9
4.4.2 Operation with Service or Master Card/Key (see also section 5.2.4.4)
Insert the Service Card/Key (white) or the Master Card/Key (black) in the ACS reader to get access to the Service
Menu (no need to open the cabinet in which the system is housed). The Service menu allows to: 1) initialize the
User Card/Keys, as well as to 2) check the Accounts Data. By the Service Card/Key, operators can reset the Partial
Accounts. By the Master Card/Key, the operator can reset all Accounts data and can also - if the CPU is connected
to the printer - print out the Account records (see steps at foot next page).