Casio DT-X7 Series Software Manual page 59

2.2.6 Expanded Features
Scan Width Control
If the laser emits on bar codes located near each other, scanning may fail. By narrowing the laser
beam emission width, scanning can be focused onto only one bar code, not onto the other one
located near by. The laser beam emission width can be set to one of the four modes as shown in
Figure 2.8. The Laser Scanner Library can be used to set it. The default is "No control on laser
beam emission width".
• No control on laser beam emission width (default)
• Wide
• Standard
• Narrow
照射幅制御なし
No laser width control
No control
Figure 2.8
The setting values are stored in EEPROM, and read out at time of resetting. Laser calibration (see
note below) can be used to adjust each setting value for the laser beam emission width. The setting
values adjusted must be registered in the registry. The values in the registry will have the priority.
Notes:
•
Each scanner module integrated in the terminal has an individual performance different from
others. To minimize this characteristic difference, the laser calibration must be performed on
each terminal using the dedicated reference bar code.
•
The DT-X7M10U does not support the Scan Width Control function.
•
Setting up the scan width control function in one of four modes while the setting gain (see
page 62) is set up in Auto mode may cause a deterioration of scanning bar codes that are
printed in a poor quality. If you need to set up the scan width control function, select the
setting gain in Mode 0 to Mode 3. Or, if you select the setting gain in Auto mode, select the
scan width control function in "No control on laser beam emission width" mode only.
The functions of the Laser Scanner Library relevant to the "Scan Width Control" are as follows.
OBRSetSwingAngle
OBRGetSwingAngle : Retrieves the status of scan width control mode.
Wide
: Sets up scan width control mode.
59
Standard
Narrow