• Code: 412-0006-04
• Description: Fan error
• Causes: Stop of fan was detected after rotation signal for the DADF Cooling Fan 1/2 was transmitted.
• Remedy: [Related parts] - Harness between DADF Cooling Fan 2 (FM2/J620) and the DADF Driver PCB (UN03/J408) (Unit of replacement: CABLE, REAR MOTOR, 2) - DADF Cooling Fan 1 (FM1) - DADF Cooling Fan 2 (FM2) - DADF Driver PCB (UN03) (Unit of replacement: DF DRIVER PCB ASSEMBLY) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 423-0001-04
• Description: SDRAM error in the Reader Controller PCB
• Causes: Either an access error to SDRAM in the Reader Controller PCB or an error at data inspection was detected.
• Remedy: [Remedy] Replace the Reader Controller PCB (PCB1). (Unit of replacement: READER CONTROLLER PCB ASSEMBLY) [Reference] Before replacing the Reader 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> RSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMRES

• Code: 500-0001-05
• Description: Communication error
• Causes: A communication error between the DC Controller PCB and the POD Deck was detected.
• Remedy: [Related parts] - Harnesses from the DC Controller PCB to the Deck Driver PCB 1. DC Controller PCB (UN01/J461) to Relay Connector (9P) (Unit of replacement: CABLE, SIGNAL) 2. Relay PCB (UN86/J502) to Relay Connector (4P) (Unit of replacement: CABLE, DECK, DC) 3. Relay Connector (9P and 4P) to Deck Lattice Connector (Unit of replacement: CABLE, DECK CONNECTOR) 4. Deck Lattice Connector to Deck Driver PCB - Deck Driver PCB - DC Controller PCB (UN01) (Unit of replacement: DC CONTROLLER PCB ASS'Y) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Check that the Power Supply Cable is connected to the deck/there is electrical current in the outlet/breaker of the deck is ON. 2. Check/replace the related harness/cable, connector and parts. [Reference] - After replacement of the Deck Driver PCB, refer to "Adjustments> Adjustment when Replacing the Parts" in the Service Manual. - 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: 500-0002-05
• Description: Communication error
• Causes: A communication error between the DC Controller PCB and the Side Paper Deck was detected.
• Remedy: [Related parts] - Harnesses from the DC Controller PCB to the Deck Driver PCB 1. DC Controller PCB (UN01/J461) to Relay Connector (9P) (Unit of replacement: CABLE, SIGNAL) 2. Relay PCB (UN86/J502) to Relay Connector (4P) (Unit of replacement: CABLE, DECK, DC) 3. Relay Connector (9P and 4P) to Deck Lattice Connector (Unit of replacement: CABLE, DECK CONNECTOR) 4. Deck Lattice Connector to Deck Driver PCB - Deck Driver PCB - DC Controller PCB (UN01) (Unit of replacement: DC CONTROLLER PCB ASS'Y) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] - After replacement of the Deck Driver PCB, refer to "Adjustments> Adjustment when Replacing the Parts" in the Service Manual. - 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: 503-0021-02
• Description: Error in communication between the Finisher and Saddle Unit (Finisher-V1)
• Causes: Communication error between the Finisher Controller PCB and the Saddle Stitcher Controller PCB was detected. (Command transmission error)
• Remedy: STAPLE FIN-V1/BOOKLET FIN-V1 [Related parts] - Harnesses and connectors from the Finisher Controller PCB to the Saddle Stitcher Controller PCB - Finisher Controller PCB (PCB101) - Saddle Stitcher Controller PCB (PCB201) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Check/replace the harness and connector between the Finisher Controller PCB and the Saddle Stitcher Controller PCB. 2. Replace the Finisher Controller PCB. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> When Replacing the Parts" in the Service Manual. 3. Replace the Saddle Stitcher Controller PCB.

• Code: 503-0022-02
• Description: Error in communication between the Finisher and Saddle Unit (Finisher-V1)
• Causes: Communication error between the Finisher Controller PCB and the Saddle Stitcher Controller PCB was detected. (Command reception error)
• Remedy: STAPLE FIN-V1/BOOKLET FIN-V1 [Related parts] - Harnesses and connectors from the Finisher Controller PCB to the Saddle Stitcher Controller PCB - Finisher Controller PCB (PCB101) - Saddle Stitcher Controller PCB (PCB201) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Check/replace the harness and connector between the Finisher Controller PCB and the Saddle Stitcher Controller PCB. 2. Replace the Finisher Controller PCB. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> When Replacing the Parts" in the Service Manual. 3. Replace the Saddle Stitcher Controller PCB.

• Code: 503-0031-02
• Description: Error in communication between the Finisher and Puncher Unit (Finisher-V1)
• Causes: Communication error between the Finisher Controller PCB and the Puncher Controller PCB was detected. (Command transmission error)
• Remedy: STAPLE FIN-V1/BOOKLET FIN-V1 [Related parts] - Harnesses and connectors from the Finisher Controller PCB to the Puncher Controller PCB - Finisher Controller PCB (PCB101) - Puncher Controller PCB (PCB301) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Check/replace the harness and connector between the Finisher Controller PCB and the Puncher Controller PCB. 2. Replace the Finisher Controller PCB. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> When Replacing the Parts" in the Service Manual. 3. Replace the Puncher Controller PCB. [Reference] When replacing the Puncher Controller PCB, refer to "Adjustment> When Replacing the Parts" in the Service Manual.

• Code: 503-0032-02
• Description: Error in communication between the Finisher and Puncher Unit (Finisher-V1)
• Causes: Communication error between the Finisher Controller PCB and the Puncher Controller PCB was detected. (Command reception error)
• Remedy: STAPLE FIN-V1/BOOKLET FIN-V1 [Related parts] - Harnesses and connectors from the Finisher Controller PCB to the Puncher Controller PCB - Finisher Controller PCB (PCB101) - Puncher Controller PCB (PCB301) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Check/replace the harness and connector between the Finisher Controller PCB and the Puncher Controller PCB. 2. Replace the Finisher Controller PCB. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> When Replacing the Parts" in the Service Manual. 3. Replace the Puncher Controller PCB. [Reference] When replacing the Puncher Controller PCB, refer to "Adjustment> When Replacing the Parts" in the Service Manual.