59
*2 OBR buffer overrun
This means scanning takes place while data for 9 labels was already stored in memory in the
OBR buffer, when the “OBR buffer output” was the scanned data output method.
2.9.6
Expanded functions
(1) Laser emission width control
If the laser emits on barcodes located near each other, scanning may fail.
A barcode can be successfully scanned by narrowing the laser beam emission width, to focusing
on one bar code at a time, and not onto the other adjacent codes.
The laser beam emission width can be set to one of the four modes below.
No control deflection angle (no control of emission width)
Large deflection angle (wide)
Medium deflection angle (standard)
Small deflection angle (narrow)
No deflection angle control
Large deflection angle Medium deflection angle Small deflection angle
(No control on laser beam emission width) (Wide)
(Standard)
(Narrow)
* When either large deflection angle, medium deflection angle, or small deflection angle is set as
the control for laser emission width, and scanning is performed in a state that combines the
above setting with the Auto Gain setting for gain, scanning performance may be reduced,
depending on the barcode print quality. When either large deflection angle, medium deflection
angle, or small deflection angle is used as the setting, set “gain mode 0~3” as the gain setting.
Also, when Auto Gain is used as the setting, set “No deflection angle control” as the laser
emission width setting.
The emission width can be set using the laser scanner library. The default is “No control on laser
beam emission width”.
Setting values for laser emission width are stored in the area for system use, and are read out for
control when the system is reset.
Laser calibration
*1
can be used to adjust setting values for laser emission width. The setting
values adjusted by laser calibration must be registered in the registry. If there is a registered
setting value in the registry, it will have priority.
*1 Laser - calibration
Each laser scanner module has an individual performance difference from others, causing
errors in laser emission width.
Perform calibration to compensate for this difference. A specialized barcode is used for
calibration.
