T - Wait For Trigger; L - Led State; E - Exposure - Honeywell N4680 User Manual

T - Wait for Trigger

Waits for a hardware button push before taking the image. This is only available
when using Photo Style (1P).
0T
1T

L - LED State

Determines if the LEDs should be on or off, and when. Ambient illumination (0L) is
preferred for taking pictures of color documents, such as ID cards, especially when
the scan engine is in a stand. LED illumination (1L) is preferred when the scanner
is handheld. LED State is not available when using Decoding Style (0P).
0L
1L

E - Exposure

Exposure is used in Manual Style only (1P|2P), and allows you to set the exposure
time. This is similar to setting a shutter speed on a camera. The exposure time
determines how long the scanner takes to record an image. On a bright day, expo-
sure times can be very short because plenty of light is available to help record an
image. At nighttime, exposure time can increase dramatically due to the near
absence of light. Units are 127 microseconds. Default = 1 000 000.
nE
Example:
N4680 2D Decoded Scan Engine User Guide
Takes image immediately (default)
Waits for a button push, then takes the image
LEDs off (default)
LEDs on
Range: 1-1 000 000
Exposure at 7874E with
fluorescent lighting:
Exposure at 100E with
fluorescent lighting:
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