Ricoh IM 550F

6.Troubleshooting
634
When SC672 (Controller start up error) is displayed
Symptom
The following occur:
SC672-
00
Communication error between operation panel and controller board (PCB15) after
machine is powered on.
SC672-
10
Communication error (receive) between operation panel and controller board (PCB15)
after machine is powered on.
SC672-
11
Communication error (send) between operation panel and controller board (PCB15) after
machine is powered on.
SC672-
12
Communication error between operation panel and controller board (PCB15) after normal
start-up.
SC672-
13
Communication error between operation panel and controller board (PCB15) after normal
start-up; Operation panel not detected.
• SC672 does not appear on the SMC report, as it is not logged.
• The Smart Operation Panel communicates with the controller via a USB cable and BiCU
(PCB16). SC672 is triggered when the panel cannot communicate with the controller.
Cause
Possible causes of SC672 include:
• USB communication path failure (USB cable, BiCU (PCB16))
• Controller board (PCB15) boot up error and/or operation panel boot up error due to abnormal break
in operations of Controller board (PCB15).
Possible causes of operation panel cannot light include: