6 - 8 4600g, 4600r, 4800i User’s GuideScan Stand ModeWhen a unit is in Scan Stand mode, it remains idle as long as it sees the ScanStand symbol. (SeeScan Stand Symbol that follows.) When a different codeis presented, the Imager is triggered to read the new code.Note: The imager automatically adjusts the illumination LEDs to the lowest lightlevel possible to maintain a good lock on the Scan Stand symbol. Whena symbol is presented, the imager’s light levels adjust to the saved setting(see LED Power Level on page 3-9).Scan Stand SymbolWhen a unit is in Scan Stand mode, the LEDs shine at the Scan Stand symbolon the base of the stand which tells it to remain idle. When the Scan Standsymbol is covered, the imager turns the LEDs on at the configured power level(Default High) and attempts to find and decode bar codes in its field of view.Presentation ModeThis programs the imager to work in Presentation mode. The LEDs are either offor at the lowest power for ambient conditions until a bar code is presented to theimager. Then the LEDs turn on automatically to read the code. PresentationMode uses ambient light to detect the bar codes. If the light level in the room isnot high enough, Presentation Mode may not work properly.Scan Stand ModeScan Stand SymbolPresentation Mode