Epson India — Printer not printing colour printing

I have epson printer l3150. Serial no. X5ep050617 purchased on 26-4-19.
I was purchasing hp but dealer told that in colour printing epson better.in starting for some time colour printing worked though not like hp, we have in family. After some time very bad colour printing or some time like black and white. Technician before lockdown came n told that you must have used local colour ink, but we were using only ink, which came with the printer at time of purchase only. Then he did something but still poor colour printing and now again no colour printing. I think it is manufacturing problem. Now company should do it solved at free of cost, since it is a continued problem.