• Code: 9510
• Description: ISC PWB error B
• Remedy: Main PWB DP SHD PWB 1. Reinsert the connector if its connection is loose. DP relay PWB (YC2) and DP SHD PWB (YC3) 2. Replace the main PWB. 3. Replace the DP SHD PWB. 4. Contact the Service Support.

• Code: 9520
• Description: ISC PWB error C
• Remedy: Main PWB ISC PWB 1. Reinsert the connector if its connection is loose. Main PWB (YC25) and ISC PWB (YC4) 2. Replace the main PWB. 3. Replace the ISC main PWB 4. Contact the Service Support.

• Code: 9940
• Description: Confidential document guard uninstalled error The confidential document guard PWB is removed while the confidential document guard PWB is valid.
• Remedy: Confidential document guard PWB 1. Check that the confidential document guard PWB is firmly installed and, if not, install firmly. 2. Replace the confidential document guard PW.

• Code: 9950
• Description: ISC PWB error C FPGA configuration error CPU version information error This is caused when the PWB of a double-side scanning DP is connected, the confidential guard PWB is inserted, and the harness is not correctly connected
• Remedy: Confidential document guard PWB 1. Replace the confidential document guard PW. 2. Replace the main PWB.

• Code: F000
• Description: Communication error between Main PWB and Operation PWB
• Remedy: Main PWB 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Check that the wirings and connetors between the main PWB and the operation PWB and between the main PWB and the HDD are normal. Main PWB (YC12,YC17,YC30) and Operation PWB (YC1,YC2,YC3) 3. Check that the DDR memories in the main PWB are well conducted and, if not, replace. 4. Execute U024 to initialize (FULL) the HDD. 5. Execute U021initialize memory. 6. Replace the Main PWB. 7. Copy the log File saved in the HDD by U964 in USB memory and contact the service support.
  Operation PWB Replace the operation PWB.

• Code: F000
• Description: CF000 appears in 60 seconds after the Welcome display continues Panel..Main board communication error Panel core..Main core communication error
• Remedy: 1) Check connection of the harness (Panel to Main board), (Main board to HDD) and connectors and check function. 2) Check contact of the DDR memory by detaching and reattaching. and check function. replace it if available and check function. 3) Format the HDD and check function. (U024 FULL formatting) 4) Execute the U021 Memory initializing to initialize the controller backup memory and check function. 5) Replace the main board and check function. 6) Replace the Panel board and check function. 7) Retrieve the USBLOG and contact the Service Administrative Division.

• Code: F010
• Description: Main PWB checksum error
• Remedy: Main PWB 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. If not corrected, replace the main PWB.

• Code: F040
• Description: Communication error between Main PWB and Print engine
• Remedy: Main PWB 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Repair or replace the wire from the engine PWB, that may be grounded. (Check short-circuit between 5V and 3.3V.) 3. Check that the FFC wire connecting between the Main PWB (YC3) and the engine PWB (YC46) is normal and, if necessary, re-insert.Or, replace the FFC wire. 4. If not corrected, replace the main PWB.
  Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
  HDD Replace the HDD.