Printing Black Issue.

[heyskull]

I don't know if this is a contaminated Black Cartridge Problem.
But the Blacks I print from RGB now look like they have a Red/Magenta tinge if looked at from different angles.
I have not changed inks or materials and I am processing all my prints as a RGB.
Nothing has changed so have I some sort of cross contamination.
The only other thing to comment is all other colours are printing exactly as before and it is only dense black that has this issue.

SC

 

[heyskull]

Has anyone got any ideas why this is?

Thanks
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[qmr55]

To see if it is a contaminated cartridge or an issue like that, why not try printing a rich black in cmyk?

Try: 50 40 40 100

That usually gives me a real crisp, rich black. Also, why print in RGB?