Thanks for the update. I'm glad to hear your output issue is resolved, but please be aware we always instruct for ink bottles to be shaken before filling or refilling carts, and regularly agitating ink cartridges to maintain in-suspension pigment. Please refer to your cartridge instructions for this and other important information.
I looked up your order history and see you purchased Piezography Carbon inks and 3800 refill carts. I see you received the inks on 12/9, so after being agitated during shipping, wouldn't have had time to settle in just two weeks- especially not to the severity you report. If you are using Warm-Neutral inks, did you order from us under a different name/account, or did you get the WN inks somewhere other than us? What are the lot#s' and expiration dates on the ink bottles you're using?
If you filled your carts without shaking the ink bottles, and drew ink from the top of a very settled bottle, did an initial fill cycle and few prints to discover very light and colored output, I don't believe you will get accurate results with this ink because the pigment/liquid ratio is changed, even after pouring cartridge contents back into their original bottles, agitating, and refilling carts.
Please clarify what you are using.
Best regards~ Dana