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ERROR CODE and TROUBLESHOOTING
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[E540] ADU transport jam (Paper not reaching the duplexing unit path exit sensor)
ADU motor-1 • Motor check
(Perform the output check: 03-146)
• Connector check (CN491, CN495)
• Harness check
PFC board • Connector check (CN511, CN515)
• Board check
ADU board • Connector check (CN537, CN539)
• Board check
Drive unit, Rollers • Gear check
• Roller check
Replace parts Remarks
Duplexing unit path entrance sensor
Reverse motor
ADU motor-1
PFC board
ADU board
Rollers
Classification Error item
Paper transport jam (ADU section) Paper does not reach the duplexing unit path exit sensor after
it has passed the duplexing unit path entrance sensor.
Check item Measures
Duplexing unit path exit sensor • Sensor check
(Perform the input check: 03-[SCAN]ON/[3]/[G])
• Connector check
• Harness check
ADU motor-1 • Motor check
(Perform the output check: 03-146)
• Connector check
• Harness check
ADU motor-2 • Motor check
(Perform the output check: 03-144)
• Connector check
• Harness check
PFC board • Connector check (CN511, CN515)
• Board check
ADU board • Connector check (CN491, CN492)
• Board check
Drive unit, Rollers • Gear check
• Roller check
Replace parts Remarks
Duplexing unit path exit sensor
ADU motor-1
ADU motor-2
PFC board
Check item Measures
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