SATO CL4NX Programming Reference Manual page 332

[Print darkness level range]
Model
CL4NX 203 dpi
305 dpi
609 dpi
CL6NX 203 dpi
305 dpi
[Print darkness range]
Parameter valid range
A
Parent topic System Command
Head Parameter valid range
density
1, 2, 3, 4, 5
1, 2, 3, 4, 5
1, 2, 3, 4, 5
1, 2, 3
1, 2, 3
From B to F are reserved. The same darkness as A.
Print darkness other than from A to F will be replaced with A. (It will not be a
command error.)
When setting outside of valid range
Command error will occur when other values than
parameter valid range in the left is specified.
Command error will occur.
However it will work as 2 for 305 dpi when 4 or 5 is
specified.
When setting outside of valid range
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