Paper Profile
An ICC profile describing how a specific combination of printer, ink and paper reproduces colour.
In depth
Because the profile encodes the behaviour of all three together, using the wrong one produces predictable errors — usually a colour cast and blocked shadows. Manufacturers supply generic profiles for their own media, and a custom profile made on the individual machine will always be more accurate.
Examples in practice
Printing a rag paper with a glossy paper's profile produces a green cast and crushed shadow detail.