Printing Errors or Lights & Stuck Print Jobs

Dear HP Support,

I am reaching out because I have repeatedly encountered issues with my HP OfficeJet 8120e since purchasing it.
It's unfortunate that the printer causes such difficulties in everyday use.

The first issue occurred after a firmware update: since then, the printer’s LAN port no longer works.
In addition, when I send multiple large print jobs one after another, the printer consistently throws an error. It then freezes and refuses to perform any further actions. I cannot simply cancel the stuck print job; the only way to get the printer back up and running is to unplug it and restart it. Even after restarting, the old print jobs remain stuck.

Another issue is that sometimes during printing, the printer suddenly pauses. Although "Printing" is displayed on the screen, nothing happens for five to ten minutes. In some cases, the document is only partially printed afterward.
This makes productive work difficult and is incredibly frustrating in the long run.

I have already followed the recommended steps multiple times: resetting the printer to factory settings, restarting it, and applying all the suggestions the HP Support team provided during previous contacts. Unfortunately, none of these solutions have resolved the problems.

For comparison, my previous printer from another brand worked flawlessly for over ten years without any significant issues.
In contrast, I have experienced more problems with the HP OfficeJet 8120e than with any other printer I've ever owned.

Overall, I must say that this device unfortunately does not meet my expectations.
What’s particularly frustrating is that incomplete print jobs are still counted as full pages by HP Instant Ink, even if the print job is interrupted, leading to unnecessary waste of paper and ink.

I sincerely hope a solution can be found for these issues, as I am currently very dissatisfied with the product.

Best regards