My printer is printing horizontal white streaks on my documents in color and black and white.

[chandler76]

I have replaced the ink cartridges and cleaned the ink heads. The gaps are still showing up in the printed documents. I run a small business  and this is very inconvenient. Please help

[Jay_G24]

Hi @chandler76

Welcome to the HP Support Community. 

To better assist you - 

1) Does the copy print out the same way? 

2) What's the application you are trying to print from? Have you tried printing from a different application or device? 

Let's print a Print Quality Diagnostic page -

1. On the control panel, swipe down to open the Dashboard, and then touch the Setupicon.

2. Swipe up on the display, touch Reports, and then touch Print Quality Report.

Post the Print Quality Diagnostic page here so we can help you further. 

You may also refer to this document with steps to fix " Print Quality Issues" issue applicable for your printer -  Print Quality Issues

Also, try updating the printer's firmware - HP Printers - Updating or Upgrading Printer Firmware 

The printer you own can work in single-cartridge mode, wherein the printer will be able to print with one cartridge in the printer.which will help us identify if its a cartridge issue or a printhead issue 

To try single-cartridge mode follow the below steps:

remove the black ink from the printer, leave the color in and try printing 
then remove the color ink and, insert the black  in and try printing 
 

Hope this helps! Keep me posted. 

Please click “Accept as 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

[chandler76]

i have done the steos and on the diagnostic it seems like the blue ink is the only one printing lines any help?

[sandytechy20]

@chandler76

This seems to be a hardware issue.

I request you to talk to HP support.

They might have multiple options to help you with this.

1. Click on this link - https://support.hp.com/us-en/contact-hp?openCLC=true
2. Select the country.
3. Enter the serial of your device.
4. Select the country from the drop-down.
5. Click on "Show Options".
6. Fill the web-form. A case number and phone number will now populate for you.

Cheers.