Model space, Paper space

I have a basic problem. I am ready with my drawing, and i would like to see it in paper space. I choose a printer and for example an A3 sheet.  I would like to draw a frame . But where is the 0,0 point in the paper space?  It should bee at the lover left corner of the sheet. But it is every time somewhere else.  I tried to move it with Print configuration manager print range. The 0,0 point moves but  I can not find the roole.  How should I draw the basic frame correctly, when the 0,0 point is mooving? Why does it moove? 

Zsolt