Citizen BD2-1220 Command Reference Manual page 49

ESC c 4 n
[Function]
[Code]
[Range]
[Outline]
[Default]
Selecting the Paper Near-end Sensor valid for print stop
<1B>H<63>H<34>H<n>
0 n 255
This command selects the Paper Near-end Sensor which helps
to stop printing when the paper supply almost runs out.
Each bit for "n" has the following meaning:
Bit
0 Paper Near-end
1 Paper Near-end
2
3
4
5
6
7
This printer can only select one kind of Paper Sensor, a Paper
Near-end Sensor.
n = 0
— 47 —
Position
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Value
0 1
Disabled Enabled
Disabled Enabled