Hi Walker ,
For weeks now I have been struggling with a green / cyan cast in my prints on the Epson P600 with your Cone Color Pro inks.
Due to the local Australian wild-fires then floods then Covid19 the printer has been idle for about 6 months except for a weekly nozzle print. My client - National Parks - simply had no need for orders.
2 weeks ago the National Parks finally reopened and orders came.
I print from a MAC Pro with OSX 10.13 & Mirage print - this allows me to work with fixed settings from a print library.
I could not print the quality my reference prints show. Always a tad cyanish . Endlessly checked all software , today switched to old MacBook with OSX 10.11 from which I printed with always good quality - same problem !
Then suddenly I noticed :
The Light Black in the CIS tank and the print cartridge has turned a serious shade of green.
The printer sits in my office with dimmed daylight coming in - never direct sunlight and shaded window.
I can think of only one solution:
A new Light Black cartridge and a New bottle of Light Black ink and hope I can flush the system as per instructions you emailed around in March.
I have photos but do not know how to insert in the message.