I think there is quite a bit of problem here... let me try again... for clearity's sake please indulge my longwindedness :embrass:
the actual printing process is always the same whether the printer can accept sRGB, adobe RGB, CMYK, whatever... ink is applied on to paper always, and different colours are added to each other to form new colours, starting with white paper, accumulating density of ink as more ink is layered on, and ultimately resulting in total black printed surface with maximum amount of ink... this is the same whether you use inkjet, dye sub, laser, blood :bsmilie: , whatever... this is the only current process of print, the addition of pigment (pigment used in a general sense of the word, but includes pigment ink, dye based ink, etc.) onto paper, regardless of technology
you cannot do what is called additive colour, what is seen in monitors where green light plus blue light plus red light gives you white light, in printing... as you can read, I use the word light, and it is a function of light, not of pigments...
CMYK is a system to describe the mixing of colours in the printing process to produce a variety or gamut of colours utilizing the basis of 3 colours and 1 tone: cyan, magenta, yellow and black... but modern inkjet printers have additional pigments to facilitate the printing of more colours than what most forms of CMYK can describe... we can say that these printers can produce more colours than CMYK can describe, that they can approach the gamut of colours that can be described by sRGB, but these printers do NOT print sRGB... like I mentioned earlier, printers can only print by adding pigments onto paper to increase density from empty white paper to black... modern inkjets can print more colour than CMYK because they use more than 4 inks, they take the colour depicted in an RGB file and translate it into a format that they can use to map out the colour with respect to its inks... but the actual printing process is still the same... let me state again, printers do not print any form of RGB... but printers DO accept and usually for most desktop printers only accept sRGB images...
what you see on the screen when you convert an image into CMYK is not an actual conversion of the file into CMYK, but a simulation of the image as it would be represented if it were printed in CMYK... the program that did the conversion did not magically convert your monitor into a CMYK device... monitors can only output with RGB... but as the variety of colours that most monitors can display is greater than CMYK can describe, there is no big problem in this simulation... problems in printing arise when the printers variety of colours is not wide enough to reproduce all the colours that an RGB file can describe...
of course this is OT, but just a post to clear some misconceptions
back to topic of this thread, again to the TS, just start by profiling you display and print with defaults, and if still have problem, you can try kgston's method or you can get someone with proper equipment to profile your printer... end of story