Citizen Systems BD2-2220 - Manual (Page 205)

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fn=1、49： Function 1 Copies the set value stored in work area to the storage area
GS ( M pL pH fn m
[Code] < 1D>H<28>H<4D>H
[Range] (pL+pH×256)=2：(pL=2、pH=0)
fn=1、49
m=1、49
[Outline] [The specification which depend on the model]
Copies the set value stored in work area to the storage area.
[Caution] • This command allows writing to non-volatile memory. Therefore, using this command frequently
may result in breakage of non-volatile memory. Use this command appropriately [10 times
max./day].
• During execution of this command, the printer is in Busy state and stops receiving operation.
Therefore, data transmission from the host is prohibited.
fn=2、50： Function 2 Copies the set value stored in storage area to the work area
GS ( M pL pH fn m
[Code] < 1D>H<28>H<4D>H
[Range] (pL+pH×256)=2：(pL=2、pH=0)
fn=2、50
m=0、1、48、49
[Outline] [The specification which depend on the model]
Changes the set value of work area by the value of “m”.
m Function
0、48 Sets all set values of work area to the initial value described in the specification.
Copies the set value stored in storage area to the work area.
1、49 When there is no set value in storage area, sets the value to the initial value described
in the specification.