HP Officejet Pro 6835- black ink not printing

[Louise0002]

HP Office Jet Pro 6835 will not print in black ink.  I have tried all the diagnostic options available from HP.  This problem started when I installed a new black print cartridge from HP Instant Ink.  I can print in any color, but black.  On the test page the colors show and gray will also print, but not black.  I have not uninstalled and installed again.  

[Riddle_Decipher]

@Louise0002 Don't you worry, we got you covered, here's all you need to do, to fix this issue:

I recommend you try the copier as a stand-alone device without a computer and check if that works in color,:

• If it doesn't work, this could be a hardware issue,
• however, if the copier works and yet, the print out from the computer doesn't work in color, you can try the below steps:

• Press "Windows key" + "r" to get the "Run" window.
• Type "services.msc" to get Services - Go to "Print spooler" - Right-click and "Stop" the service.
• Now again open "Run" - Type "spool" and ok - Go to PRINTERS folder - delete everything in that folder.
• Go to services again - Start the print spooler.
• Now check for issue resolution.
• If the issue persists, also try clean installing the printer drivers. Here are the steps:
• First, unplug the USB cable from the printer if present. 
• Go to Control panel - Programs and feature - Select all the HP printer entries and uninstall them.
• Now go to Control panel - Devices and printer - Select all the printer entries and remove the device.
• Press the "windows key" + "r" to get the "Run" window open - Type "printui.exe /s" (There is a space between .exe & /) and press enter.
• Under print server properties, go to drivers - remove any entry there as well.
• Again, go to the Run window, type - "c:/programdata" - Go to the Hewlett Packard folder, remove any printer related folders & files.
• Restart your computer.

Then, use this link to access the HP website, find the drivers compatible with your windows and install it: CLICK HERE

FOR DETAILS & FURTHER INSTRUCTIONS, USE THIS LINK: CLICK HERE

(By the end of this article all the issues should be resolved)

P.S: Welcome to HP Community 😉

Let me know how that pans out,

If you feel I was helpful, simply click on Accept as Solution to help the community grow,

That said, I will have someone follow-up on this to ensure you've been helped,

Just in case you don't get back to us, 

have a good day, ahead.