25Introducing TK-800F Minus key mUse this key to input values for subtraction.G Old check key OIn a check tracking system, use this key to input thenumber of an existing check (previously created using theN key) whose details are stored in the check trackingmemory. Existing checks are reopened to perform furtherregistration or to finalize them.H Non-add / No sale key BNon-add key: To print reference number (to identify apersonal check, credit card, etc.) during a transaction,press this key after some numerical entries.No sale key: Press this key to open the drawer withoutregistering anything.I Check key kUse this key to register a check tender.J Refund key RUse this key to input refund amounts and void certainentries.K New check key NIn a check tracking system, use this key to input a newcheck number in order to open a new check under thatnumber.L Subtotal key sPress this key to display and print the current subtotal(includes add-on tax) amount.M Credit key cUse this key to register a credit sale.N Error correct / Cancel key eUse this key to correct registration errors and to cancelregistration of entire transactions.O New balance key nIn a check tracking system, use this key to add latestregistered total to the previous balance to obtain a newbalance.P Cash / Amount tendered key FPress this key to register a cash sale.• Calculator Mode4 Clear / All clear key CB Ten key pad 0, 1, ~ 9, -, ^C Arithmetic operation key &, ', ( and )P Equal key F0 Percent key p7 Memory recall key +H Drawer open key B
