Casio QT-6000 Training Manual page 43

Memory Allocation General Notes
If you want to use clerk interrupt please make sure you have a NB
key allocated in the free function file.
If you want to use a Slip printer please make sure you have a Slip
print key allocated in the free function file.
If you are using the table share function you must have a new
check key in the free function file
Location keys can only be assigned to the check and clerk window
screens
The post entry function must be assigned to the keyboard
It can't be used in a pull down function list
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