My printer only proints yellow and black. the supply level is fine.

[__HELP__]

HP ENVY 7800 All-in-on printer. MAC OS Sonoma 14.5  n only prints yellow and back.  I have printed files from Adobe LightRoom Cassic and from Previeww.  I have also copied a color document using the copier function and it only printes yellow and black.  I have cleaned the print cartridge three time and I have also cleaned the printhead (which I think is the same function since it prints out the same Print Quality Diagnostic document.   How do I fix this tonightPrinting results from Adobe Lightroom ClassicCopied document on right - result on LeftPrint Quality Diagnostic doucment

[A_Gayathri]

Hi @__HELP__ ,

Welcome to The HP Support Community.  

Thank you for posting your query, I will be glad to help you.

I understand you're experiencing a printing issue where your HP ENVY Photo 7858 printer is only printing in yellow and black, despite the ink levels being fine and performing cleaning operations.

Here are a few steps you can take to try and resolve this issue:

• Check Ink Cartridges: Even though the supply level shows fine, remove the color ink cartridges (not just the black) and inspect them. Make sure they are properly seated and securely inserted. Sometimes, reseating the cartridges can help establish proper contact.
• Print Quality Diagnostic Page: Since you've already performed cleaning operations, ensure that the Print Quality Diagnostic page shows all colors properly. If it still only shows yellow and black, there may be an issue with the printer's color printhead or ink delivery system.
• Update Printer Firmware: Ensure your printer's firmware is up to date. Sometimes, firmware updates can fix bugs related to print quality and functionality. Update the firmware on an HP printer
• Reset the Printer: Try resetting the printer to its factory default settings. This can sometimes resolve software-related issues that affect printing.
• Check for Driver Issues: Make sure your printer drivers on your Mac are up to date. Sometimes outdated drivers can cause printing problems.

Refer to this document: HP ENVY Photo 7100, 7800 printers - Color or black ink not printing, other print quality issues

I hope this helps. 

Take care and have a good day.

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