Adf Pid Reverse Detection; Adf Pid Lock Detection; Adf Pid Excess Load - Epson WF-C5790 Service Manual

EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a
ADF/SCN ERROR (2)
 Error name
 ADF PID reverse detection (error code: 100002)
 ADF PID lock detection (error code: 100003)
 ADF PID excess load (error code: 100005)
 Cause
 When rotated in the opposite direction to rotation direction
(There was a sudden load error, and the ADF motor rotated in the opposite direction in reaction to it)
 State in which load of the ADF Motor exceeds expected load, and the motor does not rotate at all
 State in which load of the ADF Motor exceeds expected load
 Suspected cause
 Collision with a foreign object
 Excess sliding load (such as grease shortage, etc.)
 FFC disconnection insertion failure in ADF/SCN
 ADF Encoder failure
 ADF Scale is dirty or damaged.
 ADF Motor failure
 Main Board failure
 Troubleshooting
Step
Visually check the FFCs of the ADF/SCN Unit.
Check the FFCs (x2) in ADF/SCN to make sure that it is not inserted
1
obliquely, disconnected, or damaged.
Visually check the gear train parts.
2
Check the gear train parts to make sure that there is no foreign object on or
damage to them.
Replace the ADF/SCN Unit.
3
Does the error occur after replacing the ADF/SCN Unit?
Troubleshooting
Check and measure
Troubleshooting procedure
Yes
Go to step 2
Go to step 3
Replace the Main Board Assy.
(If the trouble is not resolved, contact the
EPSON Service Department.)
Revision A
No
 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.)
 Remove the foreign object.
 Replace the ADF/SCN Unit if the gear is
damaged.
End
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