The number of columns is dependent on the resolution
of the ticket printer in dots per inch (DPI). The total number of
columns is equal to the total number of dots that could be printed in
the width of the ticket. To calculate the total number of columns
available multiply the DPI of the ticket printer times the width of
the ticket.
- If the printer has 200 DPI resolution, it prints 200
dots per inch. A 5 inch wide ticket will have 1000 dots or columns.
By entering 300 into the column parameter, you instruct the printer to
start printing the information 1.5 inches from the left edge of the
ticket.
- If the printer is 100 DPI there are 500 dots in the
width.
By entering 150 in the column parameter you instruct the printer to
start printing the information 1.5 inches from the left edge of the
ticket.