HP OfficeJet Pro 6978 Cyan not printing since intallation of new cartriges

[dragonfly536]

My printer has stopped printing in cyan color at all. I have tried  multiple test pages and in each case, it is apparent that the cyan is not working. I can print red, yellow and black; but unable to produce gray or green for example.  Blue shows as pink or not at all.  I have installed all new ink cartridges today, and have watched them quickly deplete by running diagnostic page after page. I have performed the "clean printhead" tool multiple times.....  Nothing seems to work, and I have nearly shot thru half the ink trying to work through this.  This problem was occurring somewhat before (however my ink cartridge WAS low...and I was unable to find due to all this COVID stuff..) however after replacing the new ink cartridges it will not print cyan at all......  could it be this cartridge?...it appears to be "wet" at the blue dot on the cartridge.....

I am very disappointed ...it is 3 years old....but honestly gets little use in my home..and much less for color printing.  Despite it's "like new" condition, it is not worth trying to pay for a repair....... however if I cannot resolve this ..... I can almost guarantee any replacement printer I buy will NOT be an HP ..although it has served me for three years.....  but again... I say........it does not get that much use!!!  and I might just as well buy a cheapie throw away printer....aggravated....

(32)

[MWilly]

I am having the exact same issue as well. My 6978 is printing the Cyan with streaks and therefore I am unable to print the alignment page. 

[Jay_G24]

Hi @dragonfly536,

If you have already performed the steps from the document Black or Color Ink Not Printing, Other Print Quality Issues and the issue persists, it could be a hardware failure.

Please reach out to HP Support in your region regarding the service options for your printer.

If you are having trouble navigating through the above options, it's most likely because the device is out of warranty. If yes? please send me a private message with the region you are contacting us from. Check next to your profile Name, you should see a little blue envelope, please click on it. 

Hope this helps!

And, Welcome to the HP Support Community. 

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