Denso BHT-1700 Series User Manual page 147

 Decode level
The barcode reading quality level can be set. Lowering the level increases the barcode reading efficiency,
however, misreading probability of poor-quality barcodes (broken or dirty barcodes) also increases. In contrast,
raising this level decreases the barcode reading efficiency, and also decreases misreading probability of
poor-quality barcodes.
The level can be selected from 1 to 9. The default level is set to 4.
1D, 2D
Setting range: 1 - 9
Default: 4
 Invert decode
Enables to read the black-and-white inverted codes.
1D
Default: Disabled
Disabled
Disables to read black-and-white inverted codes.
Enabled (Auto)
Automatically determines and reads both black-and white inverted and not inverted codes.
Enabled (Inversion only)
Reads only black-and-white inverted codes.
- Reference-
Reading by Auto setting may take longer than reading of normal code without
reading black-and-white inverted codes or reading of black-and-white inverted
codes.
2D Long
Does not support.
2D
Default: Disabled
- 136 -
2D Long
Does not support.
Always read both of inverted
and not inverted