Tally Genicom Matrix Printer Printer User Manual


 
Relationship between bits of graphics data and needles (9 needle version)
Each needle in a column is assigned a bit of the data byte.
Needle Data Byte 1
1
Bit 7
2
Bit 6
3
Bit 5
4
Bit 4
5
Bit 3
6
Bit 2
7
Bit 1
8
Bit 0
Relationship between bits of graphics data and needles (24 needle version)
When using 24-pin graphics modes, three bytes of data are required for each dot column.
Needle Data Byte 1 Needle Data Byte 2 Needle Data Byte 3
1
Bit 7 9
Bit 7 17
Bit 7
2
Bit 6 10
Bit 6 18
Bit 6
3
Bit 5 11
Bit 5 19
Bit 5
4
Bit 4 12
Bit 4 20
Bit 4
5
Bit 3 13
Bit 3 21
Bit 3
6
Bit 2 14
Bit 2 22
Bit 2
7
Bit 1 15
Bit 1 23
Bit 1
8
Bit 0 16
Bit 0 24
Bit 0
Graphics
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