Double Profiling Question

[Baywing]

I'm asking this in an attempt to wrap my brain around the process. I'm using XP, Adobe PS and printing on Epson R1800 or 1900. I let PS manage the colors and the printer is set to ICM=off.
When I hit "print with preview" I enter my paper profile and proceed. Then, in the printer advanced box, I also choose and enter the paper type. Is this double profiling and if so, which setting do I change and what do i change it too? (The procedure I'm following is the one I've read from Epson, Adobe and many other sources as the way to set things up)
I'm not having any big issues, just trying to understand the process, thanks!

[E.J. Peiker]

No, you aren't double profiling by doing that. ou are just making sure all parts of the printing process know what profile you are using.

[Baywing]

That's what I figured as I haven't really had an issues, just trying to understand the process. Thanks!

[Royce Howland]

Setting the paper type in the printer driver is not double-profiling. The paper type just instructs the printer driver about a few basic things like media thickness, head speed / drying time, and perhaps things less basic depending on the driver. It's about an effective physical process of laying down ink.

Profiling is completely different. It's about characterizing the color performance of a device, and then making color transformations on the image data in order to ensure consistent color reproduction.

The reason profiling instructions always mention setting the media type is that changing how the ink is laid down can influence how color is perceived. If you don't lay the ink down the same way during printing that it was laid down during the original profiling process, there may be some color shifts that creep in. So in that sense, not only is setting the right paper type NOT double profiling, it can be an important part of correct profiling and correct use of profiles...

[Baywing]

Thanks Royce, that is heplful info.