printer works, all stats good, but is not printing MAGENTA color

[MILLERGIGI]

HP Envy 7645 is not printing MAGENTA.  All reports from testing are good except the color print.

[Max3Aj]

@MILLERGIGI, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
I understand your HP Envy 7645 is not printing the magenta color, even though all test reports look good. Let’s walk through some steps to resolve this issue.

Check Ink Levels

Even if the printer reports good stats, it's worth manually checking the ink levels:

• On the printer control panel, go to Settings > Ink Levels.
• Ensure the magenta cartridge is not low or empty.

Run a Print Quality Diagnostic Report

This helps identify if magenta is missing from the printout:

• From the printer control panel, go to Setup > Tools > Print Quality Report.
• Look at the magenta blocks—if they’re missing or streaked, continue with the next steps.

Clean the Printhead

Ink clogs are a common cause of missing colors:

• On the printer, go to Setup > Tools > Clean Printhead.
• Run the cleaning cycle up to 2–3 times if needed.
• Print another test page to check improvement.

Check Cartridge Venting

Sometimes, the cartridge vent may be clogged:

• Remove the magenta cartridge.
• Check the vent area (small hole on top) if clogged, gently clean it with a pin.
• Reinstall the cartridge securely.

Try a Different Cartridge

If cleaning doesn’t help, try replacing the magenta cartridge with a new genuine HP cartridge. Non-HP or refilled cartridges can sometimes cause color issues.

Update Printer Firmware

Outdated firmware can affect print quality:

• Visit the HP Software and Driver Downloads page and enter your printer model.
• Download and install the latest firmware for your HP Envy 7645.

Align the Printhead

After replacing or cleaning cartridges:

• Go to Setup > Tools > Align Printer. 

You may refer to this document - HP DeskJet, ENVY, OfficeJet Printers - Black or color ink not printing, other print quality issues |...

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Select "Yes" on the bottom left to say “Thanks” for helping! 

Max3Aj

HP Support