Causes: 1. Five times consecutive detection of no response from the device for more than 5ms on reading / writing. 2. Data read in 2 places does not match 8 consecutive times. 3. Writing data and reading data does not match 8 consecutive times.
Remedy: 1 Resetting the main power The EEPROM on the engine PWB does not operate properly. Turn the power switch and the main power switch off . After 5s passes, turn the main power switch and the power switch on. 2 Checking the EEPROM on the engine PWB The EEPROM is not properly attached. Reattach the EEPROM on the engine PWB. Detaching and reattaching the EEPROM 3 Replacing the EEPROM The EEPROM is faulty. Replace the EEPROM on the engine PWB and execute U169. Next, compare the setting value of the maintenance report outputted at U000 in advance and the setting value of the maintenance report outputted after replacing EEPROM, and change the setting value which are different. (Related maintenance mode: U053, U100, U101, U106, U140, U161, U464, U252, U034, U065, U066, U067) Finally, execute the following maintenance mode in the following order. U119 (for the 35 ppm or faster models) > U411 > U469 [Auto] > U140 [AC Calib] > U140 [Calibration] > U412 [Normal Mode] (for the 35 ppm or faster models) > U464 [Calib] (for the 35 ppm or faster models) > U410 > U155 [Calibration] (The empty waste toner box is necessary.) Maintenanc e Mode List Detaching and reattaching the Engine PWB 4 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB
Code: C0160
Description: EEPROM data error
Causes: The data read from the EEPROM is judged as abnormal.
Remedy: 1 Resetting the main power The EEPROM on the engine PWB does not operate properly. Turn the power switch and the main power switch off . After 5s passes, turn the main power switch and the power switch on. 2 Executing U021 The storage data in the EEPROM on the engine PWB is faulty. Execute U021. Maintenanc e Mode List 3 Replacing the EEPROM The EEPROM is faulty. Replace the EEPROM on the engine PWB and execute U169. Next, compare the setting value of the maintenance report outputted at U000 in advance and the setting value of the maintenance report outputted after replacing EEPROM, and change the setting value which are different. (Related maintenance mode: U053, U100, U101, U106, U140, U161, U464, U252, U034, U065, U066, U067) Finally, execute the following maintenance mode in the following order. U119 (for the 35 ppm or faster models) > U411 > U469 [Auto] > U140 [AC Calib] > U140 [Calibration] > U412 [Normal Mode] (for the 35 ppm or faster models) > U464 [Calib] (for the 35 ppm or faster models) > U410 > U155 [Calibration] (The empty waste toner box is necessary.) Maintenanc e Mode List Detaching and reattaching the Engine PWB
Code: C0170
Description: Charger count error
Causes: The values in one of the billing counters, life counter or the scanner counter mismatch between the main side and the engine side.
Remedy: 1 Checking the machine serial No. of the main PWB The main PWB for the different main unit is installed. Check the machine serial Nos of MAIN and ENGINE at U004, and install the correct main PWB if the MAIN No. differs. Maintenanc e Mode List Detaching and reattaching the Main PWB 2 Checking the machine serial No. in the EEPROM on the engine PWB The EEPROM for the different main unit is installed. Check the machine serial Nos of MAIN and ENGINE at U004, and install the correct EEPROM on the engine PWB if the ENGINE machine serial No. differs. Maintenanc e Mode List Detaching and reattaching the EEPROM 3 Checking the main PWB The main PWB is faulty. When the MAIN machine serial No. differs at U004, replace the main PWB and execute U004. Maintenanc e Mode List Detaching and reattaching the Main PWB 4 Checking the EEPROM on the engine PWB The EEPROM is faulty. If the machine serial number in the engine PWB is different at U004, reattach the EEPROM on the engine PWB. If not repairing, replace the EEPROM and execute U169. Next, compare the setting value of the maintenance report outputted at U000 in advance and the setting value of the maintenance report outputted after replacing EEPROM, and change the setting value which are different. (Related maintenance mode: U053, U100, U101, U106, U140, U161, U464, U252, U034, U065, U066, U067) Finally, execute the following maintenance mode in the following order. U119 (for the 35 ppm or faster models) > U411 > U469 [Auto] > U140 [AC Calib] > U140 [Calibration] > U412 [Normal Mode] (for the 35 ppm or faster models) > U464 [Calib] (for the 35 ppm or faster models) > U410 > U155 [Calibration] (The empty waste toner box is necessary.) Maintenanc e Mode List Detaching and reattaching the Engine PWB 5 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB
Code: C0180
Description: Machine serial number mismatch
Causes: The machine serial Nos. in the main PWB and the EEPROM on the engine PWB mismatch when turning the power on.
Remedy: 1 Checking the machine serial No. of the main PWB The main PWB for the different main unit is installed. Check the machine serial Nos of MAIN and ENGINE at U004, and install the correct main PWB if the MAIN No. differs. Maintenanc e Mode List Detaching and reattaching the Main PWB 2 Checking the machine serial No. in the EEPROM on the engine PWB The EEPROM for the different main unit is installed. Check the machine serial Nos of MAIN and ENGINE at U004, and install the correct EEPROM on the engine PWB if the ENGINE machine serial No. differs. Maintenanc e Mode List Detaching and reattaching the EEPROM 3 Replacing the main PWB The main PWB is faulty. When the MAIN machine serial No. differs at U004, replace the main PWB and execute U004. Maintenanc e Mode List Detaching and reattaching the Main PWB 4 Checking the EEPROM on the engine PWB The EEPROM is faulty. If the machine serial number in the engine PWB is different at U004, reattach the EEPROM on the engine PWB. If not repairing, replace the EEPROM and execute U169. Next, compare the setting value of the maintenance report outputted at U000 in advance and the setting value of the maintenance report outputted after replacing EEPROM, and change the setting value which are different. (Related maintenance mode: U053, U100, U101, U106, U140, U161, U464, U252, U034, U065, U066, U067) Finally, execute the following maintenance mode in the following order. U119 (for the 35 ppm or faster models) > U411 > U469 [Auto] > U140 [AC Calib] > U140 [Calibration] > U412 [Normal Mode] (for the 35 ppm or faster models) > U464 [Calib] (for the 35 ppm or faster models) > U410 > U155 [Calibration] (The empty waste toner box is necessary.) Maintenanc e Mode List Detaching and reattaching the Engine PWB 5 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB
Code: C0350
Description: Panel PWB communication error (Electronic volume I2C communication error)
Causes: Since NACK was received during the I2C communication, the retry was repeated 5 times and the initial command was transmitted, and then the retry was repeated 5 times again. After that, NACK was also received.
Remedy: 1 Resetting the main power The operation of the operation panel main PWB is faulty. Turn the power switch and the main power switch off . After 5s passes, turn the main power switch and the power switch on. 2 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. • Operation panel main PWB - Main PWB • Operation panel main PWB - NFC PWB Service Manual - Section 8 'PWBs' 3 Replacing the operation panel main PWB The operation panel main PWB is faulty. Replace the panel main PWB. Detaching and reattaching the Operation Panel Main PWB 4 Replacing the main PWB The main PWB is faulty. Replace the main PWB. Detaching and reattaching the Main PWB 5 Replacing the NFC PWB The NFC PWB is faulty. Replace the NFC PWB.
Code: C0361
Description: Communication error between the engine CPU and the feed ASIC
Causes: The communication with the feed ASIC failed 10 times continuously.
Remedy: Resetting the main power The engine PWB does not operate properly. Turn the power switch and the main power switch off . After 5s passes, turn the main power switch and the power switch on. 2 Firmware upgrade The firmware is not the latest version. Upgrade the engine firmware to the latest version Firmware Update 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. • Feed drive PWB - Engine PWB Service Manual - Section 8 'PWBs' 4 Replacing the feed drive PWB The feed drive PWB is faulty. Replace the feed drive PWB. 5 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB