HP LaserJet 4100 HP PCL/PJL reference (PCL 5 Printer Language) - Technical Ref - Page 159
Counting the Points in a Polygon, number of points in polygon × 8 = buffer space consumed by polygon
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If you multiply 512 points by 8 bytes per point, the result is 4096 bytes (4 Kbytes). That means the minimum your printer can store in the polygon buffer is 4 Kbytes. That is the worst case, however. Unless the printer has a substantial amount of fonts, macros, or graphics already downloaded into user memory, you can put much more into the polygon buffer. As we just calculated, for every 4 Kbytes of extra unused user memory, the polygon buffer can store 512 more points. You can see how in most cases there is little chance of a polygon buffer overflow, especially with the addition of optional printer memory. The following formula explains how to calculate the buffer space used by a polygon: number of points in polygon × 8 = buffer space consumed by polygon'' Counting the Points in a Polygon The starting pen location and each subsequent point define a polygon. As shown in the following illustration, a rectangle is defined by five points, not four. This is because the starting location is counted again as the ending location. Figure 21-10 EN Drawing Polygons 21-15