printing simple graphics

If i wanted to draw a dot on the scren in QBasic, I would just use this syntax:

PSET (20, 20), 15

but how do I draw dots on my printer? I have a scatter graph that i would my program to be able to print on my laser printer.

[TB]

In my opinion that would be very difficult in Qbasic.
You will need the driver of your printer to print dots or lines.
In Qbasic you can use the port adress of your LPT port to send tha data to print, but i don't know how to use the driver nor what commands you need to print your picture.

[TB]

But those people knew the commands to print something on their printers, the built them.

It is difficult in QBasic, because there are no devices to print.