Motorola MC3000 User's Guide download pdf (Page 55)

Operating the MC3000 2-23

Imaging

The imager version of the mobile computer has the following features:

• Omnidirectional reading of a variety of bar code symbologies, including the most popular linear, postal, PDF417 and 2-D

matrix code types.

• The ability to capture and download images to a host for a variety of imaging applications.

• Advanced intuitive laser aiming for easy point-and-shoot operation.

Imager

The imager uses digital camera technology to take a digital picture of a bar code, the image is stored in memory and software

decoding algorithms are executed to extract the data from the image. A typical bar code decoding process is as follows:

1. Aim the mobile computer at a bar code and press the scan button.

2. The red laser aiming pattern turns on to assist in aiming the mobile computer.

3. The mobile computer turns on the secondary white LEDs to illuminate the target bar code.

4. The mobile computer takes a digital picture (image) of the bar code and stores it in memory for decoding. A beep sounds to

indicate that the bar code was properly decoded.

5. Release the scan button.

This process usually occurs instantaneously. Steps 2 - 4 are repeated on poor or difficult bar codes as long as the scan button remains

active.

Operational Modes

The imager version of the mobile computer has two modes of operation: Decode Mode and Image Capture Mode. Refer to the Symbol

Application Guide for the Series 3000 Demo imager application.

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

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Motorola MC3000 User's Guide Page 55