Sorry for not responding sooner, we've had a lot going on here recently that has taken me away from my normal duties. I received and tested the set of carts you returned after not being able to get a good nozzle check with them. I added some more ink, since they were nearly empty, and installed them into our 1400- after just one cleaning cycle, the nozzle check was perfect. I did several other cleaning cycles to simulate your report of nozzle checks getting worse after cleaning, and the nozzle checks continued to be perfect every time. I also made some test prints, and still have a perfect nozzle check...
After testing and determining your carts work perfectly in our printer, and considering you're having the same results with two sets of carts and inks, I have to rule out the carts as the cause of your problem. That leaves the inks and printer as possible culprits, but 1. the printer is working fine with other carts/inks, and 2. we would have an overwhelming amount of problem reports from other customers using ConeColor inks (which we don't have), so we are confident the inks are good. Due to the strangeness of your issue, I am stumped as to why you're unable to get good results with the ConeColor refill carts in your printer, and don't have any other ideas/suggestions.
I will discuss your situation with Wells, and have him issue a refund upon receipt of your second set of carts and all remaining ConeColor ink in bottles. Please send the bottles and carts to me at the same address you sent the first set of carts.
Please let me know if you have questions, or there's anything further I can help you with.
Best regards~ Dana