Problems with Pixma IX6850

Convert them to PDF and use another Application to print, and you should endeavour to see it from the printers’ side because your in control of that and not from other graphic designers.
A PDF is universally acceptable across all fields..

@The Hat sorry, but I don't understand what you're trying to say, could you be more precise (and, maybe, use a simpler english)?

What I was trying to say was, take control of your own printing and don’t try to emulate what the other graphic designers are doing, know the limitations of your own printer and learn to work within those parameters.

Each has a bearing on one another, the use of the right Application, and the use of the right Colour, followed by the use of the right printer and finally the use of the right paper, get all of these combinations right and your output will be perfect..

@The Hat, I nor am trying to "emulate what the other graphic designers are doing", nor want to obtain "perfect outputs from my own printer". I know pretty well what to do when I need this.
But all I need now is to simulate a neutral CMYK output - also named a "proof print", or a "printed proof", or a "digital proof", etc - in order to have some control on how my work will look when printed on other machines (especially on typographic ones, but also on unpretentious office printers).
This is something that I did for years, with other printers, but I can't obtain from this IX6850, which can't be neutral, but interprets the CMYK colors in a very "artistic" way, having as result significant shifts (probably, as I said and you confirmed, because Canon tries to do their best for photographic purposes).

But I feel that I can't make myself understood, here, so I think it would be better to stop this discussion.
Thank you for spending your time trying to answer me.