Scanning (Imager); Scanning - Symbol PDT 7500 Series Product Reference Manual

Figure 4-5. Moving Scan Pattern Upward and Downward on "Tall" PDF Symbol
The scan beam does not have to be perfectly parallel with the top and bottom of the
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symbol (up to a 4

Scanning (Imager)

The Imager has the following features:
omnidirectional reading of a variety of bar code symbologies, including the most
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popular linear, postal, PDF417, and 2D matrix code types.
the ability to capture and download images to a host for a variety of imaging
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applications.
advanced intuitive laser aiming for easy point-and-shoot operation.
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Scanning

The Imager uses digital camera technology to take a digital picture of a bar code, stores the
resulting image in its memory, and executes state-of-the-art software decoding algorithms to
extract the data from the image. A typical bar code decoding process is as follows:
1. The user aims the Imager and presses the scan button.
2. The red laser aiming pattern turns on to assist in aiming the Imager.
3. If necessary, the Imager turns on its red LEDs to illuminate the target bar code.
4. The Imager takes a digital picture (image) of the bar code and stores it in memory
for decoding.
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tilt will work).
Operating the Terminal
4-11