InfoPrint LQ-1600K, Programmer'S Reference Manual

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93
C
Graphics
Bit Image Graphics
Bit image graphics are created by vertically printing the bit pattern of a series
of data bytes. For example, the bit pattern of the ASCII character A (hex 41,
decimal 65) is shown in Figure 3. If we rotate this data byte 90 degrees
clockwise, we have a vertical data byte with the most significant bit (MSB) at
the top. If we then print each 1 (true) bit as a dot, the result is a “bit image” plot
of the ASCII character A.
Figure 3. Vertical Data Byte Pattern
MSB
MSB
8 7 6 5 4 3 2 1
8
7
6
5
4
3
2
1
MSB : Most Significant Bit
ASCII character A = Hex 41 = Binary 01000001