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Level 2
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Solved!

Black Streaks when printing from computer.

HP Recommended
Color Laserjet Pro MFP M337dw
macOS 10.15 Catalina

When printing, the print job comes out with black streaks!

What is causing this to happen?

How can it be fixed?

6 REPLIES 6
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Level 2
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Message 2 of 7
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HP Recommended

Maybe can be fixed. Tell me what printer you using and take picture of configuration page or any page where you see strips. Also, check supplay status and post here. 

I am not HP emplye.
Say thanks by clicking the Kudos thumb up in the post.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.
If my post resolve your problem please mark it as an Accepted Solution
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HP Recommended

Printer: Color Laser Jet Pro MFP M377dw

 

Screen Shot 2020-09-17 at 4.57.29 pm.png

 

Screen Shot 2020-09-17 at 4.54.14 pm.png

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StreaksStreaksLevelsLevels

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Level 12
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HP Recommended

As the defect appears to be strictly black, it is very likely that your black cartridge is bad. Remove the cartridge and look at the blue/green drum on the bottom of the cartridge. If it has lines and debris that match your print out then try a different black cartridge.

If you find the information provided useful or solves your problems, help other users find the solution easier by giving kudos and marking my post as an accepted solution.
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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Thanks Repairatrooper, I'll give it a go and get back to you!

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My resolve is going to be to buy new printing cartridges!

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