User guide

21
Sixel Graphics Considerations on the
LA600 MultiPrinter
This chapter explains the graphics resolution capability of the LA600
MultiPrinter.
21.1 Graphics Resolution
Since the LA600 MultiPrinter does not support a physical horizontal resolution
of 1/720", it needs to ‘‘fall back’’ to a different grid size when some grid sizes
are requested. Table 21–1 shows the values that the LA600 uses for the macro
parameter (Ps1) of the Sixel Graphics mode protocol selector.
Table 21–1 Graphics Pitch Fallbacks
Macro Value
Horizontal Grid
Size (inches)
Actual Aspect Ratio (Vert
pixels:horiz pixels)
Target Aspect
Ratio
0 or None 1/144" (.0069) 200:100 200:100
1 1/144" (.0069) 200:100 200:100
2, fallback to: 1/180" (.0056) 250:100 450:100
3, fallback to: 1/180" (.0056) 250:100 300:100
4, 1/180" (.0056) 250:100 250:100
5, fallback to: 1/144" (.0069) 200:100 183:100
6, fallback to: 1/144" (.0069) 200:100 150:100
7, fallback to: 1/144" (.0069) 200:100 130:100
8, fallback to: 1/144" (.0069) 200:100 112:100
9 fallback to: 1/72" (.0139) 100:100 100:100
>9 1/144" (.0069) 200:100 200:100
Table 21–2 shows the horizontal grid size (HGS) and vertical grid size (VGS)
fallbacks relative to the requested horizontal grid size and the aspect ratio.
Sixel Graphics Considerations on the LA600 MultiPrinter 21–1