Black & White profile for color printer

Who was not hurt by the weird colors of a digital print? Often, the solution is to use the right color profile from the printer manufacturer (depending on paper, ink, printer, etc.). But it is not always enough. If you have an old printer, you may not find the color profiles; If you use generic inks, there may be no adequate color profile. Worse, for some applications like Black & White printing, the slighest color change is perceived by even the less technical observer.

There is another solution. It can be applied by anybody, provided that you bring some patience: Black and white printer profiling (of a sort).