HP Officejet Pro 8600 copies the right colors but prints the wrong colors

[RustyNC]

Copier works correctly; printer does not. My copier reproduces all colors accurately, but the printer prints the colors wrong. The Officejet's internal Print Quality Diagnostic Page has the same discoloration issues as printing a test page pattern. Cyan prints a royal blue, magenta seems accurate, and yellow prints gold. When I copy a document with different colors, the copier "prints" them flawlessly, matching each color properly. So, whatever sends signals to the printheads from the computer has the same incorrect results as printing a Print Quality Diagnostic Page from the Officejet's menu but does NOT lead to incorrect color matching when using the Officejet's copying function. I have tried every troubleshooting and diagnostic tool I've found. Other than the discoloration of the print function, the alignment and print quality are just fine. I have reset to factory settings, etc.  Please help.

Thanks, Rusty

Product model number: CM749A

Firmware Version: CLP1CN1545AR

[Flower_Bud · Accepted solution]

Hi @RustyNC,

Welcome to HP Forums,

This is a great place to get support, find answers and tips,

Thank you for posting your query, I'll be more than glad to help you out 🙂

As I understand, the printer is not printing right colors but it copies fine.

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

When was the last time it worked fine?

Did you make any hardware/software changes? 

Let's try these troubleshooting steps: 

Step 1: Reset the printer

To reset the printer, disconnect the printer from the power source, and then reconnect it.

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

2. Wait until the printer is idle and silent before you continue.

3. With the printer turned on, disconnect the power cord from the rear of the printer.

4. Unplug the power cord from the wall outlet.

5. Wait at least 60 seconds.

6. Plug the power cord back into the wall outlet.

      NOTE:

   HP recommends connecting the printer power cord directly to the wall outlet.

7. Reconnect the power cord to the rear of the printer.

8. Turn on the printer, if it does not automatically turn on.

   The printer might go through a warm-up period. The printer lights might flash, and the carriage might move.

9. Wait until the warm-up period finishes and your printer is idle and silent before you proceed.

Step 3: Allow automatic servicing to complete

Step 5: Check the print settings

Step 6: Update the printer firmware​​​​​​​

Step 9: Print a Print Quality Diagnostics report​​​​​​​

Step 11: Align the printhead​​​​​​​

Step 13: Clean the printhead​​​​​​​

Click here to follow above steps

Keep me posted!

Cheers 🙂