My OfficeJet Pro 7740 has stopped printing in color although all inks are close to full.

[Louie2020]

My OfficeJet Pro 7740 has stopped printing in color. This is running off a Mac Machine (Catalina 10.15.5)

All Ink supply levels are high or close to full. As far as I know all drivers and associated software are most current. However when using Firmware Updater I get an error message: "This Firmware Updater does not contain upgrades for your device."

[Kumar0307]

@Louie2020, Welcome to the HP Support Community!

It seems like the printer firmware is up to date. Let us try these steps to resolve this issue:

Try making a standalone copy in color and check if that works. By this, we can conclude if this is a hardware or a driver issue.

Clean the printhead

1. On the printer control panel, swipe down to open the Dashboard, and then touch the Setup icon .

2. Swipe up on the display, and then touch Printer Maintenance.

3. Touch Clean Printhead, and then touch Continue.

4. If the print quality is unacceptable, touch Clean Again to continue the next level of cleaning. Repeat these steps for the third cleaning stage, if necessary.

   NOTE: If the printhead is badly clogged, it might require another cleaning cycle. If so, wait 30 minutes before you perform all three levels of cleaning again.

Print a Print Quality Diagnostic Page, and then evaluate the results.

1. Load plain white paper in the input tray.

2. On the printer control panel, swipe down to open the Dashboard, and then touch the Setup icon .

3. Swipe up on the display, touch Reports, and then touch Print Quality Report.

4. Check for color.

For more info on resolving this issue, refer to - Color or Black Ink is Not Printing

Hope this helps! Keep me posted. 

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