Pixma iP4700 Yellow Prints Green

[baumgrenze]

Yesterday I refilled the magenta, cyan, and pigment black cartridges in my iP4700

Here is what I observe:

The nozzle check prints a green band where yellow should be printed.

The faintest of the 3 bands that print magenta printed with some horizontal striping. This was alsotrue after the last time I replenished ink.

I realize that cyan and yellow mixed would result in green. Could excess cyan be being delivered to the print head?

Does the cyan cartridge needs to be replaced?

I have used Hobbicolors ink for years successfully.

I gave up trying to get my image to post full width

thanks
baumgrenze