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ColoradoKim
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Solved!

Dark diagonal bands suddenly printing across everything I print out?

LaserJet Pro 400 M401n
macOS 10.14 Mojave

Large diagonal bands are suddenly printing a cross everything I print out. I have never seen anything like this in 20 years of computer printing. I am an online seller and need to print shipping labels and ship on time every day so this is very urgent, please help me!

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Solved!

Dark diagonal bands suddenly printing across everything I print out?

Have you tried another toner cartridge? Can you post a sample of what you are getting?

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ColoradoKim
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Solved!

Dark diagonal bands suddenly printing across everything I print out?

Thank you, Repairatrooper, this seems to have solved things ! What I am dismayed about is that the HP Support Tech quickly told me it was my fuser and that I needed a new printer.  This one is less than 5 yrs old with only moderate home use. Thank you very much for your help ! 

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