Question about Brother HL 5250DN Laser Printer

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When printing out there are black marks on the side of the pages

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  • 241 Answers

The black marks are most likely from a worn image drum. I would check the image drum (the unit that the toner fits into) for wear marks. If worn i would suggest to replace it. The Brother part is DR-250 and is available at most office supply stores.

Posted on Sep 02, 2010

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Posted on Jan 02, 2017

Joed911
  • 4338 Answers

SOURCE: 2430 printing 1/2 inch marks down left side of page

Did you change the Toner cartridge? If that did not fix it :
Then the Fuser needs replacing. If you take the Fuser out from the rear, and rotate the drum in it, you will see the marks. You can try to clean it but experience shows that you will have to replace it.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

Posted on Oct 13, 2008

  • 30 Answers

SOURCE: Black streaks through pages

There can be some reasons:
1. The Fuser is too cold, so toner was not fixed
2. Image Transfer Belt is defect or dirty

Greetings from Germany

Posted on Mar 20, 2009

  • 1684 Answers

SOURCE: Printer making marks down the left hand side of every page

hello,

This sounds like the photoconductor units for both black and blue need to e replaced. Open the front of the printer like you are changing toner cartridges. On the front door parts that opens to you there will e four pieces, 1 for each color. Look at the one with blue on it and the one with black and look on the ends of these, they are the photoconductor units. I bet both of the colors have worn sections compared tothe magenta and yellow ones. The replacement part number is C53030X and you will need 2 of these. They have a life span just like toner and have to be replaced too.

I hope this helps,

Buddy
Corporate Computer
Over 21 years of PC and printer support/repair

Posted on Jun 18, 2009

Testimonial: "Spot on... solved the problem"

sitehr
  • 94 Answers

SOURCE: I'm getting black smudge marks on copies. After

open priter case and clean the caterigde properly,

Posted on Aug 11, 2009

SOURCE: Our OKI is printing 3 black marks down the right

Hi,

The black marks normally comes from a worn fusing unit. in most printer nowadays, you buy a maintenance kit that comprises of roller, pickup rollers, fusing unit and drum. after changing those items mentioned above, you should correct the 3 black marks on your printouts.

Posted on Feb 25, 2010

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Printer making marks down the left hand side of every page


hello,

This sounds like the photoconductor units for both black and blue need to e replaced. Open the front of the printer like you are changing toner cartridges. On the front door parts that opens to you there will e four pieces, 1 for each color. Look at the one with blue on it and the one with black and look on the ends of these, they are the photoconductor units. I bet both of the colors have worn sections compared tothe magenta and yellow ones. The replacement part number is C53030X and you will need 2 of these. They have a life span just like toner and have to be replaced too.

I hope this helps,

Buddy
Corporate Computer
Over 21 years of PC and printer support/repair

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It may be the fuser. Take it out and inspect the roller on it:

  1. Switch off the device, disconnect the mains plug and wait for 30 minutes before continuing.
  2. Ensure that the bypass tray is closed, or you will not be able to open the front cover.
  3. Open the front cover by pressing the release buttons as shown.
  4. Pull the front cover down towards you.
  5. Disconnect the green plug - squeeze the sides of the plug and pull.
  6. Push the left and right levers outward to unlock the unit.
  7. Pull the unit towards you as shown and lift it clear of the device.
  8. Check the roller for wear marks, If so replace it.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
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