HP Officejet Pro 8500 A909g is printing but no ink on paper

[RBBL]

I have changed all  4 printer heads . HP original. The printer signal all Ok, I can hear it´s printing and works as usual without any error message or code. I have restarted both my laptop and the printer a couple of time, and also demount and reinstalled all 4 new printer-heads two times. I have also downloaded new software and drivers from HP Sweden. The printer works very well - except from not deliver any ink on the paper. I bought the new Ink-kassetts direkt from HP Sweden website.

Question: How do I do to get ink on the paper?

[Echo_Lake]

@RBBL

Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

• How is the copy quality?

Let's print the  Print Quality Diagnostics Page:

Use the following steps to print a quality diagnostics page using the printer control panel.

• 1. Load plain white paper into the input tray.
• 2. Press the Setup button.
• 3. Select the Print Report.
• 4. Select Print Quality Page.
• 5.   Press OK.

And, also Use an automated tool to clean the printhead:

Follow these steps to clean the printhead.

• 1. Load plain white paper into the input tray.
• 2. Press the Setup button.
• 3. Select Tools.
• 4. Select Clean Printhead.
• 5. Wait while the printer cleans the printhead.
• 6. A test page prints after the printhead is cleaned.

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.