Thank you for your explaination, Jenny. But what Im trying to do is to implement a simple program that is similar to shopping cart but will work almost the same as a cash machine. The cach machine will print out the data of a transaction each time a product is key in or scaned. What I like to do is something similar to that, that's why I need to make the program to print one row at a time to the paper printer after each transacrtion.
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