User`s manual

10–2 Graphics
Printing Graphic Images
The printer can produce bit image graphics when it is in Proprinter emulation
mode. In either emulation, however, text printing is the default mode.
Consequently, every line of graphics data must include the necessary plot
mode command to enable the printer to perform graphics functions.
You can combine text and graphics on the same line when using the bit
image protocol in the Proprinter Emulation mode.
Proprinter Compatible Bit Image Graphics
Bit image graphics are produced when the printer is in Proprinter Emulation
mode. Bit image graphics are created by vertically printing the binary bit
pattern of a series of data bytes. This mode prints the 1 (true) bits of each
binary data byte. These data bytes are actually the binary equivalent of
ASCII character decimal values 0 through 255. In bit image mode, the data
byte is rotated to the vertical position, with the most significant bit (MSB) at
the top.
73
146
36
255
36
146
73
DECIMAL
VALUES
128
64
32
16
8
4
2
1
DECIMAL
WEIGHTS
7th BIT IMAGE DATA BYTE
2nd BIT IMAGE DATA BYTE
1st BIT IMAGE DATA BYTE
LSB
MSB
Figure 10–1. Bit Image Pattern Plan