no neviem, uz som myslel ze mam konecne jasno, to co tvrdite je velmi logicke ale ako tak brazdim po nete:
Resoluton, DPI, plays a big part of how your images turn out in the end. New printers vary from as low as 600x600 and go up to 4800x1200 dpi. DPI, Dots Per Inch, is the amount of dots (droplets of ink) used to make up text, or more importantly a photo. The more dots being used, the better the outcome of the picture, although the more ink being used. There shouldn't be any reason why when printing text that a high DPI would be needed. Anything above 300x300 dpi is just a waste of ink, sometimes even 300x300 is too high. Text quality for example is indistinguishable whether it's printed in 300x300DPI or 2400x1200 DPI for example. As you can figure out you are using 32x more ink to print your text document.
zdroj:http://www.canadiancontent.net/tech/...ing-a-printer/