Question about Xerox WorkCentre Pro 412 All-In-One Laser Printer

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Xerox 412 I put in a new drum and apparently it wasn't in all the way---I made a copy which caused toner to distribute all over the drum--I took a Q-tip and wiped it off--put it back in---I took out the 2 screws to the fuser assembly and removed the paper jam. The machine works, but its' making a rattling noise and the copies have a section down the center where its darker---(toner on the drum?) Do I need to replace the fuser, drum, or both? Also can't figure out what the rattle is coming from.

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  • d920 Sep 24, 2008

    Thanks so much for all the great information and quick response. Apparently we do only have 2 screws holding in our fuser assembly---from what I was told when someone worked on the machine in the past thats all they put back were the two. We were getting the "ghost" image down the center---that's why I replaced the drum thinking that may be the problem. The reason I thought the drum was in all the way was because the old drum just pulled right out--but the new one had to be snapped into place--so I had put it in as far as it would go without really forcing it and it obviously wasn't far enough and everything escalated from there. Now back to the noise---maybe a rattle is not a good description---we checked the drums gears and that wasn't it (I actually put the old drum back in and it still is making the noise). It's hard to describe other than it has a consistant rythm to it, but gets louder the more copies we make. Almost like something is in there that shouldn't be!?! It reminds me a little of the sound that was made when kids would ride their bikes with a playing card clipped to the spoke of their bicycle tire--just not that fast--similar to that just to maybe give you some kind of comparison.

    So it sounds like if I would have replaced the fuser assembly first all this could have been avoided.

    I will order a fuser assembly today--and if you have anymore thoughts on the noise I would appreciate hearing from you.

    Thanks again!



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This post is loaded. First of all, there should be 4 screws holding in the fuser. Unless you are talking about removing the 2 screws that hold the pressure and heat roller together in the fuser. 4 screws hold the fuser in the machine, 2 screws hold the fuser together. I am not sure exactly if your fuser was mounted to the machine with only 2 screws, or if that is an accurate post and you removed the 2 screws that hold the fuser frame together. Either way, I seriously doubt the noise is coming from the fuser itself.
Now, the darker section down the middle. I would suggest taking the fuser back out of the machine and looking at the black heat roller in the fuser. If it is not clean and shiney, and has a rough texture to it in the middle, that roller is bad and will require replacing the fuser.
What I am curious about is, the rest of the copy. Is the copy fine outside of the middle? If so then the fuser should fix it. Note if there is some reprint, sort of ghost print in the middle of the page.
The rattle may be the gear on the back of the drum cartridge, It is a small gear that drives the cleaning roller. Pull out the drum and look on the back, there are 2 small gears on the back . One of them may have broken a tooth and is jumping and not rotating properly.
Another problem, as I read this may be the toner cartridge not having the ink distributed properly, To eliminate the toner cartridge as the problem. Remove the toner and look at the roller on the front of the cartridge.It shoud have ink distributed evenly across that roller, No streaking, it should be a dull black fuzzy apperance across the roller.
Firstr check the middle of the fuser roller for the wear I described. Then the back of the drum for the noise, then the toner carteidge for distribution.
If its not fixed yet, let me know. We can discuss the laser and scanner issues. But those are far less likely.
You posted a good one...

Posted on Sep 24, 2008

  • Rick Kasper Sep 24, 2008

    If you want, you can just replace the heat roller. Its a lot cheaper, and not to hard.

    If you want to, log onto google and look up "the parts drop": It should be the first item that pops up.

    Call them and ask for Britt, he has just the roller and probably would send directions to replace it.

    I don't work there, but have done business with them for years, They are honest and very helpful.

    Yeah, that is your problem. that will occur on a 412 approximatly eery 30-40 thousand pages.
    You can replace the black aluminum roller probably 4 times before needing to replace the fuser.

    I would suggeswt cleaning those little pointed fingers that rest on the heat roll. They build up toner and paper dust and can cause jams.



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