Question about HP LaserJet 4350TN Printer

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HP 4350tn with repeating image

I've got an HP 4350tn that is repeating an image down the page. I've tried diffenerent toner cartridges from machines that do not have this problem, yet when placed into this machine they start to produce the repeating image. I've also changed out the transfer roller with a new one. Could it be a controller board of some kind? Thanks for your help.

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Try replacing the fusing unit.

Posted on Feb 19, 2009

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IMAGE TRANSFER FROM ONE PAGE TO THE NEXT


Is the image repeating itself down the page?
Are all of the colors repeating?

If just one color, replace that toner cartridge. The wiper blade has gone bad internally.

If all colors, replace the fuser.

Mar 26, 2014 | HP Color LaserJet 2600n Printer

1 Answer

I have a hp laserjet 1515n. doubleing printout problem


I am not sure what printer you have here but if you are having repeat images down the page then it more than likely that you have a faulty toner cartridge. Try changing the toner cartridge first.
If that does,nt solve the problem then you have a defective fuser assembly.

Jun 10, 2011 | HP : HP6L Laserjet Printer

1 Answer

Pages printed with dark horizontal lines the entire length of the page with a repeating (lighter) images.


I have seen bad laser scanners cause this...
A black line across the page from left to right, of various widths, at various intervals, all the way down the page.
First, though, I would reseat the toner cartridge. If the problem disappears, you are in luck!
Try another Toner Cartridge to see if the problem disappears.
It could also be a bad control board.
Good Luck.

Nov 03, 2010 | HP LaserJet 2420 Printer

1 Answer

Brother MFC-7420 just started printing a shadow image


Sounds like a bad drum cartridge. Pull the toner/drum cartridge out of the machine and set it down. Press down on a (blue?) tab to release the toner cartridge, and you can lift the toner cartridge out of the drum cartridge. There is a cleaning blade in there - a soft plastic blade that rides against the drum and scrapes off toner that didn't get transferred to the paper. If it gets stuck off the drum surface, images repeat a few inches (one drum circumference) down the page.

A new DR-350 drum unit should fix it. have the machine's power on when replacing it. While the door is open, touch the CLEAR key. The display will read "REPLACE DRUM?" or something like that. Press 1 for Yes.

Jan 05, 2010 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Prints over its self down center of page. Whats printed on sheet in middle of page is lightly printed again and again every 2 to 3 inches down the page.


If it is jjust one color. Replace that toner since the wiper blade is not working. If it any or all colors try taking out the fuser and seeing if the image is laft on it. The fuser is under the top panel.

Dec 16, 2009 | HP LaserJet 4350TN Printer

1 Answer

Hp 4550 vertical line down center of page


From the service manual:


Vertical lines or streaks
 Check for a leak where light might be entering the printer.
 Check for circumferential scars on the photosensitive drum. If scars are present, replace the
drum cartridge if the line goes through all colors.
 Check for circumferential scars on the upper fusing roller. If scars are present, replace the upper
fusing roller if the line goes through all colors.
 Remove the imaging drum and inspect main charger or imaging drum for a contaminant, such as
a fiber, if the line goes through all colors.
CAUTION Do not expose the imaging drum to light for more than 15 seconds. The drum is light sensitive, and
exposure to light can cause permanent damage.
Vertical black lines
 The toner cartridge is defective.
 The toner cartridge is not seated properly.
 The fuser entrance is dirty.
 The fuser has scratches on it.
 This might be a repetitive defect. If so, the lines will repeat at a consistent interval down the page.
 The printer needs to be cleaned.
 There is a problem in the heating element.
Vertical white lines
 If white lines or streaks appear only in the black areas of the printed media, print several
configuration pages to clear the anomaly. If this does not clear the problem, check the sleeve
surface to confirm the defect, then replace the black toner cartridge.
 If white lines appear only in a particular color, try printing several configuration pages to clear the
error. If the error does not clear, check the sleeve surface to confirm the defect, then replace the
defective toner cartridge.
 There is a lack of toner or the toner cartridge is faulty.
 There is dirt in the laser path.
 The fuser is defective.
 A mirror in the laser scanner is dirty.

Apr 07, 2009 | HP Color LaserJet 4550 Printer

1 Answer

Previous image repeats on next page


The problem is likely the fusing assm.
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.
Hope this helps

Mar 24, 2009 | HP LaserJet 4200tn Printer

2 Answers

HP LaserJet 1012 Printer prints ghost images


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.

Aug 21, 2008 | HP LaserJet 1012 Printer

1 Answer

Hp 2200D laserjet dirty copies


Toner and the drum is all one unit it is more likely that toner got onto the transfer roller and some near the fuser unit. Best thing to do is turn the machine off open the cover and remove the toner cartridge.

Then Hoover (vac) the inside with a soft brush and clean out all the loose toner. Once that is finished install toner cartridge a run about fifty sheets through to get rid of any other toner. Suggest installing a new toner cartridge as well.

Hope this helps you and please rate me
Cheers J

Dec 28, 2007 | HP LaserJet 4350TN Printer

1 Answer

Shadows on prints


The comment from Kasmodan2 is true it can the toner cartridge, but is most cases it is the fuser. I repair HP laserjet machines day in and day out to replace the fuser is easy.
  1. Turn power off
  2. Open cover at right hand side rear
  3. Remove data cable
  4. Open top cover remove toner cartridge and press button on right hand side and slide the right hand cover off
  5. Open the back cover and lower the door all the way down
  6. Remove the two silver screws
  7. Take out the paper tray as this will be easier to remove the back cover
  8. Pull the back cover from the bottom and should unclip be careful not to break this cover.
  9. Once open then you will see the fuser unit unplug the connections and remove the screws then slide out the fuser unit
  10. Refit the new fuser unit plug in all the connections and reverse the above process
  11. Turn machine on and test if all good the machine will work fantastic if there is a constant red light repeat above and check connections if still red light then the new fuser faulty and not heating up.
Hope this helps all of you
Thanks J

Dec 04, 2007 | HP LaserJet 2100 Printer

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