Q: i was askd to submitte a picture not less than 180dpi and i dont know dpi. i only know megabites(mb) and gbites.........help me....
A: DPI = Dots Per Inch 600 DPI is the max that most printers not doing photo quality will do. You can't specify the image quality in size of the output file because the size of the original will vary. When you do your scan there should be a setting for "custom" that will allow you to change your DPI quality.