EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A
Troubleshooting Troubleshooting procedure 90
Confidential
ADF/SCN ERROR (1)
Error name
ADF PID excess speed detection (error code: 100001)
Cause
State in which driven at unexpected speed (fast) for control.
Suspected cause
Mechanical load error (light)
Main Board failure
ADF Encoder board failure
ADF 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, disconnected, or damaged.
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
Visually check the gear train parts.
Check the gear train parts to make sure that there is no foreign object on or
damage to them.
Go to step 3
Remove the foreign object.
Replace the ADF/SCN Unit if the gear is
damaged.
3
Replace the ADF/SCN Unit.
Does the error occur after replacing the ADF/SCN Unit?
Replace the Main Board Assy.
(If the trouble is not resolved, contact the
EPSON Service Department.)
End