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Chapter 5 Scanning Control
Two types of scanning controls are available--Trigger switch control and Software control.
Trigger switch control: Pressing the trigger switch readies the scanner for scanning. (Refer to Section 5.1.)
Software control: Instead of pressing the trigger switch, you send control commands from the host PC via the RS-232C
interface to ready the scanner for scanning or put the scanner on standby. (Refer to Section 5.3.)
5.1 Trigger switch control
Pressing the trigger switch turns on the illumination LEDs and readies the scanner for scanning. The scanner supports the
following five trigger switch operating modes. Select the one that best meets your needs using the QR-coded parameter
menu or the configuration software.
(1) Auto-off mode
Holding down the trigger switch lights the illumination LEDs for a maximum of 5 seconds, during which the scanner is
ready to scan.
When a code is read successfully or approx. 5 seconds have elapsed, the illumination LEDs automatically go off and the
scanner switches to standby.
If the trigger switch is released within approx. 5 seconds, the scanner switches to standby.
(2) Momentary Switching mode
Only while you hold down the trigger switch, the illumination LEDs light and the scanner is ready to scan.
When you release the trigger switch or a code is read successfully, the illumination LEDs go off and the scanner switches
to standby.
(3) Alternate Switching mode
Each time you press the trigger switch, the scanner toggles between the ready-to-scan and standby states.
(4) Continuous Reading mode 1
When you turn the scanner on, the scanner lights the illumination LEDs and becomes ready to scan. The scanner ignores
all trigger switch input.
If the scanner receives the Z, READOFF or LOFF command, it switches to standby; if it receives the R, READON or
LON command, it becomes ready to scan.
You can select whether or not the scanner transmits the ERROR command when the scanner cannot complete scanning
and switches to standby, using the configuration software.
(5) Continuous Reading mode 2
This mode is functionally equivalent to the Continuous Reading mode 1, except that the scanner waits for a command
upon completion of scanning. To become ready to scan, the scanner should receive the Z, READOFF or LOFF command
to switch to standby and then receive the R, READON or LON command.
You can select whether or not the scanner transmits the ERROR command when the scanner cannot complete scanning
and switches to standby, using the configuration software.
NOTE: When you are setting parameters using the QR-coded parameter menu, the scanner is always in the Auto-off mode
regardless of the trigger switch operating mode selected.
NOTE: The trigger switch is disabled as long as the scan lock (refer to Chapter 7, Section 7.1.3) is in effect in the Data
Verification mode.
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