Epson WF-C5790 - 100073 FB BS+ Excess Speed Detection; FB PID Excess Speed Detection

EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A
Troubleshooting Troubleshooting procedure 97
Confidential
ADF/SCN ERROR (8)
 Error name
 FB PID excess speed detection (flatbed) (error code: 100065)
 FB BS+ excess speed detection (flatbed) (error code: 100073)
 Cause
 State in which driven at unexpected speed (PID: fast, BS: slow) for control.
 Suspected cause
 FFC disconnection insertion failure in ADF/SCN
 Mechanical load error (light)
 Main Board failure
 SCN Encoder failure
 SCN Scale is dirty or damaged.
 Troubleshooting
Step Check and measure Yes No
1
Visually check the FFCs of the ADF/SCN Unit.
Check the FFCs (x2) in ADF/SCN to make sure that it is not inserted
obliquely or disconnected.
Go to step 2
 Correctly insert the two FFCs.

If FFC is damaged, replace the ADF/SCN
Unit. (Replace the unit even if one of the two
FFCs is damaged.)
2
Replace the ADF/SCN Unit.
Does the error occur after replacing the ADF/SCN Unit?
Go to step 3 End
3
Replace the Main Board Assy.
Does the error occur after replacing the Main Board Assy?
Contact the EPSON Service Department. End