My HP ENVY 5640 series won't print black or it's very weak.

[Stegmann43]

I have tried to clean as written, and I have used HP Print and Scan Doctor 5.1 to solve the problem. There is enougt ink, and I have further more tried with a new cartridge. Colour printing is OK. (I'm Dane, so hope You understand).

[sandytechy20]

@Stegmann43

Welcome to HP forums, I see that your printer is not printing in black.

• Did you make a copy and check if that prints fine?

Meanwhile:

Print a Print Quality Diagnostic report

1. Load U.S. letter or A4 size, unused, plain white paper into the input tray.

2. On the printer control panel, swipe the display to the left, and then touch Setup.

   The Setup menu displays.

3. Touch Reports, and then touch Print Quality Report.

   A Print Quality Diagnostic page prints.

Example of a Print Quality Diagnostic report without defects

You can refer to this HP document for more assistance:- Click here

Let me know how it goes.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.

[Stegmann43]

Hi.

I already had tried your suggestion, and I too have reinstalled the software two days ago. Now I have tried to print the diagnostic page again. The text is hardly to see, and the left colourbox is empty apart from three horizontal lines, that I also hardly can see.

[Stegmann43 · Accepted solution]

Problem solved. I tried with another black HP cartridge, but before it worked, I had to remove software and reinstall it. Thanks for help.

[A4Apollo]

Hi @Stegmann43, I am the Mr.Robot. It looks like you were interacting with @sandytechy20, but he is out of the office today, so I'll take over from here.

I appreciate your efforts for writing back to us.

I'm glad after replacing the ink cartridges your issue got resolved.

If you have any queries in future related to any HP products, you can always reach out to us.

We will try our best to help you out.

Take care,
Have a great day! 🙂