• Code: E024-0002
• Description: Error in toner level sensor
• Causes: Abnormal output of toner level sensor (Cyan) Cause: problem in toner cartridge / high-voltage power supply PCB / DC controller PCB
• Remedy: • Replace toner cartridges • Replace high-voltage power supply PCBs • Replace DC controller PCBs

• Code: E024-0003
• Description: Error in toner level sensor
• Causes: Abnormal output of toner level sensor (Black) Cause: problem in toner cartridge / high-voltage power supply PCB / DC controller PCB
• Remedy: • Replace toner cartridges • Replace high-voltage power supply PCBs • Replace DC controller PCBs

• Code: E052-0000
• Description: Error in 2-sided unit detection
• Causes: Failed to detect 2-sided unit Cause: improper 2-sided unit connection
• Remedy: • Check connectors of 2-sided unit and DC controller PCB • Replace DC controller PCBs

• Code: E066-0000
• Description: Error in environment sensor
• Causes: Error in environment sensor Cause: Problem in environment sensor / DC controller PCB
• Remedy: • Check connectors of environment sensor and DC controller PCB. • Replace environment sensor • Replace DC controller PCBs

• Code: E070-0000
• Description: Error in ITB / TOP sensor
• Causes: Error in ITB / TOP sensor Cause: Problem in ITB / TOP sensor / DC controller PCB
• Remedy: • Check connectors of ITB unit and DC controller PCB. • Replace ITB units • Replace DC controller PCBs

• Code: E078-0000
• Description: Error in primary transfer roller contact
• Causes: Primary transfer roller contact mechanism does not normally function Cause: problem in contact mechanism / ITB tension sensor / pickup motor / DC controller PCB
• Remedy: • Check contact mechanism • Check connectors of ITB tension sensor, pickup motor and DC controller PCB. • Replace ITB tension sensors • Replace pickup motors / DC controller PCBs

• Code: E100-0000
• Description: Error in scanner motor/laser unit/BD
• Causes: Failure in Yellow optical unit Cause: Problem in laser scanner unit / DC controller PCB
• Remedy: • Check connectors of laser scanner unit and DC controller PCB • Replace laser scanner units • Replace DC controller PCBs

• Code: E100-0001
• Description: Error in scanner motor/laser unit/BD
• Causes: Failure in Magenta optical unit Cause: Problem in laser scanner unit / DC controller PCB
• Remedy: • Check connectors of laser scanner unit and DC controller PCB • Replace laser scanner units • Replace DC controller PCBs