Printronix P9000 Series - Manual (Page 73)

4-5 Graphics
At 60 dpi, Single Density = 792 bytes;
Double Density = 1584 bytes
Quadruple Density = 3168 bytes
D Data in excess of the right margin is discarded. If the auto line feed is enabled, data in
excess of the right margin will cause a Line Feed (LF) and continue printing on the
next line.
A detailed description of the individual bit image control codes with examples is provided in
the Programming chapter.
Bit Image Sample Program
The following sample program written in BASIC produces Single Density bit image graphics of
the pattern shown in Figure 4-1. The 7 data bit pattern is repeated 40 times. The printed result
of running the program is shown in Figure 4-4.
10 LPRINT ”Single Density Bit Image Graphics”
20 LPRINT CHR$(27);”K”;CHR$(24);CHR$(1);
30 FOR N=1 TO 40
40 RESTORE
50 FOR I=1 TO 7
60 READ R
70 LPRINT CHR$(R);
80 NEXT I
90 NEXT N
100 DATA 73, 146, 36, 255, 36, 146, 73
110 LPRINT
Figure 4-4. Sample Single Density Bit Image Graphics
P-Series Compatible Plot Mode
P-Series compatible odd/even dot Plot Mode is available only in P-Series printer protocol.
Plot Mode allows any individual dot position to be addressed and printed. This produces a variĆ
ety of graphics, including bar codes, complex curve graphs, pie and bar charts, block characters,
or halftones.
Plot Density
Plot density refers to the number of dots per inch (dpi) printed in a single dot row. Two types of
plot density are available with P-Series Plot Mode graphics: normal density and double densiĆ
ty.