printing problems

[ranieriandrea]

Hello
 
I have an HP Officejet 4620 and it's been a few months now that black ink printing hasn't been going well. I have tried to replace the cartridge several times but the problem persists.
I have cleaned the head both level 1 and level 2 but the problem remains.
With color cartridges it works well with black no.
Even in the summary printout the colors are clearly visible, black is instead dashed or interrupted by white lines from right to left.
What can I do?
thanks

[Jay_G24]

Hi @ranieriandrea

Welcome to the HP Support Community. 

If you have already performed the steps from the document Black Ink Not Printing and other Print Quality Issues and the issue persists, it could be a hardware failure.

Please reach out to the HP Support in your region regarding the service options for your printer.

If you are having trouble navigating through the above options, it's most likely because the device is out of warranty. If yes? please send me a private message with the region you are contacting us from. Check next to your profile name, you should see a little blue envelope, please click on it. 

Hope this helps!

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!

Have a great day!