User's Guide

Operating the MC3000 2-21
Decode Mode
Activate the scan button, the mobile computer attempts to locate and decode enabled bar codes within its field of view. The mobile
computer remains in this mode as long as the scan button remains activated, or until the bar code is decoded.
Image Capture
The imager version of the mobile computer allows image capture. In this mode, the imager displays an image until the image is
snapped. The snapped image can then be saved.
Aiming the Mobile Computer
The imager version of the mobile computer projects a laser aiming pattern (shown below) similar to those used on cameras. The
aiming pattern is used to position the bar code or object within the field of view.
Figure 2-16. Laser Aiming Pattern
To scan a symbol using the imager:
1. Center the symbol in any orientation within the aiming pattern. Ensure the entire symbol is within the rectangular area
formed by the brackets in the aiming pattern.
Figure 2-17. Centering Symbol in Aiming Pattern
The imager can also read a bar code presented within the aiming pattern but not centered, such as the figure below on the
left. The figure on the right, however, can not be decoded.
Figure 2-18. Imager Aiming
2. The aiming pattern is smaller when the Imager is closer to the symbol and larger when it is farther from the symbol. Scan
symbols with smaller bars or elements (mil size) closer to the unit and those with larger bars or elements (mil size) farther
from the unit.
Linear bar code
PDF417 symbol
Symbol
View Finder
(Aiming Pattern)
Right
Wrong