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

EN FT, Fill Type 22-13
For fill type 21, the option1 parameter selects one of the six
predefined PCL cross-hatch patterns using a value between 1 and 6.
The following illustration shows the six different PCL cross-hatch
patterns, and their corresponding parameter numbers.
Figure 22-9 PCL Cross-Hatch Patterns
For fill type 22, the optional parameter selects the corresponding
PCL user-defined pattern specified by way of the
?*c#W command.
Option1 specifies the pattern associated with the user-defined fill
pattern. Option2 is ignored if present. See “User-Defined Pattern
Graphics” in Chapter 13 for a discussion of PCL user-defined
patterns.
Table 22-6 Example: Using the FT Command
?E Reset the printer.
?%0B Enter HP-GL/2 mode.
IN; Initialize HP-GL/2 mode.
SP1; Select pen number 1. Even though there is
no physical pen, the SP command must be
used to enable printing.