Question about Lexmark C760 Laser Printer

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BLACK VERTICAL STREAKS

TONER CARTRIDGE HAS BEEN REPLACED -- FUSER? OR
I.T.U

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  • Makoman Feb 26, 2009

    there is no ink in this printer IT IS A LASER.......................

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Toner recently replaced?
have you cleaned nozels?
try running a cleaning cycle.
also clean the paper rollers to make sure you got no ink on them.

Posted on Feb 25, 2009

  • sean sutton
    sean sutton Feb 26, 2009

    if it is a laser why would it have a fuser?

  • sean sutton
    sean sutton Feb 26, 2009

    what do you think the toner is?
    it does not print with a laser, the toner is ink powder. the laser sets it to the paper.
    it will still get blocked and it will still need cleaning


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1 Answer

How do I get rid of vertical streaks?


You may have a bad drum cartridge. Is it refilled? Try replacing it with brand new original.

If there are debris of "black film-like material" you may need to replace your fuser film.

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Hp lasject 4050a toner cartridge have black line in the paper


Hello,

The vertical lines can be caused by a damaged fuser assembly. The fuser heats the toner and melts it onto the paper. The roller is covered with teflon and when it gets worn down it leaves streaks or "ghost" images on the paper. Here is an article dealing with the lines on a Laserjet 2100 printer but the cause is the same for the 400 and 4050 series printers. Check your fuser as per the information in the above article and if need be order a replacement fuser from somewhere like Amazon.

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We have a HP LaserJet 1320 printer that is leaving black marks or streaks on the paper-maybe ghosting(?). We have switched cartridges and it is still appearing. Any help would be appreciated!


Vertical lines, ghosting, streaks, and dots usually indicate a problem with the fuser when it doesn't regulate temperature correctly. When this happens the toner sticks to the drums and then copies the impression on successive pages, or gets scratched by the sand papery build up making lines as each sheet goes through.

Horizontal lines, page dusting, and vacant areas on the page are usually the toner or the drum, which on most printers are one unit.

If you have replaced the cartridge and the problem didn't go away, you probably have to replace the fuser.

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2 Answers

Our copies are streaky like the drum is not clean.... help! There is black streaks on the top of all of our copies on our canon imagerunner 3300.


A) Black Streaks, Shadows, And Ghosting
Adjust the printer's lightness/darkness setting to 2-3 different variables and see if problem disappears. Look at the fusing assembly - is the roller torn or does it have any black buildup? Use caution!!! It gets HOT!

Try another toner also.

Feb 17, 2010 | Canon imageRUNNER 3300 All-In-One Laser...

1 Answer

I'm getting black streaks down the left side of the paper. There is plenty of toner left in the cartridge. We've vacuumed out the printer, cleaned the drum - nothing helps.


black streaks the toner cartridge is leaking from the left side which is easy to check pull the tone and look at the gears on the left side to see if toner is present. if these gears have toner on them the cartridge is leaking replace it. check the fuser for wear marks on the hot roller which is the top roller when these get worn through the outer coating they will create black streaks

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1 Answer

Black streaks on paper on samsung ml 2150 laser printer


Could you describe these marks for us please.

Are they small specks or blotches? Bad Toner Cartridge

Are they lines:
Horizontal - Transfer Roller or Charge Roller
Vertical - Bad Toner OR Bad Fuser.

Note: A bad toner cartridge can render all of the parts listed here useless. Check for build up or lines on the cartridge reflective drum. Avoid light, as with film.

If they are a mix of both, the device needs to be cleaned with a can of compressed air. You must remove the cartridge, paper tray(s, and fuser to create clear path.


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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.

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1 Answer

HP Laserjet IIIP starting printing thin vertical black line


Was this happening before you swapped toner?
Is there toner streaks on the drum? Yes? Defective.
What if you stop the printer (open cover) as it passes through the fuser to determine if image is from drum or fuser?
But really....isn't it time to move on anyway???

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1 Answer

Two dots on right side of page


if you replaced the cartridge and the streaks are still there then it's the fuser. you can try to clean the "fuser" roller with a little alcohol and your finger nail (after it's cooled down) to scratch off the toner, if it's an actual scratch on the roller you need to replace the fuser as it will pickup toner again and leave marks.

hope this helps
thanks for rating

Jan 09, 2008 | Lexmark Optra SC 1275 Laser Printer

2 Answers

2 IN. GRAY AREA DOWN SIDE PAPER


There are several things that can cause this. A worn toner cartridge and/or transfer roller can cause vertical smears, but it may also be a worn fuser assembly. The teflon coating on the fixing (heat) roller wears off, and leaves vertical streaks of varying widths on the pages. Sometimes you may see "ghost" images on the pages for the same reason. Open the back door of the printer, and hold down the exit guide on the fuser (carefull, it may be very hot). There are two long rollers, the lower one is black, the upper roller is either grey or shiny brown. That's the teflon coating. See if it's peeled or damaged. If so, replace the fuser assembly.

Feb 10, 2007 | HP LaserJet 4 plus Printer

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