Denso QK31-R User Manual page 104

Note 7: Single-line scanning and multi-line scanning can be specified at one time.
(Example) Specification of SZ,Y,&A:A12,&M,&K:5-10;56 allows the following codes to be scanned.
- Data Matrix
- PDF417/MicroPDF417
- Multi-line bar codes under the following conditions
1st line: EAN-13/UPC-A starting with 12
2nd line: Code 39 with/without CD
3rd line: Code 128 of 5 to 10 digits, starting with 56
- EAN-13/UPC-A and Code 128 out of the above scanning specifications, as a single-line code
Note 8: Multi-line barcode scanning should be specified at the end of a command sequence. Specifications halfway in a
command sequence results in an error.
(Wrong example) SZ,Y,&A:A12,&M,&K:5-10;56,Q
MicroQR Code follows multi-line barcode scanning, so this results in an error.
(Correct example) SZ,Y,Q,&A:A12,&M,&K:5-10;56
[2] "NR" command parameters
Items
Enable transmission of the number
of digits
[3] "TR" command parameters
Items
Double-read prevention timeout
[4] "DLV" command parameters
Items
Bar code scanning level
Note 1: The "DLV" command applies to all one-dimensional codes, not to two-dimensional ones.
Note 2: Specifying a high scanning level may increase the scanning time required.
The entry range of the scanning level is from 1 to 8. Increasing the scanning level value decreases the bar-code
reading efficiency, but it diminishes the possibility of misreading of low-quality bar codes (split, stained, thicker, or
thinner). To the contrary, decreasing the value increases the bar-code reading efficiency, but the scanner may misread
low-quality bar codes.
Parameter Example
2 NR:2
4 NR:4
Parameter Example
00 TR00
01 to 99 TR05
Parameter Example
Bn DLVB1
to
DLVB8
93
Function
Transmit data by two digits.
Transmit data by four digits.
Function
Enable double-read processing.
Set the double-read prevention timeout (x 100 ms)
Default: 05 (500 ms)
Function
Scanning level 1 to 8
(Low) 1  Scanning level  8 (High)
Default: 2