Code :

Code: 636-001
Description: SD Card Error Expanded authentication module error
There is no expanded authentication module in the machine. The SD card or the file of the expanded authentication module is broken. There is no DESS module in the machine.
Causes:

Code: 636-002
Description: SD Card Error Version error
The version of the expanded authentication module is not correct.
Causes:

Code: 670
Description: Engine startup error
Just after the main power is turned on or the machine is recovering from auto off mode, the engine ready signal assertion fails. Just after the main power is turned on, the engine does not respond.
Causes: • Poor connection between the BCU and controller board • Defective BCU • Defective controller board

Code: 672
Description: Controller-to-operation panel communication error at startup
After powering on the machine, communication between the controller and operation panel does not begin, or the communication is interrupted after a normal startup.
Causes: • Controller stalled • Controller board installed incorrectly • Defective controller board • Operation panel connector loose or defective • Poor connection of DIMM and optional boards on the controller board

Code: 685
Description: SBU/IPU communication error
While data is sent between the scanner and BCU board, a communication error has occurred.
Causes: • Defective scanner unit cable • Defective SBU board • Defective BCU board

Code: 687
Description: Memory address command error
The BCU does not receive a memory address command from the controller 120 seconds after paper is in the position for registration.
Causes: • Loose connection • Defective controller • Defective BCU