Paxar Monarch 9412 Reference Manual page 69

Q5. end col Distance from left edge of print area
to upper right corner of box.
same as column.
Q6. thickness Using the chart below for reference, write the desired line
thickness (1 to 99) in box Q6. Measure in dots.
NOTE: Boxes fill inward, so make sure your boxes do not
Q7. "pattern" Line pattern. Enter "".
Example
Defines a box field starting at row 240, column 30. It ends at row
270, column 150. It has a thickness of 3 dots.
overwrite other fields.
Q,240,30,270,150,3,""
Ranges
Defining Fields 4-21