Casio QT-6000 Training Manual page 103

CHAPTER 13
Customer file and invoice numbers
When using the customer accounts system the check tracking files
are used to store the details of the customer accounts these files
are
File 15 (Check Index)
File 60 (Check detail)
After customer payment operation, the finalized and discounted
amount are accumulated in the totalizer area of File 37 (Customer
file) and File 42 (Customer group file)
Customer number entry can be done by entering a customer
number manually or by swiping a card using the Magnetic card
reader
Programming
Assign a Customer # key and a Payment key
Function code for Customer Number Is 148
Function code for Payment key Is 149
Customer control – "Allow to create new customer" - YES – ESC
103