When printing blocks of blue pink lines appear

[Chris_1-20]

I have a problem when printing blocks of blue. Pink shading appears.

I have done a deep clean of the cartridge heads after replacing all three coloured cartridges I have uninstalled the printer and software and reinstalled it. On person has suggested replacing the black cartridge?

Any suggestions?

If I did need to get a black cartridge and suggestions how I request it through instant ink without jumping through so many hoops?

[TEJ1602]

@Chris_1-20, Welcome to HP Support Community!

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