with canned air.
If this does not help, then the High Voltage Assy. may be going bad.

[Strider]

Your problem as described is almost certainly in the fuser.To be sure whether your problem is in the fuser or the toner cartridge,you could do a half-self test.Just do a search for the test on this forum.Its described many times.The chance that its anything else is less than 5%.

[ptjeff1]

These fusers are often shipped with the tension levers up to prevent flat spots from developing on the lower pressure roller before it is installed. Make absolutely certain they are down as shown in the picture on this page http://www.printertechs.com/tech/mkinst/mk-5si8000-2fuser.php

I've had this tech support call many many times and if the levers are up you eventually get ghosting and toner buildup on the upper fuser roller. Once the levers are down any toner buildup usually goes away after 20-30 pages.