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ERROR CODE AND TROUBLESHOOTING
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[E540] Transport jam during duplex printing (paper not reaching horizontal transport sensor-3
[E550] Paper remaining jam at paper transport path
Classification Error item
Paper transport jam Paper not reaching horizontal transport sensor-3
Check item Measures
Horizontal transport sensor-2
(S21)
• Sensor check (Perform the input check: 03-[FAX]OFF/[9]/[H])
• Connector check
• Harness check.
LGC board • Connector check (CN334)
• Board check.
Drive unit, Rollers • Gear check
• Roller check
Replace parts Remarks
Horizontal transport sensor-3
LGC board
Horizontal transport rollers
Classification Error item
Paper transport jam Paper is remaining on the paper transport path when the printing has
finished. (Jam caused by a multiple paper feeding)
Check item Measures
Jamming transport path Open the cover of the unit/area whose picture is flashing on the control
panel and remove any paper on the transport path.
Feed or transport roller possibly
causing multiple feeding
Check the feed roller.
Sensor in the jamming area • Sensor check (Refer to the table below)
• Harness check
• Connector check
LGC board
• Connector check
• Board check
Replace parts Remarks
Feed or transport roller possibly
causing multiple feeding
Sensor in the jamming area Refer to the table below
LGC board
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