• Code: 677-003
• Description: Board Power Error-4. IOB 1: 24V_3B power off error The machine detects 24 V power off from the IOB 1.
• Causes: • PSU-EA2 defective • FU107 on the IOB 1 shorted or opened
• Remedy: 1. Replace the IOB 1. 2. Check or replace the PSU-EA2.

• Code: 677-004
• Description: Board Power Error-4. IOB 1: TSNS_VCC power off error The machine detects TSNS_VCC power off from the IOB 1.
• Causes: • PSU-EA2 defective • FU104 on the IOB 1 shorted or opened • IOB 1 defective
• Remedy: 1. Replace the IOB 1. 2. Check or replace the PSU-EA2.

• Code: 681
• Description: Communication error: Toner cartridge and RFID
• Causes: -001 - • The machine detects a communication error between the toner cartridge and RFID at starting the communication. • The machine cannot recover the communication between the toner cartridge and RFID after the third communication retry. • RFID defective • ASAP I/F disconnected • Incorrect communication due to noise • ID chip defective or not installed in a toner cartridge -001 to -005 - 1. Check the harness connection. 2. Replace the IOB 1. 3. Replace the RFID. -011 to -014 - 1. Check if the toner bottle is correctly installed in the machine. 2. Install the correct toner bottle in the machine. The suffix number of the SC code indicates the following: -011: K, -012: C, -013: M, -014: Y -015 to -018 - Replace the RFID. The suffix number of the SC code indicates the following: -015: K, -016: C, -017: M, -018: Y -019 to -030 - No action except turning off and on is required. The suffix number of the SC code indicates the following: -019/-023/-027: K, -020/-024/-028: C, -021/-025/-029: M, -022/-026/-030: Y -031 to -046 - Replace the toner bottle. The suffix number of the SC code indicates the following: -031/-035/-039/-043: K, -032/-036/-040/-044: C, -033/-037/-041/-045: M, -034/-038/-042/-046: Y -047 to -054 - No action except turning off and on is required. The suffix number of the SC code indicates the following: -047/-051: K, -048/-052: C, -049/-053: M, -050/-054: Y
• Remedy:

• Code: 683
• Description: Toner bottle checking error: Toner cartridge and RFID
• Causes: -035 To -045 - The machine detects a communication error between the toner cartridge and RFID at checking the toner bottles even though no toner bottle is installed in the machine. • Incorrect communication due to noise • ID chip defective or not installed in a toner cartridge 1. Check if the ID chip on the toner bottle is installed. 2. Install the correct toner bottle in the machine. The suffix number of the SC code indicates the following: -035/-039/-043: K, -036/-040/-044: C, -037/-041/-045: M, -038/-042/-045: Y
• Remedy:

• Code: 686
• Description: BCU-IPU communication error The BCU detects a communication error with the IPU three times consecutively.
• Causes: • BCU defective • IPU defective • I/F cable disconnected or broken
• Remedy: 1. Replace the BCU. 2. Replace the IPU. 3. Replace the I/F cable between BCU and IPU.

• Code: 701
• Description: ADF Pickup Roller Release Malfunction (D016/D097 only) The pick-up roller HP sensor does not activate or de-activate when the pick-up motor turns on.
• Causes: • HP sensor connector, harness loose, broken, defective • Pick-up motor connector, harness loose, broken defective • Pick-up roller HP sensor defective • Pick-up motor defective • ADF main control board defective
• Remedy: 1. Check the harness connections. 2. Replace the pick-up roller HP sensor. 3. Replace the pick-up motor. 4. Replace the main board of the ADF.

• Code: 702
• Description: ADF Feed-In Motor Error (D016/D097 only) While the feed motor is operating, the encoder pulse signal is not received within the specified time, or the paper size length encoder signal cannot be detected within the specified time (the encoder is built into the feed-in motor).
• Causes: • Feed-in motor connector, harness loose, broken, defective • Paper length sensor connector, harness loose, broken, defective • Feed-in motor defective • Paper length sensor or encoder is defective • ADF main control board defective
• Remedy: 1. Check the harness connections. 2. Replace the feed-in motor. 3. Replace the paper length sensor. 4. Replace the main board of the ADF.

• Code: 703
• Description: ADF Transport Belt Motor Error (D016/D097 only) The encoder pulse signal did not change within 100 ms after 3 attempts to detect any change, causing a "P1" jam error.
• Causes: • Transport belt motor defective • Poor connection between the transport motor and ADF main board • ADF main board defective
• Remedy: 1. Replace the transport belt motor. 2. Check or replace the harness connections. 3. Replace the transport belt motor.