Question about Brother MFC-8440 All-In-One Laser Printer

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Just replace the drum on my MFC8890dw and I am getting black marks down the left side of the paper that resemble the gear. I have cleaned everything I know to clean. What now?

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Did you changed only the drum or the drum unit.This problem ound like damaged PCR(primary charge roller wich is above the drum) or damaged fuser teflon(One of the rollers in the fuser asemblly)Check the both things for defects.Please reaplay wath you have found.Thanky you for using fixya!!!!

Posted on Nov 13, 2010

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Posted on Jan 02, 2017

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Smudge marks on left side of paper?


If you use new original toner, this should not happen, nevertheless, clean the drum first.

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My Brother MFC-7420 Printer always prints black lines and splotches down the left side of my paper. This happens whether I'm scanning or printing from my PC. When I looked at my drum, it appears a


If you are seeing vertical streaks/black lines your primary corona wire is dirty and or the fax scanner may be dirty.
1)To clean the corona wire you take the drum unit and toner cartridge and place it on disposable paper to avoid spilling.
2) Clean the primary corona wire inside the drum unit by sliding the blue tab from right to left several times.
3) Return the blue tab and snap it into the home position.
4) Reinstall the drum unit and toner cartridge.
5) Close the front cover.
Caution: if you do not return the blue tab to the home position it may repeat the black lines.

Nov 29, 2012 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

I have just collected a second hand HP 1600 printer and there is a 2cm green vertical line down the left side of the page and a 3mm line down the centre and 2 thin lines down the right side, help!


Hi,
Dots, Lines and smudges on the printouts are due to deteriorating cartridges and cleaning the green drum of the cartridge may help temporarily. Take out the cartridge and gently clean the roller/ green drum with a dry, soft, lint-free cloth wiping off the toner dots marks/ lines. (corresponding to the location where you are having a green line on the paper)
Also, make sure that the visible inside of the printer and the Black belt are clean and there is no spilled toner inside, which sometimes results in dots.
Moreover, streaks (thicker lines) and dots etc indicate faulty PCR Roller which is located behind the green drum inside the cartridge. Replace the Cartridge or get the PCR Roller changed by a professional.

Hope it helps! Good Luck! Thanks for using Fixya!
CreativeTECH

Jun 16, 2011 | HP LaserJet 1600 Printer

1 Answer

When making copies one edge of the paper has three dark spots. Look as if they could possibly be roller marks? Something need cleaned? Thanks


hello

probably right, remove your toner drum and clean it with tissue paper or smooth cloth, this dots happen when your roller drum has some spot on it due to ink powder and also slide the tiny button on the fuser kit to clean it.


thanks

Apr 14, 2011 | Brother MFC8890DW AllInOne Laser Printer

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 marks on the side


It means you need to change out your drum.

Oct 27, 2008 | Dell 1700 Laser Printer

1 Answer

Printer leaves black spots on paper


The black spots mean you either need a new imaging drum, transfer kit or fuser. You'll have to print some stuff and try to catch where the black marks are appearing. Try this method (it's called a Half-self test)

Load 2 -3 sheets of letter paper in tray one (manual feed) and remove paper from the rest of the trays.
From the information menu, request a demo page
The MOMENT the tail end of the paper disappears into the printer, open the right door. Open the front doors and release the levers for the imaging drum and the transfer drum. Carefully remove both pieces and examine your paper.



You should find the paper partway on the transfer belt but not in the fuser. If you see black marks here, start with the imaging drum. Open the shutter that covers the sea green shiny roller and look for marks on the drum (you'll see build up on the edges, that's normal, you should not see any scratches, pockmarks or toner on the center of the drum). If it looks clear, take a look at the transfer drum for marks or cuts on it's surface. (note: the transfer drum can be cleaned off with a dry lint free cloth, do not touch the shiny sea green roller of the image drum)

If everything looks good there, then likely the black marks are coming from the fuser. Let the printer sit, turned off for about half an hour to allow the fuser to cool. You can then remove the fuser and look at the rollers to see if there is any build up or damage there.

If you are not seeing any obvious issues with any of these parts, then start with the imaging drum. If you know that any of these parts have never been changed, then change them as they do have a limit to how many pages and how much time they can be used for.

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1 Answer

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Remove the black drum and see if see the line on the drum that you see on the paper---if it is replace the drum unit.. Good Luck

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1 Answer

Black bullets down left side of paper


inspect the pc drum, if there is no dots, then its ok, also inspect fusing unit rollers and transfer belt for dots and clean laser glass.

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