Ink levels not updating when I replaced black cartridge on 4120e printer

[LaurenA2024]

I have replaced the black ink cartridge with 305xl cartridge and the level in the screen isn't working. Printing is also bad quality and has lines. I would be grateful if you could let me know how to resolve this. 

[Nal_NR]

Hi @LaurenA2024,

Welcome to the HP Support Community. 

I'd be happy to help you! 

I understand that you are facing issues with the print quality issue. 

Perform the following tasks in the order given. Use the printer after each task to see if the issue is resolved.

Clean the printhead (HP Smart app)

• Use the HP Smart app to clean the printhead and fix many print quality issues including incorrect colors, streaks, and faded printouts.
• Load plain white paper into the tray.
• Open the HP Smart app, and then click the image of your printer to open the settings and management tools.
• Under Tools, click Print Quality Tools, and then select Clean Printhead or Clean.
• A Cleaning printhead message displays, and a test page prints.

EXAMPLE OF TEST PAGE PRINTOUTS

• Examine the print quality on the test page.
• If the print quality is acceptable, you are done troubleshooting.
• If the print quality is unacceptable, touch Yes in the HP Smart app to perform a second-level and third-level cleaning, which are more thorough and take a few extra minutes to complete.
• NOTE: Printheads that are badly clogged might require another printhead cleaning cycle. Wait at least 30 minutes before cleaning the printhead again.

Click here for the remaining steps

Update the firmware. Click here

If you are getting a cartridge error. Clcik here

Hope this helps! Keep me posted for further assistance.

 Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.