• Code: E021-0220
• Description: Developing Screw rotation detection error (M)
  The difference between the maximum and the minimum of sampling values detected by the ATR Sensor (M) in the Drum Unit (M) was 0.5 V or less.
• Remedy: [Related parts] - Drum Unit (M) (Unit of replacement: DEVE_UNIT_M) - Harness between the Drum Unit Relay PCB (M) (UN09/J6002) and the DC Controller PCB (UN04/J160) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - Drum Unit Relay PCB (M) (UN09) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - Drum Unit Memory PCB (M) (UN13) (Unit of replacement: DEVE_UNIT_M) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) - Main Drive Unit (Unit of replacement: MAIN DRIVE 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: E021-0320
• Description: Developing Screw rotation detection error (C)
  The difference between the maximum and the minimum of sampling values detected by the ATR Sensor (C) in the Drum Unit (C) was 0.5 V or less.
• Remedy: [Related parts] - Drum Unit (C) (Unit of replacement: DEVE_UNIT_C) - Harness between the Drum Unit Relay PCB (C) (UN10/J6003) and the DC Controller PCB (UN04/J162) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - Drum Unit Relay PCB (C) (UN10) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - Drum Unit Memory PCB (C) (UN14) (Unit of replacement: DEVE_UNIT_C) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) - Main Drive Unit (Unit of replacement: MAIN DRIVE 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: E021-0420
• Description: Developing Screw rotation detection error (Bk)
  The difference between the maximum and the minimum of sampling values detected by the ATR Sensor (Bk) in the Drum Unit (Bk) was 0.5 V or less.
• Remedy: [Related parts] - Drum Unit (Bk) (Unit of replacement: P-UNIT_BK) - Harness between the Drum Unit Relay PCB (Bk) (UN11/ J6004) and the DC Controller PCB (UN04/J162) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - Drum Unit Relay PCB (Bk) (UN11) (Unit of replacement: PROCESS CONTROL PCB ASS’Y) - Drum Unit Memory PCB (Bk) (UN15) (Unit of replacement: P-UNIT_BK) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) - Main Drive Unit (Unit of replacement: MAIN DRIVE 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 (Bk) 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: E025-0110
• Description: Bottle Motor (YM) error (Y)
  The Bottle Rotation Sensor (Y) did not detect rotation for 5 times in a row although 0.8 sec (2 sec in the case of right before replacement of the Toner Container) has passed after the Bottle Motor (YM) was turned ON.
• Remedy: [Related parts] - Toner Container (Y) - Harness between the DC Controller PCB (UN04/J155) and the Bottle Motor (YM) (M09/J6301) (Unit of replacement: CABLE, MAIN) - Harnesses from the DC Controller PCB to the Bottle Rotation Sensor (Y) 1. DC Controller PCB (UN04/J151) to Relay Connector (3P) (Unit of replacement: CABLE, MAIN) 2. Relay Connector (3P) to Bottle Rotation Sensor (Y) (PS06/ J5301) (Unit of replacement: CABLE, BOTTLE SENSOR, Y/C) - Bottle Rotation Sensor (Y) (PS06) (Unit of replacement: PHOTO INTERRUPTER) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) - Bottle Drive Unit (YM) (Unit of replacement: BOTTLE DRIVE ASSEMBLY) - Hopper Unit (Y) (Unit of replacement: HOPPER ASSEMBLY) [Points to note at work] - Be sure to turn over the Door Lock Lever when removing the Bottle Drive Unit (YM) and rotating the drive section by hand. - 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. [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: E025-0168
• Description: No toner detection error (Y)
  The state without toner was detected although the recovery sequence was performed for 5 times after replacement of the Toner Container (Y).
• Remedy: [Related parts] - Main Drive Unit (Unit of replacement: MAIN DRIVE ASSEMBLY) - Hopper Unit (Y) (Unit of replacement: HOPPER ASSEMBLY) - Toner Bottle Mount Unit (Y) (Unit of replacement: BOTTLE MOUNT ASSEMBLY) - Drum Unit (Y) (Unit of replacement: DEVE_UNIT_Y) - Toner Container (Y) [Remedy] Check/replace the related parts. [Reference] If a user inserts an empty Toner Container (Y) repeatedly, the error may occur.

• Code: E025-0210
• Description: Bottle Motor (YM) error (M)
  The Bottle Rotation Sensor (M) did not detect rotation for 5 times in a row although 1.5 sec (2 sec in the case of right before replacement of the Toner Container) has passed after the Bottle Motor (YM) was turned ON.
• Remedy: [Related parts] - Toner Container (M) - Harness between the DC Controller PCB (UN04/J155) and the Bottle Motor (YM) (M09/J6301) (Unit of replacement: CABLE, MAIN) - Harnesses from the DC Controller PCB to the Bottle Rotation Sensor (M) 1. DC Controller PCB (UN04/J151) to Relay Connector (3P) (Unit of replacement: CABLE, MAIN) 2. Relay Connector (3P) to Bottle Rotation Sensor (M) (PS07/ J5302) (Unit of replacement: CABLE, BOTTLE SENSOR, M/K) - Bottle Rotation Sensor (M) (PS07) (Unit of replacement: PHOTO INTERRUPTER) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) - Bottle Drive Unit (YM) (Unit of replacement: BOTTLE DRIVE ASSEMBLY) - Hopper Unit (M) (Unit of replacement: HOPPER ASSEMBLY) [Points to note at work] - Be sure to turn over the Door Lock Lever when removing the Bottle Drive Unit (YM) and rotating the drive section by hand. - 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. [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: E025-0268
• Description: No toner detection error (M)
  The state without toner was detected although the recovery sequence was performed for 5 times after replacement of the Toner Container (M).
• Remedy: [Related parts] - Main Drive Unit (Unit of replacement: MAIN DRIVE ASSEMBLY) - Hopper Unit (M) (Unit of replacement: HOPPER ASSEMBLY) - Toner Bottle Mount Unit (M) (Unit of replacement: BOTTLE MOUNT ASSEMBLY) - Drum Unit (M) (Unit of replacement: DEVE_UNIT_M) - Toner Container (M) [Remedy] Check/replace the related parts. [Reference] If a user inserts an empty Toner Container (M) repeatedly, the error may occur.

• Code: E025-0310
• Description: Bottle Motor (CK) error (C)
  The Bottle Rotation Sensor (C) did not detect rotation for 5 times in a row although 1.5 sec (2 sec in the case of right before replacement of the Toner Container) has passed after the Bottle Motor (CK) was turned ON.
• Remedy: [Related parts] - Toner Container (C) - Harness between the DC Controller PCB (UN04/J155) and the Bottle Motor (CK) (M10/J6302) (Unit of replacement: CABLE, MAIN) - Harnesses from the DC Controller PCB to the Bottle Rotation Sensor (C) 1. DC Controller PCB (UN04/J151) to Relay Connector (3P) (Unit of replacement: CABLE, MAIN) 2. Relay Connector (3P) to Bottle Rotation Sensor (C) (PS08/ J5303) (Unit of replacement: CABLE, BOTTLE SENSOR, Y/C) - Bottle Rotation Sensor (C) (PS08) (Unit of replacement: PHOTO INTERRUPTER) - DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) - Bottle Drive Unit (CK) (Unit of replacement: BOTTLE DRIVE ASSEMBLY) - Hopper Unit (C) (Unit of replacement: HOPPER ASSEMBLY) [Points to note at work] - Be sure to turn over the Door Lock Lever when removing the Bottle Drive Unit (CK) and rotating the drive section by hand. - 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. [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