Epson WorkForce Pro WP4020
Troubleshooting. 3. Error is indicated during printing nozzle check pattern 3
Multi-feed error
Only for manual duplex printing
Occurrence Condition
This error occurs on the following case.
• A paper is ejected without printing during paper loading operation.
• Actual paper length is longer than theoretical one.
Occurrence Timing
• During feeding paper
• During loading paper
• During ejecting paper
Remedy
• Replace PE Sensor Lever
• Replace PE Sensor
• Replace PW Sensor
• Replace Main Board
• Perform the operation check and replace Paper Stopper Assy if necessary
Paper length mismatch error for duplex printing
Occurrence Condition
This error occurs when actual paper size is not matched to theoretical one (both shorter and longer).
Occurrence Timing
• During auto duplex printing
• During receiving FAX data
Remedy
• Replace PE Sensor Lever
• Replace PE Sensor
• Replace PW Sensor
• Replace Main Board
No paper cassette error
Occurrence Condition
This error occurs when Cassette Assy 1st cannot be detected. (The error occurs to the Cassette Assy 2nd in the same way.)
Occurrence Timing
• During feeding paper
Remedy
• Check connection for Paper Stopper Lever Sensor cable
• Replace Paper Stopper Lever Sensor