HP FAX-750 Service Manual - Page 97

3. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS 3.1 EEPROM Parameter Initialization n Function The equipment initializes the parameters, user switches, and firmware switches registered in the EEPROM, to the initial values. Entering the function code 01 initializes all of the EEPROM areas, but entering 91 does not initialize some areas, as listed below. Data item Function code Maintenance-mode functions User switches Firmware switches Remote activation code Activity report Distinctive ringing patterns registered Station ID data Outside line number Cover page custom comments Remote access code FAX forwarding/paging Personal mailbox password Telephone function registration One-touch dialing Speed dialing Group dialing EEPROM customizing code (4-digit) 01 91 All of these will be initialized These will be initialized These will not be initialized This will not be initialized. (Note that the first digit of the 4-digit code will be initialized to "0." If the code is 1001, for example, it will be initialized to 0001.) NOTE: If you replace the main PCB with one used for other facsimile equipment, carry out this procedure and then customize the EEPROM (maintenance-mode function code 74 in Section 3.11). n Operating Procedure (1) Press the 0 and 1 keys (or the 9 and 1 keys according to your need) in this order in the initial stage of the maintenance mode. The "PARAMETER INIT" will appear on the LCD. (2) Upon completion of parameter initialization, the equipment returns to the initial stage of the maintenance mode. V - 4