Recovery Check Procedure...........................................................................................................1057
Adjustment after Recovery.............................................................................................................1057
When SC501, SC502, SC503, or SC504 (Paper Tray Error) is displayed....................................1058
Solution:.......................................................................................................................................... 1058
When SC549 (Shield Operation Error Detection) is Displayed.........................................................1060
Troubleshooting Flowchart............................................................................................................ 1060
Fusing Shield Check.......................................................................................................................1060
Solution........................................................................................................................................... 1064
Isolation Diagram of SC663, 664, 665, 667, 668, and 670-01...................................................1065
When SC670 (Engine start up error) is displayed...............................................................................1066
Cause:............................................................................................................................................. 1066
Solution:.......................................................................................................................................... 1066
When SC672 (Controller start up error) is displayed......................................................................... 1067
Symptom:........................................................................................................................................ 1067
Cause:............................................................................................................................................. 1068
Solution:.......................................................................................................................................... 1068
[A]: LEDs on the controller board..................................................................................................1070
[B]: Abnormal mode: LEDs on the controller board.................................................................... 1071
[C]: Reconnecting and replacing the USB cable.........................................................................1072
[D]: Replacing the Memory...........................................................................................................1074
[E]: CMOS clear............................................................................................................................ 1075
[F]: Fuse on the IPU.........................................................................................................................1076
[G]: Replacing the USB cable and the operation panel.............................................................1076
Jam Detection.............................................................................................................................................. 1083
Jam Display............................................................................................................................................. 1083
Clearing a paper jam............................................................................................................................. 1083
Paper Jam History................................................................................................................................... 1084
History checking method............................................................................................................... 1084
Paper Jam Display..........................................................................................................................1084
Jam Codes and Display Codes............................................................................................................. 1084
Paper Size Code.....................................................................................................................................1097
Sensor Locations..................................................................................................................................... 1098
Troubleshooting for Transport/Paper Feeding of the Machine.............................................................. 1099
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