Star Micronics XB24-10 User Manual page 65

[Relationship of bit number to dot position]
When the printer is printing bit-image data using 8 pins in standard (non-IBM) mode,
the relationship of dots to pins used is as follows:
When the printer is printing bit-image data in 24-pin resolution (both in standard and
IBM emulation mode), the relationship between the bits set and the dots printed is
as follows:
Bit
number
2
m"
N
2
m"