Question about HP LaserJet 4 plus Printer

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Dirty, smuggy, pages

I have replaced the toner cartrige and the drum and added fresh toner. I cleaned the inside under the cartrige because toner had spilled and then cleaned the Transfer Roller. Not sure that was okay to do but I did it anyway. I got a few really good clean copies but after the third one the smuge slowly came back. Back in 2002 I replaced the Fusing Assembly and I suspect this may be the culprit? I am not sure if I should pursue the Fusing Assembly? Could this be the problem or is there another part I am not aware of. Is there anywhere I can buy parts for this printer. I really love it and it has been a great work horse and don't want to give it up. Thanks.

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  • Francoise Nigro Mar 03, 2009

    Tried to rate but did not go thru. sorry. Thank you both. I tried the first option and found the smuge was there. I tried the second option but got lost. When the paper is coming out it is alread in the back and has gone thru. Did not understand where the fused portion is. It seems it is probably the toner cartrige. It is relatively new so I guess I got a bad one. Will buy a new one and try again.



    Thanks a lot for all your help.

  • Dinozzo Mar 16, 2009

    Pages smuggy. Is it the roller? Can I fix it myself? How?

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This is the test to determine toner or fuser issue.
Print a test page
When you hear the paper feed into the machine open the top to stop the machine
Remove the toner cart.
You should be able to see the page with printing on it. (This is before the page hits the fuser)
If you can see the smudge or marks on the page the problem is most likely the cartridge but NOT the fuser.
If the page is clean the problem is most likely the fuser.
To confirm run another test page and open the lid as soon as you see the page start to exit the machine.
Remove the toner and pull the page out from inside the machine.
If the marks are on the fused portion of the page but not the unfused portion the problem is the fuser.
Fuser is readily available.
Hope this helps

Posted on Mar 03, 2009

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It still sounds like a bad toner cartridge.. Try partsnow.com for buying parts. does not sound like a fuser problem.

Posted on Feb 25, 2009

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