My digital neg linearizations do not create sufficient density to make the white as bright as the paper when I make PtPd prints. Some tone remains on the print where it should be paperwhite, even in the borders outside the image. The curve that I am using is very well linearized. the darkroom is standardized and calibrated. The printer heads are working well.
How can I make the paper white as a target density for the white point on the print?

