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Re: Printer is ghosting - I have changed power supply
Might be your transfer roller. I would try some laser cleaning paper and run that through a few times. If that doesn't work, I would purchase a fuser maintenance kit which will have the rollers as well as a new fuser.
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Ghosting is a condition where theimage prints properly, but a much lighter copy of the image also printselsewhere. This can be due to a problem with the power outlet that is supplyingpower to the printer. Check the power outlet by plugging in a different printerto see if the same results occur. Ghosting can also be caused when consumableprinter parts (such as the drum or imaging kit) are near the end of their life.All of the consumable parts in a printer are rated for a certain number ofpages. Once a printer gets near that magic number, you'll need to replace thoseparts to eliminate ghosting. This will help. good luck.
Check whether you are running as Black and White or Gray Scale. Many printers only print straight black by using all four toner cartridges- Cyan, Magenta, Yellow, black. If are running colored print in black and white and u choose grey scale it will automatically give you a screened image as a light print.
Run a half test. While printing a few pages, open the cover, pull out the toner and look down at the paper. If you see the ghost images replace the toner. If you don't see the ghost images, replace the fuser.
I had replaced the fuser - no improvement. I removed the fuser, imaging unit & transfer roller. CAREFULLY using a vacuum cleaner I cleaned all units and the internals of the printer, rotating the roller on the imaging unit to clean all parts. (Warning Place Imaging unit on paper as toner escapes) After a few test prints the page cleared and duplicate ghosting cleared.
1. faulty wiper blade on your toner so that the previous image in not being wiped off the drum.
2. worn fuser sleve.
To work out which it is you will need to do a half stop test: print off a normal document then when it is about half way through the printer ( unfortunatly you may have to repeat this to get the timing right) open the front cover. remove the toner cartridge. if you can see the ghosting on the page the it is the toner. if its not there then its a new fuser. to save on money and if your confident enouh you may be able to just chane the fuser sleve depending on the state of the fuser on a whole.
hope this helps
feel free to email me if you have any other questions:
I ran the hp toolbox "cleaning" mode too and it did not help the problem at all. I still have a dark smear concentrated in the middle of the page, and ghost images repeated lighter all the way down the page.