Hi! I just started using an Epson C88+ inkjet printer to print transfers. I have a new press that uses celius. So here's my problem, I heat the press to 190c which is 375 degrees, then I use strong pressure for 25-30 seconds. When I peel back the paper most of the transfer has adhered, but some small areas have not "melted". I am using transfer paper for white cloth. on a white 50-50 blend shirt, and I peel the backing off immediately. What am I doing wrong?