HP C4280 Won't Print Black Ink - Both Black and Color are FULL

[NHWA]

My printer will not print black. The black cartridge is 60% full. The color cartridge is 50% full. Alignment pages show full color printing, and will not print in black at all. I have tried several ways to troubleshoot, including what I have read in these forums. I have tried: 

- Cleaning the print heads

- Unplugging, replugging

- Running a "partial reset" through the menu

- removing cartridges and reinstalling them

Error messages include that the scanner cannot recognize the alignment page, and the alignment page has a red triangle with an exclamation point, along with a barely visible picture that looks like it is trying to tell me something. 

I have wasted so much of my day on this. It is driving me bananas. Please help. 

[Rainbow7000]

Welcome to the HP Community @NHWA🙂

I came across your post about the printing issue and wanted to reply to help out with my suggestions. Please see the guide below to troubleshoot this issue. If the error continues afterwards, please try calling phone support to discuss replacing the printer or trading it in.

HP Photosmart C4200 All-in-One series - Missing, Faded, or Dull Colors

Hit the "Accept as Solution" if we've reached a solution, and the "thumbs up" to say thanks for my help.

Contact HP:
Step 1. Open link: www.hp.com/contacthp/
Step 2. Enter Product number or select to auto detect
Step 3. Scroll down to "Still need help? Complete the form to select your contact options"
Step 4. Scroll down and click on: HP contact options - click on Get phone number
Case number and phone number appear​