Printronix P9000 Series manual Series Compatible Plot Mode, Bit Image Sample Program, Plot Density

At 60 dpi, Single Density = 792 bytes;

Double Density = 1584 bytes

Quadruple Density = 3168 bytes

DData 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.

10LPRINT ”Single Density Bit Image Graphics”

20LPRINT CHR$(27);”K”;CHR$(24);CHR$(1);

30FOR N=1 TO 40

40RESTORE

50FOR I=1 TO 7

60READ R

70LPRINT CHR$(R);

80NEXT I

90NEXT N

100DATA 73, 146, 36, 255, 36, 146, 73

110LPRINT

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 variF 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 densiF ty.

Graphics 4-5