HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part II
21-2 The Polygon Group EN
Using the Polygon Buffer 
As mentioned, a buffer is a temporary storage area for information. 
The polygon buffer collects the commands and coordinates that 
define a polygon you want to print. This polygon remains in the buffer 
until replaced by another polygon, or until the buffer is cleared by 
initializing the printer. Some commands use the polygon buffer 
automatically, while other commands require that you enter the 
polygon mode. The following commands use the polygon buffer, 
but do not allow you to enter polygon mode first.
RA, Fill Rectangle Absolute  Fills a rectangle specified with 
absolute coordinates.
RR, Fill Rectangle Relative  Fills a rectangle specified with 
relative coordinates.
WG, Fill Wedge  Defines and fills a 
wedge-shaped polygon.
Table 21-1 The Polygon Group Commands (continued)
Table 21-2
Mnemonic Command Name
EA, Edge Rectangle Absolute
ER, Edge Rectangle Relative
EW, Edge Wedge
RA, Fill Rectangle Absolute
RR, Fill Rectangle Relative
WG, Fill Wedge










