Setting the scanning area
Use the ESC R, ESC H, and ESC A commands to set the scanning area. The diagram below shows the relationship between the ESC R, ESC H, and ESC A command parameters and the scanning area.
RX : Main scan resolution (in dpi)
RY : Sub scan resolution (in dpi)
HX : Main scan zoom (in %)
HY : Sub scan zoom (in %)
After setting the above values, determine the ESC A parameters based on the following formulas: