HP envy 7640 prints blank pages and HP Smart does not activate, only shows blank screen

[ChristianRoy]

HP envy 7640 prints only blank pages and following instructions to fix it only leads to HP Smart which does not activate when I answer the prompt, only showing blank screen: a dead end all promblemshooting leads back to.

[Nal_NR]

Hi @ChristianRoy,

Welcome to the HP Support Community. 

I'd like to help!

Let me ask you a few questions in order to assist you better.

Did you make any changes to your printer?

Does the issue persist when you make a copy from the printer?

Have you tried printing from a different application?

Have you tried printing using a different ink cartridge?

Excellent description and a great diagnosis done. It is greatly appreciated.

Let's continue with the troubleshooting now.

Update the printer firmware and check if it helps.

Replace low, empty or faulty ink cartridges on your printer.

If the copy works fine uninstall the printer software from the root level on your PC and install the full feature printer software.

In Windows, search for and open Programs and Features. 
Select your HP printer. 
Select Uninstall. 
In Windows, search for and open Devices and Printers. 
In the Devices and Printers window look for your HP Printer. If you see it listed, right-click on it and choose "Delete" or "Remove Device.” 
Open up the run command with the "Windows Key + R" key combo. 
Type printui.exe /s and click OK. 
Click on Drivers tab. 
Look for HP Printer driver. If you see it click on it and click remove at the bottom. 
Select OK. 
Select Apply and OK on the Print Server Properties windows. 
Close Devices and Printers. 

Update the full feature printer software using this link

Refer this article to further troubleshoot printer printing blank pages issues. Click Here

Let me know if this helps!

Have a beautiful day ahead!

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