HP Envy 7645 printing in green instead of black

[garyprin]

Printer printing in green instead of black.  Using Mac OS High Sierra.  Updated firmware, cleaned repeatedly through level 3. Installed new genuine HP cartridges, no change.   If I take out color cartridge pages print in black just fine.  As soon as color cartridge is placed back in it starts printing in green regardless of whether I select black only.

Any suggestions.

[Jeet_singh · Accepted solution]

@garyprin,

Thanks for engaging in HP support Forums! This is a wonderful location to converse with the community, get assistance and find tips! I understand you are having issues while printing from your HP Envy printer. Don't worry we'll work together to help you find a solution.

To provide you with an accurate solution, I'll need a few more details:

Have you recently made any changes on the printer before the issue started?

Did it happen soon after replacing the ink cartridges? What happens when you try to use old set of ink cartridges?

Have you tried to print the print quality test diagnostic report? If so, could you please share the screenshot

In the meantime, let's try these steps here: 

Perform a Hard reset on the printer and make sure that the printer is connected directly to the wall outlet and not to the surge protector.

With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.

Remove USB cable, if present.

Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.

Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord and then plug back the power cord to the printer.

Turn on the printer and wait till warm-up period finishes and the printer is idle.

Let’s first try and make a “photocopy” to determine whether the issue is with the printer or not. Place a document on the scanner glass and choose “Copy” option. If the printer is making a good copy, then the printer hardware is fine.

Alternatively, I would suggest you follow the steps suggested in the support document for - HP DeskJet, ENVY, OfficeJet Printers - Black Ink Not Printing and other Print Quality Issues

Please let me know if this resolves the issue, or if you require further assistance!

Eagerly waiting for your response!

I hope you have a good day ahead,

And Feel free to ask your queries as this forum has some of the best people in the world available and ready to help.

Regards,

[garyprin]

Jeet,

  Thank you so much for the rapid response.  The hard reset, unplugging the printer, waiting and then plugging it back in did the trick.  Printing working perfect again.

[Jeet_singh]

@garyprin,

Thank you for the update,
I appreciate your time and efforts, 

I'm glad I could contribute towards resolving the issue and finding the solution you were looking for.
Thanks for taking the time to let the community know about the solution.

You've been great to work with and it has been a genuine pleasure interacting with you.
I hope both you and your product works great and remain healthy for a long time 😉 

Take care now and do have a fabulous week ahead. 🙂
Regards,