Print Quality Problems HP CP2025 -- Cartridge or more serious problem?

[SFL_CP2025DN]

I would appreciate assistance in diagnosing the print quality problems with my HP CP2025DN.  As shown in test page below, the printer prints horizontal marks every 7/8" down the page.  Is this a cartridge issue or is this symptomatic of a more serious problem with the printer?  On a youtube video, I have seen an individuals indicate that the laser mechanism of HP printers may HP laser needs to be cleaned.  Printer is older but reliable, and before I invest in new cartridges, I wanted to see if others might provide guidance.  Separate and distinct issue is that the printer is hard to restart after it loses power.  The LCD panel seems to be erratic in showing strange characters or remaining dark. Interestingly, the problem does seem to clear up after several days of leaving the printer plugged in. 

Thanks for the help. 

[Treeko]

Hi @SFL_CP2025DN 

Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 

I see that you are facing cartridge issues with HP printer.

To isolate the issue, I would request you to elaborate the defect you are referring to.

Meanwhile, you can perform the steps mentioned in this link.

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!

I hope this helps.

Take care and have a good day.

Treeko

HP Support

[SFL_CP2025DN]

Thanks for this helpful document.  However, I didn't see any vent holes in my cartridges on this laser jet printer nor a command to clean the printhead.  I can and have used the "cleaning" command.  

[Nal_NR]

Hi @SFL_CP2025DN 

We are sorry that the issue is not resolved when the above troubleshooting steps were performed.

This might require one on one interaction to fix the issue

I've sent you a private message with further instructions. In order to access your private messages, click the private message icon on the upper right corner of your HP Support Community profile, next to your profile Name or simply click on this link.

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers!