Hand Held Products 7200/UG Manuale Utente

C H A P T E R 6 D O L P H I N 7 2 0 0 2 D H A N D H E L D C O M P U T E R

Capturing Images

The image-capture process is a split-second operation for experienced users. By

following the basic guidelines, new users can easily develop their own technique and,

with practice, quickly learn to adapt it to different circumstances. The basic steps for

acquiring images using the Dolphin 7200 2D terminal are:

To aim, hold the Dolphin terminal horizontally at a 45° angle approximately 2 to 9

inches (5 to 20 cm) away from the target. You may have to adjust the angle at

which you hold the Dolphin if there is glare on the screen.

Press the ON/SCAN button to take an image.

Use the live video image on the

terminal screen as a guide for positioning and aiming the terminal at the target.

You may find it helpful to start by moving the terminal further away and then in

closer to the target. The active screen image will have a slightly degraded

appearance compared to the captured image. This is normal.

Release the ON/SCAN button to capture the image when the desired image is

displayed on the terminal screen. Hold the Dolphin terminal as still as possible

when capturing the image.

The image quality and related file size is determined by the data compression method

used by your software application. For highest quality, take grayscale images. When

saved, the image will be saved in JPEG file format. The size of the file depends on the

information content of the image and will be approximately 4-8 K.

Lighting Conditions

The Dolphin 7200 2D terminal is designed to read bar codes and take images in dim

light conditions. It is suggested that you turn on the unit’s electroluminescent display

backlight when taking images in extreme low light conditions to help with aiming.