P-Series Compatible Plot Mode; Plot Density - Printronix P6000L User's Reference Manual

P-Series Compatible Plot Mode

This part of the Graphics chapter describes the P-Series compatible odd/even dot Plot mode
of operation. Plot mode allows any individual dot position to be addressed and printed. This
enables you to produce a variety of graphics including bar codes, complex curve graphs, pie and
bar charts, block characters, or halftones. The plot commands indicated in this section may also
be accessed in the Serial Matrix mode.

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 high density.
The densities can be mixed within the printed page on a dot row-by-row basis, but the two
densities cannot be mixed on the same dot row.
Normal density plotting is selected with the odd dot plot control code ENQ (05 hex). The odd
numbered dot columns are addressed to produce a horizontal and vertical density that varies
based on the mode of operation: 60 dpi horizontal and 72 dpi vertical for Data Processing (DP)
mode, 120 dpi horizontal and 144 dpi vertical for Correspondence (NLQ) mode, and 60 dpi
horizontal and 48 dpi vertical for High Speed mode. Figure 4-6 illustrates normal density dot
plot.
High density plotting is selected with the even dot plot control code EOT (04 hex) in conjunc
tion with the odd dot plot control code ENQ (05 hex). The odd and even numbered dot col
umns are addressed to double the horizontal density with a maximum of 1584 dots in a single
dot row. The vertical density remains the same in normal and high density plotting. Figure 4-7
illustrates high density plotting.
NOTE: When printing black plot for extended periods, enable unidirectional plot to pre
vent overheating the hammer bank.
Graphics
Figure 4-6. Normal Density Plot
Figure 4-7. High Density Plot
4-7