• Code: F000
• Description: Communication error between Main PWB - Operation panel PWB
• Remedy: Main PWB 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug in the power cord and then turn on the power switch. 2. Check the wiring and connectors between the main PWB - the operation panel PWB. Operation panel PWB - Main PWB (YC2002): 30 ppm model - Main PWB (YC12) : 35/40 ppm model 3. Check the connection of the DDR memory on the main PWB by reinstalling it or replacing it. 4. Execute U021 initialize memory. 5. Replace the main PWB.
  Operation panel PWB Replace the operation panel PWB.

• Code: F010
• Description: Main PWB Checksum error
• Remedy: Main PWB 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug in the power cord and then turn on the power switch. 2. If not corrected, replace the main PWB and check operation.

• Code: F020
• Description: Main PWB memory error In case an error occurs at the start-up DIMM read/ write check.
• Remedy: Main PWB 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug in the power cord and then turn on the power switch. 2. If not corrected, replace the main PWB and check operation.

• Code: F040
• Description: Communication error between controller - Print engine
• Remedy: Main PWB Engine PWB 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug in the power cord and then turn on the power switch. 2. Repair or replace the wire from the main PWB that may be grounded. (Check for a short-circuit between 5V and 3.3V.) 3. Check the connector of the FFC connecting the main PWB to the engine PWB and reconnect it. Or replace the FFC. 4. Check both the main and engine firmware, and upgrade to the latest version, if necessary. 5. Replace the main PWB. 6. Replace the engine PWB.

• Code: F050
• Description: Print engine main program error
• Remedy: Engine PWB 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug in the power cord and then turn on the power switch. 2. Confirm that the EEPROM has been properly installed. 3. Check both the main and engine firmware, and upgrade to the latest version, if necessary. 4. If not corrected, replace the engine PWB.

• Code: F12X
• Description: An error is detected at scan control section
• Remedy: 1. Check connection of the harness (Scan/DP - Main PWB) and connectors and check function. 2. Format the HDD and check function. (U024 FULL formatting) * 3. Execute the U021Memory initializing to initialize the controller backup memory and check function. 4. Replace the Scan/DP board and check function. 5. Replace the Main PWB and check function. 6. Retrieve the USBLOG and contact the Service Administrative Division. *: HDD standard model only

• Code: F13X
• Description: An error is detected at panel control section
• Remedy: 1. Check connection of the harness (Panel - Main PWB) and connectors and check function. 2. Format the HDD and check function. (U024 FULL formatting) * 3. Execute the U021Memory initializing to initialize the controller backup memory and check function. 4. Replace the Operetion panel PWB and check function. 5. Replace the Main PWB and check function. 6. Retrieve the USBLOG and contact the Service Administrative Division. *: HDD standard model only

• Code: F14X
• Description: An error is detected at the FAX control section
• Remedy: 1. Check connection of the harness (FAX - Main PWB) and connectors and check function. 2. Format the HDD and check function. (U024 FULL formatting) * 3. Execute the U021 Memory initializing to initialize the controller backup memory and check function. 4. Execute the U671 Clear FAX back up data (FAX DIMM clear) and check function. *2 (Take cae of the received data since it is cleared) 5. Replace the FAX_DIMM and check function. *2 6. Replace the FAX board and check function. 7. Replace the Main PWB and check function. 8. Retrieve the USBLOG and contact the Service Administrative Division. *: HDD standard model only *2: Models with the flash memory for FAX data only