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HP Laserjet 2420dn - Faint ghosting of printed matter above & below actual print. Have tried cleaning page twice but no better Grateful for any suggestions

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  • Please perform a half page test, by printing a test page from tray 1.
  • Open the top cover as soon as the paper is 70% through from tray 1 so that the media
  • Check if the ghosting appears, if yes, fuser needs swap out.

Posted on Oct 30, 2008

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2 Answers

Two faint white horizontal lines


the white ghost lines are down to the charge wire within the toner cartridge being dirty, the only real way forward is to replace the toner cartridge as access to the charge chorona wire is not possible without ruining the cartridge itself

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Duplex printing in HP 2420dn on Mac OS X Lion 10.7.4


According to the specs, this printer does not have a duplex unit and therefore cannot print double sided prints.
DOUBLE SIDED PRINTING USING A SINGLE SIDED PRINTER
If your printer does not have a duplex unit then the printercannot print double sided pages automatically.
You can print double sided pages but you have to do it one page at a time.
First print Page 1 then place the page back into the paper tray, but turn thepage upside down and the print Page 2.
Then print page 3 on one side then page 4 on the other side and repeat for therest of the document.
I suggest you try a test page first, to get the printing the right way up onboth sides of the page so it reads correctly.

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1 Answer

Printed copies have ghost images on them. I have never had this problem before., It looks like the image printed twice - once fine and then faint horizontal lines, sometimes some of the previously printed...


1) try doing a full clean from within the menu on the printer, or within the computer software
2) You need to perform a half test. Put a sheet of paper on the manual feeder and do a config page from the information menu on the printer. When the back edge of the paper enters the printer, quickly open the toner door to stop the printing. Now remove the toner cartridge and look at the image below. If the defect is present, then the toner cartridge is the problem 99% of the time. There is a slight possibility that during the conditioning stage of the print process the drum of the toner is not being fully discharged so when the next stage takes places part of the previous image gets put on the toner cartridge again. Very rare. If the defect is not present then the fuser has an issue.

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1 Answer

HP Laserjet 2420 is printing ghost images - on the left side, from the margin to roughly 1" in, there is a lighter image of he text printed above.


Your fusing unit is most likely causing this. You will need to replace the fusing unit or if you can find a reputable tech you can save a bunch of money and just have the fuser film replaced. I have done this on dozens of HP printers with excellent results.
This is a common problem.

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2 Answers

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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.

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1 Answer

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After you have printed a page remove the toner cartridge and look at the drum underneath, is there a ghost image of what has just been printed on it?? if so the cleaning blade is faulty and you'll need to replace the toner cartridge - this is the most likely cause of your problem.
Your printer does have a fuser and it can be replaced, but i don't think it's the problem.

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2 Answers

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Hi Kelli.i would replace the drum unitand toner!

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1 Answer

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maybe the scan unit need to clean first you most sure that the toner cartridge is original and new then start clean th scan unit reflector d9b88f3.jpg

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Hp laserjet Printer


There may be a release lever for the print head assembly which would allow you to remove the print head and clean the excess ink from it. If it appears to get better the more pages you print it may be just a matter of time and lots of pages before it cleans itself.
Try running the print head cleaning utility multiple times to help reduce the amount of ink on the print head. This could take quite a few times before it gets better.

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clean the heads, re calibrate...do a test page, try again.

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