20 June 2005  SERVICE PROGRAM MODE TABLES 
 
5-1 
Service
Tables
5. SERVICE TABLES 
CAUTION 
Never turn off the main power switch when the power LED is lit or flashing. 
To avoid damaging the hard disk or memory, press the operation power 
switch to switch the power off, wait for the power LED to go off, and then 
switch the main power switch off.  
 
NOTE:  The main power LED lights or flashes while the platen cover or ARDF is 
open, while the main machine is communicating with a facsimile or the 
network server, or while the machine is accessing the hard disk or memory 
for reading or writing data. 
 
5.1.1  SERVICE PROGRAM MODE OPERATION 
The service program (SP) mode is used to check electrical data, change modes, 
and adjust values. 
 
CAUTION 
Never turn off the main power switch when the power LED is lit or flashing. 
To avoid damaging the hard disk or memory, press the operation switch to 
switch the power off, wait for the power LED to go off, and then switch the 
main power switch off.  
 
Service Mode Lock/Unlock 
At locations where the machine contains sensitive data, the customer engineer 
cannot operate the machine until the Administrator turns the service mode lock off. 
This function makes sure that work on the machine is always done with the 
permission of the Administrator. 
1.  If you cannot go into the SP mode, ask the Administrator to log in with the User 
Tool and then set “Service Mode Lock” to OFF. After he or she logs in: 
[User Tools] > System Settings > Administrator Tools > Service Mode Lock > OFF 
• This unlocks the machine and lets you get access to all the SP codes. 
• The service technician can do servicing on the machine and turn the machine 
off and on. It is not necessary to ask the Administrator to log in again each 
time the machine is turned on. 
2.  If you must use the printer bit switches, go into the SP mode and set SP5169 to 
“1”.  
3.  After machine servicing is completed: 
• Change SP5169 from “1” to “0”.  
• Turn the machine off and on. 
• Tell the administrator that you completed servicing the machine. 
• The administrator will then set the “Service Mode Lock” to ON.