Printronix P7000 Programmer's Reference Manual page 52

Chapter 2
Bar Codes
NOTE: Parameters p2 through p10 are invalid for POSTNET. Do not change
NOTE: The dimensions that follow apply to bar codes that are printed at 0
p2
Bar code height in 1/12 inch increments. Does not include the human
readable line.
p3
Printing the human readable line.
p4
Narrow bar width (number times 1/120").
p5
NOTE: p5, p7, and p8 are not programmable in some bar code styles.
Wide bar width (number times 1/120").
52
Table 17. p1 Values (continued)
If p1 =
15 Code 93
16 Code 128
17 Reserved
18 Reserved
50 POSTNET
the default values; otherwise, they will be retained in memory and will
affect the other bar code styles.
and 180 degrees rotation. If you are printing bar codes that are
rotated 90 or 270 degrees, the dimensions will be compressed by a
6:5 ratio.
Min.:1 = 1/12 inch
Max.:120 = 10 inch
Default:9 = 9/12 inch (or 3/4 inch)
0 = Do not print the human readable line
1 = Default. Print the human readable line
Range:2 - 126
Default:2 (2/120 inch, or approximately .017 inch)
Range:2 - 254
Default:6 (6/120 inch, or approximately .050 inch)
Style