A potential problem with the HP Neverstop Laser 1000w printer

[Dave922]

Hello!

Recently I bought an HP Neverstop Laser 1000w. Unfortunately, print quality looks pretty poor with this device. See the attached example.

I also tried to print the test page.

Uneven horizontal lines are visible on test patterns.

Considering the fact that my printer is brand new, is this a normal result for this specific devise?

Thank you!

[Rainbow23]

Hi @Dave922,

Welcome to HP Support Community. 
Thank you for posting your query, I will be glad to help you.

I see that you are facing print quality issues with your HP Neverstop Laser 1000w printer.

I suggest that you follow the steps from this document to resolve this issue. (Click on the word document to open the web page).

I hope this helps.
Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[Dave922]

Thanks for those tips! I tried to follow them but unfortunately the problem persisted.

Step 1: Check the paper

I use a good quality paper.

Step 2: Check the paper guides

The paper guides are adequately set up.

Step 3: Check the toner level

The printer is brand new.

Step 4: Check the print settings

I didn't find a specific setting for print quality. These are all the setting I can access to:

Does Paper type have an effect on print quality?

Step 5: Inspect the imaging drum

The drum just like the printer is brand new, it has no visual defects. I removed it and gave a good shake before reinstalling.

Step 6: Update the printer firmware

I upgraded to the latest version (20210413) available.

Step 7: Adjust the print density

I wasn't able to find such setting.

I tried to print the following picture:

Here is the result.

As you can clearly see, the black part is perfect and does not have any defects, while the grey areas consist of aforementioned uneven lines. If these lines were somehow caused by the imaging drum, they would also be visible in the dark area. Perhaps these lines are normal for the specific printer?