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HP LaserJet Pro M451dn

My printer has started printing with these lines along the left side of the paper and they are horizontal lines and are about an inch. I have tried cleaning. Uninstalling and reinstalling the printer. What could be causing these lines? It was printing fine and then these lines print on whatever paper I have in there.20221218_080412.jpg

I use genuine HP toner, just changed the CYAN and Black cartriges. I don't have the others to try and change them or I would of.

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

If the toners have no visible defects it could be that your fuser has a crack in one of the rollers. The only fix is to either replace the rollers, replace the fuser or replace the printer. Do you know the page count of your printer? The fusers are rated to a maximum life of 50K pages, we typically see this issue starting at 39K pages.

If you find the information provided useful or solves your problems, help other users find the solution easier by marking my post as an accepted solution. Clicking "yes" on "was this reply helpful" also increases the chances that this solution will help others.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



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2 REPLIES 2
HP Recommended

If the toners have no visible defects it could be that your fuser has a crack in one of the rollers. The only fix is to either replace the rollers, replace the fuser or replace the printer. Do you know the page count of your printer? The fusers are rated to a maximum life of 50K pages, we typically see this issue starting at 39K pages.

If you find the information provided useful or solves your problems, help other users find the solution easier by marking my post as an accepted solution. Clicking "yes" on "was this reply helpful" also increases the chances that this solution will help others.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



HP Recommended

That is what I was thinking it was. The printer is very old and I use it a lot. I don't know the exact number of pritns but I use it for my printing business. Thank you.

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