Specifications

EM 220
Rev. 1.00
- 49 -
Mobile Printer Command Manual
<Function 169> GS ( k pL pH cn n (fn=69)
[Format]
[Range]
[Default]
[Description]
ASCII GS ( k pL pH cn fn n
Hex 1D 28 6B 03 00 31 45 n
Decimal 29 40 107 3 0 49 69 n
(pL + pH x 256) = 3 (pL=3, pH=0)
cn=49
fn=69
48≤n≤51
n=48
Sets the error correction level of the QR code
N Function Recovery Amount (%)
48 Error Correction Level L 7
49 Error Correction Level M 15
50 Error Correction Level Q 25
51 Error Correction Level H 30
▪ The setting of this function impacts the execution of <Function 181> and
<Function 182>.
▪ This function is effective until ESC @ is executed or the printer power is
turned off.
▪ For correction with regard to the continuous error correction of the QR
code, the Reed-Solomon correction method is used.