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Check that the receipt printer is turned on, connected to the computer and has paper. You can test the receipt printer by printing to it from another program, for example Notepad.

If another program can print to the receipt printer by Libretto still doesn’t print receipts, there may be a problem with the ReceiptDefinition.xml file. You can see the status of the receipt definition file in the Application log, near the start of the application:

 

 13:00:33.592 : PRT : 'ReceiptDefinition.xml' is ok

 

If there is an error with the file, it will be displayed instead of the ”ok” line:

 

 11:35:07.942 : PRT : Following errors found in 'ReceiptDefinition.xml'

 11:35:07.942 : PRT : Name cannot begin with the '<' character, hexadecimal 

 value 0x3C. Line 13, position 4.

 

This should help you locate the point where there is a problem in the receipt definition file.