Epson Carts T079 / Epson1400 Did older printer come with 7 pin chips??

[rarebear]

Hello,

I have a new 1400 and it has 9 pin chips on the carts..
I look online to buy a refill kit and they say all to use 7 pin resetter or I see 7 pads or buy CIS auto chips..

I dont want to buy useless carts can I buy carts for this machine??

Did Epson just change there format and will older 7 pin OEM Epson Carts work in a 9 pin printer??

Thanks Much
Johnny