When I send objects with "printer.print" after i declare the object current_x current_y, I find ome problems:
1. the x and y position for text is not the same (maybe not same units) for graphics.
2. the start point is different from one printer to other:
hp 4m+ - it start after 4 mm
hp 970 cxi - in the page edge
hp 5000 - after 2 mm
3. the problem in section 2 is causing with the top and left margin
