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How to change resolution and rendering method of faxes

Article ID: 592
Last updated: 29 Jul, 2021

Applies to:

Imagicle Digital Fax (any version)


How to change resolution and rendering method of faxes for a result more in keeping with the customer's expectations 


Talking of fax quality we can act on 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 act on 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

The value can be:
- 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:
        <preference key="print.RenderingMethod" value="Bitonal" /> 
        <preference key="print.GSExtraParams" value="-dNOPAUSE -dBATCH -dSAFER -sDEVICE=tiffgray -r200" />
        <preference key="print.EnableTiffDither" value="false" />

- Save and close the file.
- Restart Digital Fax service and test

Article ID: 592
Last updated: 29 Jul, 2021
Revision: 6
Views: 394
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