User's Manual

Psion Teklogix 7545 Hand-Held Computer User Manual C-43
Appendix C: Bar Code Settings
Imager
Imager Advanced Options
Dot Time (msec)
The value selected for “Dot Time (msec)” determines (in milliseconds) how long the target-
ing dot remains on before the scanner begins capturing images. When you double-tap on this
parameter, a dialog box is displayed in which you can enter a value of between 0 and 3000.
A value of 0 disables the target dot.
C.4.2 Imager Advanced Options
Factory Defaults 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.
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.
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.
Important: Do not adjust the advanced options without first consulting Psion Teklogix
technical support.
Note: The driver will default the imager device on a ‘clean’ reset, regardless of the value
of this parameter.
Note: The actual scan duration when the trigger is pressed relies on the value assigned to
“Captures Per HW Trigger”, below.
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”.
Preliminary Draft 3