Knowledge Base Article

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Unable to Open Printer Port

This article explains what to do if you receive the error, "Unable to Open Printer Port," when printing to the receipt or label printer.

To resolve the "Unable to Open Printer Port," error when printing to the receipt or label printer:

  • Go to POS>Options>Hardware and find the printer options for the printer with the error.
  • Even though the setting for the printer in question will look as if it is already set up, it needs to be reset. Click on the "Select" button and select the printer again from the drop-down menu.
  • Click "OK" on the Hardware tab to save the setting and exit POS>Options.
You should be able to print to that device again, as usual.


Article Details
Date Created May 22, 2012
Author Kelli Fichtner
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