Please note this black and white profile service is only intended for
recently made printers with specialist black and white printing modes
(such as the Epson 2400 or x800 series printers, the HP8190, and the
Canon iPF5000 and 8000) or other printers producing already very
neutral prints via a RIP like ImagePrint or Quadtone (e.g the Epson
2100). It is designed to give you accurate tonal placement and indicate
paper tone accurately.
It is not designed for neutralisation of a non-neutral printing process.
We're now offering custom ICC profiles specifically for black and white printing. Whether you use the new Advanced Black and White mode with the Epson pigment ink printers, or something more exotic like Quadtone RIP, your black and white printing process can be profiled - and thus you can open up the world of soft-proofing your black and white prints, just like you're (hopefully) soft-proofing your colour prints already.
Having an accurate soft proof allows you to better pre-visualise your results. You can see the difference beween papers without actually printing, and can place tones in your image more precisely at the points you want between d-max (your darkest possible black) and d-min (the lightest grey you can print). You can also see how the white point of a particular paper will affect your print - to decide, for example, if your image will be better printed on a warmer fine art stock, or a bright white semi-gloss stock.
The price is just $40.
Instructions here.