SATO CL4NX Programming Reference Manual page 102

M font character set
Basic size is 13 x 20 dots (width x height)
The print sample shown above is issued with a head density of 8 dots/mm, enlargement ratio of 2
(vertical/horizontal) and DOS 858.
The data from 00 (H) to 1F (H) are control codes and you cannot use them.
Parent topic Font command
100