Service Call Conditions 
G179 4-2  SM 
  When a Level “A” or “B” SC occurs while in an SP mode, the machine cannot 
display the SC number. If this occurs, check the SC number after leaving the SP 
mode.  
  The machine reboots automatically when the machine issues a Level “D” SC code. 
This is done for Level “D” SC codes only.   
 
  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.  
 
  The main power LED ( ) lights or flashes while the main machine is 
communicating with the network server, or while the machine is accessing the 
hard disk or memory for reading or writing data.