Graphics; Introduction; Serial Matrix Compatible Bit Image Graphics - Printronix P6000L User's Reference Manual

Introduction

All P6000L/P6200L Series printers are capable of standard Printronix Odd/Even Dot Plotting
for normal and high density graphics as well as Bit Image graphics with single, double density,
and double speed double density modes. Odd/Even dot plotting is available for graphics when
the printer is in the P-Series mode; Bit Image graphics is used when the printer is in the Serial
Matrix mode. Printing text and characters is the default mode of operation. Consequently,
each line of graphics data must include a graphics control code to enable the printer for the
desired graphics mode of operation.
The following graphics information is presented in this chapter:

Serial Matrix Compatible Bit Image Graphics

n
P-Series Compatible Plot Mode
n
Combining Graphics and Text
n
Serial Matrix Compatible Bit Image Graphics
Bit Image graphics is used with the printer in the IBM Graphics Printer Serial Matrix mode. Bit
Image Graphics are created by printing a series of vertical Bit Image data bytes which represent
the binary code bit pattern. The Bit Image mode utilizes the 1" or true bits from a binary data
byte to print dot patterns. These data bytes are actually the binary equivalent of ASCII charac
ter decimal values 0 through 255. For example, the binary data byte bit pattern for the ASCII
character A" (hex 41, decimal 65) is shown below in Figure 4-1.
If this data byte is rotated vertically, the result is a vertical data byte pattern with the most sig
nificant bit (MSB) at the top as shown in Figure 4-2.

Graphics

CHAPTER 4
GRAPHICS
MSB
Figure 4-1. Binary Data Byte
4-1