HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part II

EN LT, Line Type 22-27
z 1 - Absolute mode. Interprets the pattern length parameter in
millimeters.
z When specified in millimeters, fixed line-type patterns assume
the specified length, but adaptive line-type pattern lengths are
adjusted to fit an integral number of patterns per vector. (This is
true for relative mode and absolute mode.)
If you do not specify the pattern length and mode parameters, then
the printer uses their current values. When using relative mode and
isotropic scaling, the pattern length changes with changes to
X
min
,Y
min
and X
max
,Y
max
.
An LT command remains in effect until another LT command is
executed or the printer is initialized or set to default conditions.
Figure 22-18Fixed and Adaptive Line Types
Table 22-13
Related Commands Group
FT,Fill Type The Line and Fill
PW,Pen Width Attributes Group
UL,User-Defined Line Type