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How to change Fax resolution and rendering method

Applies to:

Imagicle UCX Suite, any version

Description:

How to change fax resolution and rendering method to improve fax quality and meet customer's expectations. 

How-to:

Fax quality can be tuned through two different parameters:  the resolution and the rendering method.

Resolution: this parameter can have two settings: 200x200 dpi or 200x100 dpi.
To change this setting you should access the Digital Fax printer like this:

  • Open the printers panel in Windows

  • Select Digital Fax printer

  • Right click and select "Printing preferences"

  • Select the desired resolution using the "Image quality" parameter. 

Rendering: please proceed as follow:

  • Open file "Stonefax.config.xml" in the folder <StonevoiceAS>\apps\stonefax\settings

  • Change/add the key:
    <preference key="print.RenderingMethod" value="Bitonal" />

  • Save and close the file

  • Restart the Digital Fax service

Accepted values are:

  • Normal: Best for images but not so good for text (medium transmission speed)

  • Bitonal: Best for text but not so good for images (fast transmission speed)

  • HiContrast : Good for text and images (low transmission speed)

The default value is Normal.

In case of fax with text and images that are not black, the result may be a fax not readable.
It is possibly to modify Digital Fax to increase the contrast proceeding in this way:

  • Open folder <StonevoiceAS>\Apps\Stonefax\Settings

  • Backup (copy/paste) the file "Stonefax.config.xml"

  • Open the file "Stonefax.config.xml" and change like follow:
        <configuration>    
            <preference key="print.RenderingMethod" value="Bitonal" /> 
            <preference key="print.GSExtraParams" value="-dNOPAUSE -dBATCH -dSAFER -sDEVICE=tiffgray -r200" />
            <preference key="print.EnableTiffDither" value="false" />
        </configuration>

  • Save and close the file.

  • Restart Digital Fax service and test

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