To add a Leading Digit and a Check Digit to a UPC-E barcode when scanning with a Metrologic MS9540, please scan the following Barcodes. Using the Metrologic MS9540 Manual PDF that is attached below. You will need to print out the page 2, 46 and 47 on a laser printer in order for this to work properly.
Please Scan the Barcodes in the order as shown below and please be careful not to scan any other barcodes.
Page 2 - Enter/Exit Configuration Mode ( This will enter the Configuration mode)
Page 46 – Transmit UPC-E Check Digit
Page 47 - Transmit Lead Zero on UPC-E
Page 2 - Enter/Exit Configuration Mode (This will exit the Configuration mode)
Now your scanner will scan all 8 digits of the UPC-E barcode.