Motorola MT2090 用户手册
Scanning
3 - 5
To scan a bar code, center the symbol in any orientation within the aiming pattern. Be sure the entire symbol is
within the rectangular area formed by the cross pattern.
within the rectangular area formed by the cross pattern.
Figure 3-3
Scanning Orientation with Imager Aiming Pattern
The device can also read a bar code presented within the aiming pattern but not centered. The top examples in
show acceptable aiming options, while the bottom examples can not be decoded.
Figure 3-4
Acceptable and Incorrect Aiming
Laser Aiming
In hand-held mode, the laser device projects a laser line by default. Ensure the scan line crosses every bar and
space of the symbol.
space of the symbol.
Figure 3-5
Scanning Orientation with Laser Aiming Pattern
The aiming pattern (or laser line) is smaller when the device 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 device, and those with larger
bars or elements (mil size) farther from the device.
from the symbol. Scan symbols with smaller bars or elements (mil size) closer to the device, and those with larger
bars or elements (mil size) farther from the device.
The device beeps to indicate that it successfully decoded the bar code. For more information on beeper and LED
definitions, see
definitions, see
and
.
Symbol
Aiming Pattern
1D bar code
2D bar code
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
RIGHT
012345
WRONG
012345