Datalogic Gryphon I GFE4500 Product Reference Manual page 17

GRYPHON™ GFS4500 AIMING SYSTEM
Figure 3. Relative Size and Location of Gryphon™ GFS4500's Aiming System Pattern on
Linear bar code
A beam illuminates the label. The projected pattern of the aiming system will be smaller
when the reader is closer to the bar code and larger when it is farther from the code.
Symbologies with smaller bars or elements (mil size) should be read closer to the unit.
Symbologies with larger bars or elements (mil size) should be read farther from the unit.
If the aiming system is centered you will get a good read. Successful reading is signaled
by an audible tone plus a good-read green spot LED indicator.
Figure 4. Relative Size and Location of Green Spot
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