In roll printing, the printing speed is so high that the roll printing machine
It can have 60,000 copies of the output form in one hour
In sheet printing, the maximum print speed is 10,000 copies per hour
In roll printing, the printing machine performs the folding operation simultaneously with the printing process
This speeds up the binding of the roll output
And the last case in roll printing is printed simultaneously back and forth
But on most two-sheet machines, they are printed separately on the printed form