Paxar 9402 Reference Manual page 91

Q6. thickness Using the chart below for reference, write the desired line
thickness (1 to 99) in box Q6. Measured 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,"" p
Defining Fields 3-29