KEYENCE BL-N70 Series - Manual (Page 22)

3-2
3
Scannin
g Barcod
es
3-1 Scanning
The laser turns on when the trigger switch on the BL-N70 is pressed. While holding the
trigger switch, bring the BL-N70 scanner towards the barcode to a distance that complies
with the reading range characteristics on page A-3. Ensure that the entire code fits within
the scan line.
z Trigger modes
There are three modes that can be used when pressing the trigger switch. Choose the
most appropriate mode for the situation ( page 3-4).
• Trigger switch mode – Laser OFF until trigger is depressed. Barcodes scanned only
while trigger is depressed
• Continuous emission mode – Laser always ON. Barcodes scanned only while trigger is
depressed
• Continuous reading mode – Laser always ON. Barcodes always scanned. No trigger
required.
z Data Send Format
Read data is sent to the connected computer or other device.
• For the format of the sent data, see page 3-5.
• For information about the communication protocols when using BL-N70RE/RKE, see
page 3-7.
Note
• Only shine the laser light on one barcode at a time. To enter two or more barcodes,
read each barcode separately one after the other.
• Do not shine the laser light on the barcode label at an angle. The reader may not
be able to read the barcode.