Psion EP10 Manuel d'utilisateur Page 243

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Appendix C: Imagers Applet
Required Applets
C-3
Psion EP10 Hand-Held Computer User Manual
The Imagers applet is used to create, modify, delete and activate imager settings. The principle uses of the
applet are to decode bar codes and to capture images. A Demonstration Application is provided to demon-
strates how the imager works. Refer to “Imager and Camera Demo” on page 88 for details.
C.1 Required Applets
In order to configure imaging, the Manage Triggers applet must be present in the Settings>System tab along
with the Imagers applet.
C.2 Presets
There are two methods that can be used to configure an imager using the Imagers applet:
Use a predefined preset.
Create a custom preset based on a predefined preset.
A preset is a group of exposure and image correction settings. Each preset configures the imager for a spe-
cific purpose such as bar code decoding or image capture.
Presets also allow easier and faster configuration of the imager after power-on or resume from suspend.
The predefined presets are generic and satisfy most user requirements. A custom preset can be created for
a specific user application, such as: include only specified bar codes, read only a specified number of bar
codes or for reading unusual media.
Every preset belongs to a preset type. The following preset types are available:
Imaging for photo capture.
Imaging for bar code decoding.
Symbology selection.
At any time, only one preset of each type can be designated as the user-selected active preset.
C.2.1 Predefined Presets
Predefined presets are built into the imaging software and cannot be changed. The predefined presets
allow you to use the imager to perform specified tasks without having to understand and set numerous var-
iables. In almost all cases these predefined presets are sufficient.
C.2.2 Bar Code Predefined Presets
These presets encompass the majority of the most popular bar codes and their subtypes. The bar code de-
coding symbology predefined presets define which bar codes can be decoded. The bar code decoding
camera predefined presets determine how the bar code images are captured
C.2.2.1 Bar Code Decoding Symbology Predefined Presets
The following presets select groups of similar bar codes for decoding.
Factor y Default
This preset enables the decoding of frequently used bar codes.
My Default
The bar codes in this preset can be enabled, disabled and so on.
Important: It is strongly recommended that a predefined preset is used whenever
possible. Each predefined preset contains a coherent group of settings
that are known to work together in the intended environment. In
almost all situations, at least one of the predefined presets results in
a satisfactory outcome.
Note: It is recommended that the default preset be used whenever possible.
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