Service Call Conditions 
D017/D018/D019/D020 4-32  SM 
901  D  Mechanical total counter error 
 
The counter was removed during 
standby or while it is operating, 
possibly damaging he connector. 
  Check the connection of the 
mechanical counter 
 Counter defective 
 
920 D Printer Error 1 
 
An internal application error was 
detected and operation cannot 
continue. 
 Software defective 
 Insufficient memory 
 
Printer error 2 
921 B 
When the application started, the 
necessary font was not on the SD 
card. 
  Font not on the SD card 
 
925  D  Network File Error 
 
The file that manages NetFile is 
corrupted and operation cannot 
continue. 
 Software defective 
  Files on the HDD corrupted 
 
Software performance error 
D 
The software attempted to perform an unexpected operation due to: 1) 
software bug, 2) incorrect internal parameter, 3) insufficient working 
memory. 
990 
 
  Turn the machine power off/on 
  Reinstall the controller and/or main firmware 
Note: When this SC occurs, the file name, address, and data will be stored 
in NVRAM. This information can be checked by using SP7-403. Note the 
above data and the situation in which this SC occurs. Then report the data 
and conditions to your technical control center.