officejet 4500 prints shadows

[koen6500]

Our officejet print shadows after changing black cartridge.

We tried:

Cleaning, alligning, new cartridges,reinstalling drivers, hard reset, ...

It only happens when printing from android devices, from pc is fine, copies are fine and test pages are fine to.

When printing only with one cartridge only black or only color everything is fine.

I read another post with the some problem. He was adviced to connact hp but he had no more warranty. But the support send him a private message to help him and escalate the problem with hp. I have the same issue can someone do this for me?

There are many people with the same problem but no solution only.

I put the other topic below

 

 

 

[koen6500]

 

[KrazyToad]

@koen6500

Welcome to HP Support Community

I understand your concerns and frustration

Since you have already performed all the required troubleshooting steps, please contact HP Support in your region for service options

1) Click on this link - www.hp.com/contacthp/ 
2) Select your product type below.
3) Enter the serial of your device. 
4) Select the country from the drop-down. 
5) Select the chat or get phone number options based on your preferences. 
6) Fill the web-form and proceed further.
 

Thank you

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.