Code :

Code: 670-00
Description: Engine startup error
Case 1: • When the main power is turned on or when the machine is recovering from energy saver mode, the /ENGRDY signal assertion fails. • After the main power is turned on, the engine does not make the EC response within the specified time. • After the main power is turned on, the engine does not make the PC response within the specified time. • Writing of the Rapi driver failed (not recognized by PCI). Case 2: After the /ENGRDY signal assertion, an unintended shutdown is detected.
Causes: Case 1: • The Engine Board does not start up. Case 2: The Engine Board is reset at an unintended timing. Check the connection and the contact between the Engine Board and the Controller Board again. If the error is 100% reproducible, replace the Engine Board. If the error is still not resolved after the replacement, replace the Controller Board and junction boards.
Remedy:

Code: 672
Description: Controller startup error
• When communication between the controller and the operation panel does not begin normally after the machine is powered on or if communication is interrupted after a normal startup. • When the controller does not send an attention code (FDH) or attention acknowledge code (FEH) within 15 to 30 seconds after the operation panel is reset. • After the operation panel issues a command to check the communication line with the controller at 30-second intervals, the controller fails to respond twice.
Causes: 672-10 After the machine is powered on, communication (receiving) between the controller and operation panel is unable to begin normally. 672-11 After the machine is powered on, communication (sending) between the controller and operation panel is unable to begin normally, or data transmission after startup fails. 672-12 Communication with the controller is interrupted after a normal startup. 672-13 The operation panel detects that the controller is down for reasons other than those described above. 672-99 The software for the operation panel (OCS) is aborted.
Remedy: Turn the main switch off and on.

Code: 674-02
Description: Transfer error
A PCI error interrupt is generated by the expanded engine ASIC (SELENE,SELENE2)
Causes: PCI error
Remedy: Turn the main switch off and on.

Code: 688-00
Description: PRREQ signal not asserted
The print request signal (PRREQ) signal is not asserted within the prescribed time after paper reaches the registration stand-by position,
Causes: - Noise - Engine Board error
Remedy: • Turn the power OFF and then ON • Replace the Engine Board.

Code: 790-00
Description: Maximum number of banks (paper tray units) exceeded error
When the power is turned ON, the number of mounted paper tray units is detected and the number exceeds three.
Causes: The number of mounted paper tray units exceeds the specifications.
Remedy: Reduce the number of mounted paper tray units according to the specifications.

Code: 816
Description: Error detected by Energy efficient I/O subsystem
When the energy efficient I/O subsystem detects some kind of error.
Causes: • Defective energy efficient I/O subsystem • The energy efficient I/O subsystem has found an error in the Controller Board (no response). • An error was detected during the preparation for the STR migration.
Remedy: Turn the main switch off and on.

Code: 820-00
Description: Self-diagnostic error: CPU
No interrupt is supposed to occur after the Interrupt 0 is used.
Causes: • Defective CPU device • Defective ASIC device
Remedy: Replace the Controller Board.