Test print with Print Doctor is solid black for one-fourth of the page

[kb2019]

I have a Photosmart C4480 connected to my Dell Inspiron laptop with Windows 10.  I have to go through HP Print and Scan Doctor every time I want to print (which I've gotten used to), however just recently when printing the test page while in Print Doctor, it no longer prints out the multi-colored test page, but it prints only solid black which takes up one-fourth of the entire page.  This is causing me to run through ink at 3 times the rate I typically have in the past.  Any ideas of what is causing the black solid when printing test page in HP Print Doctor.  I'm not aware of anything that I did to change the process.

[Jay_G24]

Hi @kb2019,

I'd like to help!

To better assist you - 

1) Are you able to make color copies?

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

While you respond to that, let's print a Print Quality Diagnostic page -

1. Load letter, A4, or Legal unused plain white paper into the input tray.

2. Press and hold the Cancel () button and then press the Start Copy Color () button.

   The product prints a self-test report, which might indicate the source of the printing problem.

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

You may also refer to this document with steps to fix the " 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 

Hope this helps! Keep me posted. 

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!

[kb2019]

I am not sure exactly what changed, but I was able to print several documents today without incident.  I did disconnect the power cord and had it restart when it wouldn’t print initially.  But it looks like I am good to go.  Thank you for your assistance!

[Jay_G24]

I am glad the issue is resolved.

 If you need further assistance feel free to reach out to us.

Have a great day ahead!

Please click “Accepted Solution” on my public post 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!