• Code: 1450
• Description: SM multi feed sensor backup error (side multi tray)
  When writing the data, read and write data does not match 3 times in succession. Deleting a block has failed three times in a row. Writing won’t complete in 200 ms after writing has commenced.
• Causes: Defective connector cable or poor contact in the connector. Defective SM multi feed sensor. Defective SM main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. SM multi feed sensor and SM main PWB (YC11)
  Defective SM multi feed sensor. Replace the SM multi feed sensor.
  Defective SM main PWB. Replace the SM main PWB (Refer to the service manual for the paper feeder).

• Code: 1800
• Description: Paper feeder communication error
  A communication error from paper feeder is detected 10 times in succession.
• Causes: Improper installation paper feeder. Defective connector cable or poor contact in the connector. Defective engine PWB. Defective PF main PWB.
• Remedy: Improper installation paper feeder. Follow installation instruction carefully again.
  Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF main PWB (YC13) and engine PWB (YC19)
  Defective engine PWB. Replace the engine PWB and check for correct operation.
  Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1810
• Description: Side multi tray communication error
  A communication error from paper feeder is detected 10 times in succession.
• Causes: Improper installation side multi tray. Defective connector cable or poor contact in the connector. Defective engine PWB. Defective SM main PWB.
• Remedy: Improper installation side multi tray. Follow installation instruction carefully again.
  Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. SM main PWB (YC1) and engine PWB (YC19)
  Defective engine PWB. Replace the engine PWB and check for correct operation.
  Defective SM main PWB. Replace the SM main PWB (Refer to the service manual for the paper feeder).

• Code: 1820
• Description: Side paper feeder communication error
  A communication error from paper feeder is detected 10 times in succession.
• Causes: Improper installation side paper feeder. Defective connector cable or poor contact in the connector. Defective engine PWB. Defective SM main PWB. Defective PF main PWB.
• Remedy: Improper installation side paper feeder. Follow installation instruction carefully again.
  Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF main PWB (YC13) and SM main PWB (YC4) SM main PWB (YC1) and engine PWB (YC19)
  Defective engine PWB. Replace the engine PWB and check for correct operation.
  Defective SM main PWB. Replace the SM main PWB (Refer to the service manual for the paper feeder).
  Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1900
• Description: Paper feeder EEPROM error
  When writing the data, read and write data does not match 3 times in succession.
• Causes: Defective PF main PWB. Device damage of EEPROM.
• Remedy: Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).
  Device damage of EEPROM. Contact the Service Administrative Division.

• Code: 1910
• Description: Side multi tray EEPROM error
  When writing the data, read and write data does not match 3 times in succession.
• Causes: Defective SM main PWB. Device damage of EEPROM.
• Remedy: Defective SM main PWB. Replace the SM main PWB (Refer to the service manual for the paper feeder).
  Device damage of EEPROM. Contact the Service Administrative Division.

• Code: 1920
• Description: Side paper feeder EEPROM error
  When writing the data, read and write data does not match 3 times in succession.
• Causes: Defective PF main PWB. Device damage of EEPROM.
• Remedy: Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).
  Device damage of EEPROM. Contact the Service Administrative Division.

• Code: 1950
• Description: Transfer belt unit EEPROM error
  No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated 5 times successively. Mismatch of reading data from 2 locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.
• Causes: Defective connector cable or poor contact in the connector. Defective transfer belt unit.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. Transfer belt unit and engine PWB (YC3)
  Defective transfer belt unit. Replace the transfer belt unit and check for correct operation.