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‎11-30-2019 07:32 AM

HP Recommended
Product: Laserjet Pro M227sdn
Operating System: Microsoft Windows 7 (64-bit)

My LaserJet Pro M227sdn has started printing a thick black line (margin) on my documents

1 ACCEPTED SOLUTION

Accepted Solutions

‎11-30-2019 08:06 AM

HP Recommended

If the line is a single color then you may have a bad cartridge that matches the color of the line. Other causes are a bad fuser or failing transfer belt. Is the line well bonded to the page? Can you post a sample. 

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.



View solution in original post

3 REPLIES 3

‎11-30-2019 08:06 AM

HP Recommended

If the line is a single color then you may have a bad cartridge that matches the color of the line. Other causes are a bad fuser or failing transfer belt. Is the line well bonded to the page? Can you post a sample. 

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.



‎11-30-2019 08:17 AM

HP Recommended

If you see the  thick black line no matter it's black or color document it often points at that you have a bad toner cartridge.

If so you can see a circle of toner at the same place on the surface of black toner cartridge's drum.

Another easy way to check it out is to change another black one.

There're another possibilities are fuser and transfer belt but each of them will affect all four colors so you shall see other colors show up.

‎12-15-2019 01:33 AM

HP Recommended

I changed the toner and the drum and all is well, thanks

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