HP Color Laser 150nw printing vertical lines

[Mo8890]

Hello everybody,

my printer recently started printing 2 white vertical lines next to each other as you can see in the attached photos. Any idea how to solve the problem? My printer has 3 months of warranty left but I cant find any email or phone number to contact here in Germany. Only the virtual agent, which is of no help. 
So you could help me by either providing a solution I can try myself or some adress I can contact.

thanks in advance!

[Mo8890]

[sandytechy20 · Accepted solution]

@Mo8890

Welcome to the HP support community.

• Inspect the toner cartridge & OPC / ITB UNIT If scratches are present on the surface of the OPC / ITB UNIT.

  Please replace the new toner cartridge.

• Inspect the heat roller. If scratches are present on the surface of the heat roller, replace the fuser.

• LSU window cleaning > OPC drum cleaning > ITB( Intermediate transfer belt ) cleaning > toner small part cleaning

• If horizontal scratches are present on the fuser heat roller, replace the fuser.

• ITB wrap jam in high humidity condition: If there exists a paper between the fuser and the intermediate transfer belt(ITB), remove the paper.

You can refer this HP document for more assistance:- Click here

I hope that helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.