As many others, I have a HP Photosmart 6520 that does not print black. PDF and Word documents come out very light blue/gray. When I print the Print Quality Diagnostic report, the lettering is black, but the "Black" box is all white, while the rest of the colors have the three shades in each. I have followed all of the previous instructions:
1. Clean printhead
2. Align Cartridges
3. Reboot printer
4. Clean cartridge vent
What is my next step, besides throw it out the window and buy another printer?
Please reach out to 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!
And, Welcome to the HP Support Community.
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
Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".