Casio TK-3200 User Manual page 25

I Credit key
Use this key to register a credit sale.
J Charge key
Use this key to register a charge sale.
K Check key
Use this key to register a check tender.
L Subtotal key
Use this key to display and print the current subtotal
(includes add-on tax) amount.
M Cash/Amount tendered key
Use this key to register a cash tender.
N Flat PLU key
,
Use these keys to register items to flat PLUs.
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