Print Quality - Blue printing pink lines

[CityBoySE1]

Printing anything blue gives a stripy blue and pink lined result. I have run the self clean utility up to the third level at least twice, use genuine HP cartridges, just replaced all 4 so they are all full. Is there anything I can do to clean the printheads manually as there is obviously still a problem and the printer is not useful for printing anything that needs blue in it. 

[sandytechy20]

@CityBoySE1

Welcome to HP support community.

Make sure the ink cartridges are properly vented and seated correctly

1. Turn on the printer, if it is not already turned on.

2. Open the ink cartridge access door.

   The carriage moves to the center of the printer.

   

3. Wait until the carriage stops moving before you continue.

4. Press the tab inward on the front of the old ink cartridge to release it, and then pull up on the ink cartridge to remove it from the slot.

   

5. Examine the vent area above the HP logo on the top of the ink cartridge.

   

6. If the ink cartridge still has the orange pull-tab attached, pull to remove it.

   

7. If the vent is clogged, use a straight pin to gently remove excess adhesive from the vent.

8. 1. 

      Clogged vent

   2. With a straight pin, gently remove excess adhesive from the vent

   3. Unclogged vent

9. Turn the ink cartridge so that the ink cartridge contacts face downward, and then match the label color with the color dot on the carriage.

10. Slide the ink cartridge into its slot, and then gently press the ink cartridge down until it snaps into place.

    

11. Repeat these steps to inspect the vents on each of the ink cartridges.

12. Make sure each ink cartridge is firmly installed in its slot. Run your finger along the top of the ink cartridges to feel for any that are protruding, and if any are, press down firmly until each ink cartridge snaps into place.

13. Close the ink cartridge access door.

    

You can refer this HP document for more assistance:- Click here

Let me know how it goes.
To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.

[CityBoySE1]

I have tried all of this and nothing has helped. The print heads are obviously blocked and need rinsing but they cannot be accessed which is not good design. It will cost a lot and involve a real hassle to have it serviced so I have just bought a new one and I expect the old one, which has nothing wrong with it other than clogged print heads, will now just end up in landfill which is appalling. Why don't you make the heads accessible so they can be cleaned?

[sandytechy20]

@CityBoySE1

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.

I hope that helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers