Epson 7600 set ink cartridge message

I’m getting a set ink cartridge message on my Epson 7600.
Thought it was the chip. I turned off the chip sensor and Im still getting the error.
I put in the original Epson Cartridge in and the message still pops up.
Same thing when I put them in one at a time…All the lights turn off, with a “wait” message, then the black light comes on.
Could it be the sensor on the printer? Is there a way to replace it if it is?