• Code: 7002
• Description: Toner motor C error
  • After the toner motor C drive signal is turned on, the toner motor C overcurrent detection signal is detected continuously for 180 x 50 ms.
• Causes: Defective toner motor C. Defective engine controller PWB.
• Remedy: Defective toner motor C. Replace the toner motor C.
  Defective engine controller PWB. Replace the engine controller PWB.

• Code: 7003
• Description: Toner motor M error
  • After the toner motor M drive signal is turned on, the toner motor M overcurrent detection signal is detected continuously for 180 x 50 ms.
• Causes: Defective toner motor M. Defective engine controller PWB.
• Remedy: Defective toner motor M. Replace the toner motor M.
  Defective engine controller PWB. Replace the engine controller PWB.

• Code: 7004
• Description: Toner motor Y error
  • After the toner motor Y drive signal is turned on, the toner motor Y overcurrent detection signal is detected continuously for 180 x 50 ms.
• Causes: Defective toner motor Y. Defective engine controller PWB.
• Remedy: Defective toner motor Y. Replace the toner motor Y.
  Defective engine controller PWB. Replace the engine controller PWB.

• Code: 7101
• Description: Toner sensor K error
  • The value of input from toner sensor K is 4.5 V or more or 0.5 V or less.
• Causes: Defective toner sensor K. Defective engine controller PWB.
• Remedy: Defective toner sensor K. Replace the black process unit.
  Defective engine controller PWB. Replace the engine controller PWB.

• Code: 7102
• Description: Toner sensor C error
  • The value of input from toner sensor C is 4.5 V or more or 0.5 V or less.
• Causes: Defective toner sensor C. Defective engine controller PWB.
• Remedy: Defective toner sensor C. Replace the cyan process unit.
  Defective engine controller PWB. Replace the engine controller PWB.

• Code: 7103
• Description: Toner sensor M error
  • The value of input from toner sensor M is 4.5 V or more or 0.5 V or less.
• Causes: Defective toner sensor M. Defective engine controller PWB.
• Remedy: Defective toner sensor M. Replace the magenta process unit.
  Defective engine controller PWB. Replace the engine controller PWB.

• Code: 7104
• Description: Toner sensor Y error
  • The value of input from toner sensor Y is 4.5 V or more or 0.5 V or less.
• Causes: Defective toner sensor Y. Defective engine controller PWB.
• Remedy: Defective toner sensor Y. Replace the yellow process unit.
  Defective engine controller PWB. Replace the engine controller PWB.

• Code: 7200
• Description: Broken internal thermistor wire
  • The value of input from the internal thermistor 4.5 V or more is detected.
• Causes: Poor contact in the connector terminals. Defective engine controller PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC3 on the engine controller PWB and the continuity across the connector terminals. Repair or replace if necessary.
  Defective engine controller PWB. Replace the engine controller PWB.