HP Officejet Pro 6970 colour print issues

[Al-UK]

Since the last auto firmware upgrade on 2020-06-17, colour print smearing has been an issue.

Normal black on white is OK.

When solid colour is used, especially Blue and Greens then they come out as Blue and pink or Green and yellow ink bands across the whole page.

I have updated to latest version of drivers.

Colour cartridge levels are good and just put in new Instant ink cartridges.

Diagnostics run and Cleaned Printheads L1 thru L3, Printer Cleaner, and Alignment tests using the OJ6970 Printer Assistant.

Also run these using the EWS tools, and also the HP Printer Scan Doctor.

ANY HELP OR SUGGESTIONS AS TO  A SOLUTION GREATLY APPRECIATED.

Thanks.

Attached examples of the actual print, followed by the source file sent to the printer.

PrintedSource file

Attached is a Print Quality Report AFTER running all the diagnostics and cleaning tools.

[Al-UK]

I found this link on the forum with similar issues, but with no solution.

https://h30434.www3.hp.com/t5/Inkjet-Printing/HP-6970-Blue-printing-in-a-banner-streaks-with-red/m-p...

However, it has a useful link to a HP Support page that contains a systematic troubleshooting guide for the OJ Pro 6970.

Basically if this does not solve the issue, then its a Support call.

Spooky, but the issue i have started just 1 month after warranty ended!!!!!!

[asmita6658 · Accepted solution]

Hi @Al-UK

Welcome to the HP Support Community.  

Also, have you checked you HP Instant Ink account page? Your Instant Ink account page will have notifications if there are any issues with the account or recent cartridge shipment, it will even provide solutions on how to fix the issue. You may log in to your HP Instant Ink account page from here.

If the suggested information can't be found, please send us a private message with your Instant Ink account details or you may also respond to the private message I've sent out and I'll help you out, accordingly. Check next to your profile Name, you should see a little blue envelope, please click on it. 

Let me know. 

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