Paxar 6035 manual Density

Row	Distance from the bottom of print area to the pivot
	point of the field. The pivot point varies, depending
	on how the field is justified. Pivot points:

Left/Center/Right-Justified Fields

Balanced Fields End-Justified Fields

Remember to include text or numbers that may appear with the bar code for the row measurement.

Column	The vertical line where printing begins. Type the
	column position for the field. The distance from the
	left edge of the print area to the pivot point is the
	column location. The range is 0 – 183.
	Allow a minimum of 1/10 inch between the scan
	edge of bar code and label edges or other data.
Density	The density of the bar code. The possible values
	vary by the bar code selected.

Defining Bar Code Fields 6-3