As the labels which was being print out in the IN and OUT screen are assigned to the respective printer during the design ( Tools -> Label -> Label Design).
However, if the eStockCard Client PC’s are using different printer type to than the one which has been assigned for the label, the users would be able to overwrite the printer on the eStockCard Client PC’s.
1. Go to Setting -> System -> Operation Setting
2. Under the Global Tab Setting, look for the Overide Barcode Printer column as shown below:-

4. Select the respective printer for the eStockCard Client PC’s and then Save it.
Now the users should be able to print out the barcode label using the printer which is connected to its PC’s.
