I am using dot matrix printer to print various reports

I normally print on DMP this way :

Set device to Filename

Set print on

@n , m say "..."
...
..
..

Set print off
Set device to screen
!type [Filename] > prn


My problem is that the last line of printable text does not print at first attempt but prints only when you make the printer offline.

I can get last line printed by printing spaces with @say on next @say row. But I do not want to do that.

Can any body help me to solve this problem?