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HP Recommended
Laser Jet 400 m451
macOS 10.15 Catalina

My printer is having an issue where the first page prints normally and the remaining pages all have what I would call roller lines down the page. I have tried the cleaning processes available in the printer but they do not have an impact. Any other ideas?

2 REPLIES 2
HP Recommended

It sounds like you may have fusing unit problems.  Usually, when a hot roller is worn (top roller in the fusing unit), it will leave behind tracking marks on the second, third, fourth page, etc.   You might try removing the fusing unit and inspecting it with a flashlight to see if there are worn areas on the top roller.  If you're not comfortable with disassembly of the printer, have a technician come in to remove the unit.

HP Recommended

Thanks I will take a look this weekend and post the results back here when I get it sorted.

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