Datamax Label Printer Operator's Manual page 26

When the printer receives an immediate command it will cease
whatever it is doing and perform that command. Commands of all
types must be in this sequence:
1. Attention Getter
2. Command Character
3. Parameters that must be entered by the user (if any).
Command Must Enter
Character Parameters?
#
A
B
C
D
E
F
18
Printing Labels
Printer
Responds?
N Y
N Y
N N
N N
N N
N Y
N Y
Table 2-2 Immediate Commands
Command
Reset
Send ASCII status string
Toggle pause
Cancel
SOH shutdown
Send batch quantity
Send status byte
Ovation 2