Psion Teklogix 7530 G2 Imager Advanced Options, Default Dev. On Reboot, Min Scan Duration

Chapter 5: Configuration

Imager

5.11.5.2 Imager Advanced Options

Important: Do not adjust the advanced options without first consulting Psion Teklogix technical support.

Default Dev. On Reboot

The value assigned to this parameter determines whether or not the driver will restore the factory defaults to the imager device on the next reboot—that is, a cold boot or warm boot.

Note: The driver will default the imager device on a clean-cold-boot, regardless of the value of this parameter.

Min Scan Duration

This parameter defines the minimum amount of time in seconds that the imager will scan when the trigger is pressed and held down without successful decode.

Note: The actual scan duration when the trigger is pressed relies on the value assigned to Captures Per HW Trigger, below.

Captures Per HW Trigger

The value assigned to this parameter determines the number of captures the imager device will take while the imager's internal hardware trigger is held down.

Note: This parameter, together with Min Scan Duration, determines the actual scan duration. When the scan trigger is pressed and held down, the driver starts a timer based on the value of Min Scan Duration and also sends a command to emulate the hardware trigger. When completed, if the time has not yet expired, it will send another command to the imager device, forcing the imager to flash again using the value assigned to Captures Per HW Trigger.

Auto Exposure

Important: This parameter value should only be changed by qualified Psion Teklogix personnel. It should be left at the default value – ‘on’.

Setting this parameter to on allows the imager to make automatic gain, integration and illumination adjustments based on ambient light before capturing the bar code. If the adjustment is insufficient, further adjustments are made automatically before another image is captured.

Psion Teklogix 7530 G2 Hand-Held Computer User Manual 189