Honeywell 8680i Quick Start Manual page 6

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Linear bar codes 2D Matrix symbol s
The aimer line is smaller when the scanner is closer to the 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. To read single or multiple symbols
(on a page or on an object), hold the scanner at an appropriate
distance from the target, press the trigger, and center the aimer
line on the symbol. If the code being scanned is highly reflective
(e.g., laminated), it may be necessary to tilt the code up 15° to
18° to prevent unwanted reflection.
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