EPSON WF-C20590 Service Manual Page 251-300

EPSON WF-C20590 Revision A Troubleshooting Troubleshooting Errors with Error Indication 251 Confidential PAPER JAM BEFORE REACHING PAPER SENSOR, INTERMEDIATE PATH POST-JUNCTION PAPER (RIGHT) Causes The Paper Sensor, Intermediate Path Post-Junction Paper does not operate even after the set time has passed after start feeding by Intermediate Path Right Paper Flip Motor again. Failure related parts Finisher Intermediate Roller 4,5,6,11 R Switching Solenoid Paper Sensor, Intermediate Path Post-Junction Paper Bridge Unit Board Intermediate Path Right Paper Flip Motor Intermediate Path Paper Feed Motor Troubleshooting 5 Check the connection of L Switching Solenoid Make sure the connector is inserted to the solenoid all the way seated. Connect them firmly. Replace the parts one by one. Solenoid Mechanical Controller Board 6 Check the operation of Intermediate Path Left Paper Flip Motor Run the individual action check for the motor. Judgment: Does it work normally without abnormal sound? Replace the train parts. Go to step 7 7 Check the operation of Paper Sensor, Intermediate Path Post-Junction Paper Run the individual action check for the sensor. Judgment: Does the signal change by loading/ unloading paper? Go to step 9 Go to step 8 8 Check the installation of Paper Sensor, Intermediate Path Post-Junction Paper and connector Make sure the sensor is installed normally or the connector is inserted all the way seated. Connect them firmly. Replace the parts one by one. Sensor Mechanical Controller Board 9 Check the operation of Intermediate Path Paper Feed Motor Run the individual action check for the motor Judgment: Does it work normally without abnormal sound? Replace the train parts. Replace the Mechanical Controller Board Step Check and Measure YES NO Step Check and Measure YES NO 1 Check the Paper Feed path Is there any foreign object or paper dust in the paper feed path? Remove the foreign object and paper dust. Go to step 2 2 Check the dirt and installation of Paper Feed Roller/Sensor. Are the roller and sensor specified in the part to be checked installed properly? Make sure no dirt remains on the surfaces. Go to step 3 Clean and reinstall the Paper Feed Roller/Sensor. 3 Check the deformation and wear of Paper Feed Roller Make sure there is no deformed or worn out on the roller specified in the part to be checked. Replace the corresponding paper feed roller. Go to step 4 4 Check the operation of R Switching Solenoid Run the individual action check for suction/release operation of solenoid Judgment: Operating sound Go to step 6 Go to step 5
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EPSON WF-C20590 Service Manual Page 251-300