Controller Error - Ricoh G112 Service Manual

4.2 CONTROLLER ERROR

The following table describes the controller error codes. These codes are displayed
at power-on, or after the power-on self test, if an error occurs.
Code Description
640 Engine to controller
communication error.
641 Engine to controller
communication error (no
answer).
670 Engine response error
671 Controller-to-operation panel
communication error at startup
800 Video data error
818 System timeout error
819 Kernal end error
820 Controller CPU error
821 CPU and ASIC timer error
822 HDD timeout error
823 NIB self test error
824 NVRAM error
827 SDRAM error
828 Flash ROM error
829 Optional RAM error
835 Parallel interface error
836 Font ROM error
837 Optional font ROM error
838 Clock generator error
SM
Required Action
• Examine the connection between the
controller and the engine board.
• Replace the engine board if the error is
frequent.
• Replace the controller if the error is frequent.
• Examine the connection between the
controller and the engine board.
• Replace the engine board if the error is
frequent.
• Engine board installed incorrectly
• Engine board defective
• Controller board defective
• Controller stalled
• Controller board installed incorrectly
• Controller board defective
• Operation panel connector loose or defective
• Examine the connection between the
controller and the engine board.
• Replace the engine board if the error is
frequent.
• Defective controller
• Replace the controller if it occurs frequently.
• HDD error
• Software application error
• RAM shortage
• Replace the controller if the error is frequent.
• Turn off the machine and turn it back on.
• Replace the controller if the error is frequent.
• Examine the connection between the HDD
and the controller
• Replace the HDD if the error is frequent.
• Turn off the machine and turn it back on.
• Examine the connection between the NIB
and the controller.
• Replace the NIB if the error is frequent.
• Replace the NVRAM if the error is frequent.
• Replace the controller if the error is frequent.
• Replace the controller if the error is frequent.
• Examine the connection of the optional
memory.
• Replace the optional memory if the error is
frequent.
• Replace the controller if the error is frequent.
• Not used for this model.
• Not used for this model.
• Replace the controller if the error is frequent.
4-5 G112/G113/G116/G094/G095/G091
CONTROLLER ERROR