• Code: E020-02A8
• Description: ATR Sensor (M) output error
  The output value of the ATR Sensor (M) in the Drum Unit (M) did not fall within the range from 10 or higher to 245 or less for 2 consecutive times during printing.
• Remedy: [Related parts] - ATR Sensor (M) (UN35) (Unit of replacement: DEVE_UNIT_M) - Drum Unit (M) (Unit of replacement: DEVE_UNIT_M) - Harness between the ATR Sensor (M) (UN35/J6022) and the Drum Unit Memory PCB (M) (UN13/J6012) (Unit of replacement: DEVE_UNIT_M) - Harness between the DC Controller PCB (UN04/J160) and the Drum Unit Relay PCB (M) (UN09/J6002) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) [Points to note at work] - When checking the harness/cable or connector, perform the following work. 1. Disconnect and then connect the connector to check that there is no bent pin and cable disconnection. 2. Visually check that the harness is not caught or open circuit. 3. If there is any error, replace the corresponding harness/ cable. - If the Drum Unit Memory PCB (M) is soiled, clean it with a blower. [Remedy] Check/replace the related parts. [Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: E020-02B8
• Description: ATR Sensor (M) output error
  a. The output value of the ATR Sensor (M) in the Drum Unit (M) did not fall within the range from 10 or higher to 990 or less for 2 consecutive times at initialization. b. The output value did not exceed 140 although the control voltage of the ATR Sensor (M) in the Drum Unit (M) was increased to 248 or higher, or it did not fall below 140 although the voltage was decreased to 8 at initialization.
• Remedy: [Related parts] - ATR Sensor (M) (UN35) (Unit of replacement: DEVE_UNIT_M) - Drum Unit (M) (Unit of replacement: DEVE_UNIT_M) - Harness between the ATR Sensor (M) (UN35/J6022) and the Drum Unit Memory PCB (M) (UN13/J6012) (Unit of replacement: DEVE_UNIT_M) - Harness between the DC Controller PCB (UN04/J160) and the Drum Unit Relay PCB (M) (UN09/J6002) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) [Points to note at work] - When checking the harness/cable or connector, perform the following work. 1. Disconnect and then connect the connector to check that there is no bent pin and cable disconnection. 2. Visually check that the harness is not caught or open circuit. 3. If there is any error, replace the corresponding harness/ cable. - If the Drum Unit Memory PCB (M) is soiled, clean it with a blower. [Remedy] Check/replace the related parts. [Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: E020-02C0
• Description: Error in take-up of Sealing Member (M)
  The patch output value (SigR) failed to be 900 or less during initialization of the Drum Unit (M).
• Remedy: [Remedy] Replace the Drum Unit (M). (Unit of replacement: DEVE_UNIT_M)

• Code: E020-02F0
• Description: Error in toner density (M) at communication failure of the Drum Unit Memory PCB (M)
  Communication between the DC Controller PCB and the Drum Unit Memory PCB (M) was not available, and the output value (SigR) of the ATR Sensor (M) did not fall within the range from 50 or higher to 800 or less for 2 consecutive times.
• Remedy: [Related parts] - Harness between the DC Controller PCB (UN04/J160) and the Drum Unit Relay PCB (M) (UN09/J6002) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - Drum Unit (M) (Unit of replacement: DEVE_UNIT_M) [Points to note at work] - When checking the harness/cable or connector, perform the following work. 1. Disconnect and then connect the connector to check that there is no bent pin and cable disconnection. 2. Visually check that the harness is not caught or open circuit. 3. If there is any error, replace the corresponding harness/ cable. - If the Drum Unit Memory PCB (M) is soiled, clean it with a blower. [Remedy] Check/replace the related parts.

• Code: E020-03A8
• Description: ATR Sensor (C) output error
  The output value of the ATR Sensor (C) in the Drum Unit (C) did not fall within the range from 10 or higher to 245 or less for 2 consecutive times during printing.
• Remedy: [Related parts] - ATR Sensor (C) (UN36) (Unit of replacement: DEVE_UNIT_C) - Drum Unit (C) (Unit of replacement: DEVE_UNIT_C) - Harness between the ATR Sensor (C) (UN36/J6023) and the Drum Unit Memory PCB (C) (UN14/J6013) (Unit of replacement: DEVE_UNIT_C) - Harness between the DC Controller PCB (UN04/J162) and the Drum Unit Relay PCB (C) (UN10/J6003) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) [Points to note at work] - When checking the harness/cable or connector, perform the following work. 1. Disconnect and then connect the connector to check that there is no bent pin and cable disconnection. 2. Visually check that the harness is not caught or open circuit. 3. If there is any error, replace the corresponding harness/ cable. - If the Drum Unit Memory PCB (C) is soiled, clean it with a blower. [Remedy] Check/replace the related parts. [Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: E020-03B8
• Description: ATR Sensor (C) output error
  a. The output value of the ATR Sensor (C) in the Drum Unit (C) did not fall within the range from 10 or higher to 990 or less for 2 consecutive times at initialization. b. The output value did not exceed 140 although the control voltage of the ATR Sensor (C) in the Drum Unit (C) was increased to 248 or higher, or it did not fall below 140 although the voltage was decreased to 8 at initialization.
• Remedy: [Related parts] - ATR Sensor (C) (UN36) (Unit of replacement: DEVE_UNIT_C) - Drum Unit (C) (Unit of replacement: DEVE_UNIT_C) - Harness between the ATR Sensor (C) (UN36/J6023) and the Drum Unit Memory PCB (C) (UN14/J6013) (Unit of replacement: DEVE_UNIT_C) - Harness between the DC Controller PCB (UN04/J162) and the Drum Unit Relay PCB (C) (UN10/J6003) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) [Points to note at work] - When checking the harness/cable or connector, perform the following work. 1. Disconnect and then connect the connector to check that there is no bent pin and cable disconnection. 2. Visually check that the harness is not caught or open circuit. 3. If there is any error, replace the corresponding harness/ cable. - If the Drum Unit Memory PCB (C) is soiled, clean it with a blower. [Remedy] Check/replace the related parts. [Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: E020-03C0
• Description: Error in take-up of Sealing Member (C)
  The patch output value (SigR) failed to be 900 or less during initialization of the Drum Unit (C).
• Remedy: [Remedy] Replace the Drum Unit (C). (Unit of replacement: DEVE_UNIT_C)

• Code: E020-03F0
• Description: Error in toner density (C) at communication failure of the Drum Unit Memory PCB (C)
  Communication between the DC Controller PCB and the Drum Unit Memory PCB (C) was not available, and the output value (SigR) of the ATR Sensor (C) did not fall within the range from 50 or higher to 800 or less for 2 consecutive times.
• Remedy: [Related parts] - Harness between the DC Controller PCB (UN04/J162) and the Drum Unit Relay PCB (Y) (UN10/J6003) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - Drum Unit (C) (Unit of replacement: DEVE_UNIT_C) [Points to note at work] - When checking the harness/cable or connector, perform the following work. 1. Disconnect and then connect the connector to check that there is no bent pin and cable disconnection. 2. Visually check that the harness is not caught or open circuit. 3. If there is any error, replace the corresponding harness/ cable. - If the Drum Unit Memory PCB (C) is soiled, clean it with a blower. [Remedy] Check/replace the related parts.