How Bit Image Graphics Are Produced - Printronix P3000 Series User's Reference Manual

How Bit Image Graphics Are Produced

The binary data byte bit pattern for the ASCII character "A" (hex 41, decimal 65) is pictured in
Figure 4–2.
If this data byte is rotated clockwise, the result is a vertical data byte pattern with the MSB at
the top.
If each "1" or true bit is plotted, the result is a Bit Image plot of the ASCII character "A."
4–2
1st BIT IMAGE DATA BYTE
2nd BIT IMAGE DATA BYTE
DECIMAL
WEIGHTS
128
64
32
16
8
4
2
1
73 36
146 255
Figure 4–1. Bit Image Pattern Plan
MSB
8 7 6 5 4 3 2
Figure 4–2. Vertical Data Byte Pattern
7th BIT IMAGE DATA BYTE
36 73 DECIMAL
VALUES
146
MSB
8
7
6
5
4
3
2
1
1
MSB : Most Significant Bit
Graphics