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HP Officejet Pro 6968 - alternating pink patches in anything printed with cyan ink

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HP Officejet Pro 6968
Microsoft Windows 10 (64-bit)

This has been going on for a while but, since i only use color printing for reference in production work (measurements, assembly instructions, etc.) I don't think of it often.  However, I recently needed to print white details on a light blue background.  (WHEN i print, this is a common color combo.)  When the blue drops out, leaving the pink patches, it gets very hard to see the white details.

 

The pink is in a pattern almost like wheel marks.  They're about 1/4"h x1"w set about an inch apart horizontally and vertically and staggered.  The patches are very "bandy".  (scan below)  Notice how it's even in the gray area a little?  Also, our invoices (Burgundy, Gray, and Black) print fine.

2020-08-03_145133.jpg

 

The test pages do not have this banding so i'm thinking it has to be hardware/firmware related.  I tried to go to the firmware link in one of the forum posts but, that part of HPs website is down today.  I'm running the HP Print and Scan Doctor now.

 

The printheads have been cleaned, the device restarted, the ink changed (not all in one go).  The problem continues to persist.  I've been living with it until today but i finally got fed up on another fruitless search through this forum for answers.  The only reasonable ANSWER i found was, to paraphrase, "go buy a new printer."  Is that true?  Is that HP's solution to this problem?  (I found a lot of posts were moved to private discussions so no answers were posted on the forum.)

 

HELP!

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@gssigns

 

Welcome to the HP Support Community.

 

Does this happen with copies that have blue in it too?

 

Have you tried all the steps from here: https://support.hp.com/us-en/product/hp-officejet-pro-6960-all-in-one-printer-series/8289579/model/1...

 

You can try a firmware update from here: https://support.hp.com/in-en/document/c02919168

 

Let me know if this helps.

 

If the information I've provided was helpful, give us some reinforcement by clicking the "Accept as solution" button, that'll help us and others see that we've got the answers!

 

Thanks!

Have a great day!

 

 


I am an HP Employee

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