Description: ROS error - The ROS Motor speed did not reach the normal speed continuously for 15 seconds during Warm Up or for 2 seconds during Run.
Causes: • HARNESS ASSY ROS • MCU PWB • ROS ASSY
Remedy: 1 Continuity check of HARNESS ASSY ANTENNA 1. Disconnect the P/J12 of the MCU PWB. 2. Disconnect the P/J120 of the ROS ASSY. 3. Check if the following wiring have continuity. J12-3 . J120-12 J12-4 . J120-11 J12-5 . J120-10 Do all of the wiring have continuity? To Step 2 Replace the HARNESS ASSY ROS 2 Power supply check of ROS Motor Check the voltage between the P/J12- 1 and P/J12-2 of the MCU PWB. Is the voltage between P/J12-1 and P/ J12-2 24 VDC? To Step 3 Replace the MCU PWB 3 Check of ROS ASSY 1. Replace the ROS ASSY. 2. Turn the main power on. Does the error occur? Replace the MCU PWB Problem solved
Code: E051
Description: Fuser unit error An error, such as Thermistor wire breakage, overheat or low temperature, occurred. - Fuser Low Temp Fail 2 (STS1) : The temperature detected by the Thermistor fell below 80 degrees three consecutive times. - Fuser Warm Up Fail : The temperature detected by the Thermopile does not reach the Ready temperature within 45 seconds after a Wait status. - Fuser Thermistor wire breakage (STS1) : The wire breakage of the Thermistor was detected three consecutive times. - Fuser Over Heat Fail 2 (STS1) : The temperature detected by the Thermistor exceeded 230 degrees three consecutive times. - Fuser Lamp Fail 2 : During Standby, SSR (in LVPS) was ON continuously for 10 seconds. - Fuser Lamp Fail 1 : During Run, SSR (in LVPS) was ON continuously for 60 seconds. - Fuser Low Temp Fail 1 (Thermopile) : Fuser Low Temp Fail 1 (Thermopile) - Fuser Over Heat Fail 1 (Thermopile) : The temperature detected by the Thermopile exceeded 230 degrees three consecutive times. - Thermopile NG : The check temperature during Thermopile cleaning became abnormal.
Remedy: 1 Check of Heat Roll Check the Heat Roll of the Fuser unit. Is the Heat Roll wound with paper? Remove the paper To Step 2 2 Continuity check of HARNESS ASSY R-TOP1 1. Disconnect the P/J15 of the MCU PWB. 2. Disconnect J151 and P/J153 of the SENSOR ASSY TP and P/J154 of the FUSER DRAWER CONNECTOR. 3. Check if the following wiring have continuity. J15-A1 . J151-4 J15-A2 . J151-3 J15-A3 . J151-2 J15-A4 . J151-1 J15-A9 . P153-2 J15-A10 . P153-1 J15-B1 . J154-7 J15-B2 . J154-6 J15-B3 . J154-5 J15-B4 . J154-4 J15-B5 . J154-3 J15-B6 . J154-2 J15-B7 . J154-1 Do all of the wiring have continuity? To Step 3 Replace the HARNESS ASSY RTOP1 3 Power supply to Thermopile of SENSOR ASSY TP 1. Make sure that the SENSOR ASSY TP is correctly connected. 2. Check the voltage between J151-2 and J151-4. Is the voltage 5 VDC between P151-2 and P151-4? To Step 4 Replace the SENSOR ASSY TP 4 Power supply to Wiper Solenoid of SENSOR ASSY TP 1.Make sure that the SENSOR ASSY TP is correctly connected. 2. Check the voltage between J153-1 and J153-2. Is the voltage 24 VDC between P153-1 and P153-2? To Step 5 Replace the SENSOR ASSY TP 5 Check of Thermistor of Fuser unit 1. Turn the main power on. 2. Check whether the error is displayed immediately or right after a short warm-up. Does the error still occur? To Step 6 Problem solved 6 Continuity check of FUSER DRAWER CONNECTOR 1. Disconnect the P/J103 of the LVPS 2. Disconnect the P/J158 of the FUSER DRAWER CONNECTOR 3. Check if the following wiring have continuity. J103-5 . J158-2 J103-3 . J158-1 J103-1 . J158-4 Do all of the wiring have continuity? To Step 7 Replace the FUSER DRAWER CONNECTOR 7 Check of Fuser unit 1. Replace the Fuser unit. Wait until the Fuser unit cools, and then start work. 2. Turn the main power on. Does the error occur? To Step 8 Problem solved 8 Continuity check of HARNESS ASSY R-BTM 1. Disconnect P/J10 of MCU PWB. 2. Disconnect P/J101 of LVPS. 3. Check if the following wiring have continuity. J10-12 . J151-9 J10-11 . J151-10 Do all of the wiring have continuity? To Step 9 Replace the HARNESS ASSY RBTM 9 Check of LVPS 1. Replace the LVPS. 2. Turn the main power on. Does the error occur? Replace the MCU PWB Problem solved
Code: E052
Description: NV-RAM error - Normal read/write from/to NVM (EEPROM) on the MCU PWB cannot be performed. - The MCU PWB (or X-ROM PWB) was replaced in error.
Causes: • MCU PWB • X-ROM PWB
Remedy: 1 Check of the MCU PWB Turn the main power off and then back on. Does the error occur again after the power is turned on? To Step 2 Problem solved 2 Check of the MCU PWB Turn the main power on and off several times. Does the error occur? To Step 3 Problem solved 3 Replacement of the EEPROM Replace the EEPROM on the MCU PWB. Does the error occur? To Step 4 Make adjustments that are indicated by adjustment icons. 4 Replacement of the MCU PWB After putting the removed EEPROM back to the place, replace the MCU PWB. Does the error occur? Put the removed MCU PWB back and then replace the X-ROM PWB. Problem solved Do not replace both the EEPROM and X-ROM PWB at one time. Doing so makes the printer unable to start up. When have replaced one of them, the stored data will be downloaded to the newly installed one from the other. (From EEPROM to X-ROM PWB, or From X-ROM PWB to EEPROM) Therefore, when replacing the EEPROM or the X-ROM PWB, be sure about the followings. • When replacing EEPROM: X-ROM PWB and MCU PWB should be those that originally come with the printer. • When replacing X-ROM PWB: EEPROM and MCU PWB should be those that originally come with the printer. Be sure to perform the followings after replacing the EEPROM. “5.1.2 Part/unit-based adjustment items” • Color Registration Adjustment • Writing correction values of the followings • Sensor Assy TP • Motor Disp (for 4 colors)
Code: E053
Description: Development Unit error - When Deve is brought into contact or separated, ON/OFF of the SENSOR ASSY TRACKING could not be confirmed within 2 sec after the MOTOR ASSY TRACKING was started.
Remedy: 1 Check of MOTOR ASSY TRACKING 1. Remove the COVER ASSY REAR. 2. Turn the main power on. 3. During warming-up operation of the printer, check the rotation of the blocking plate of the SHAFT ASSY TRACKING from the SENSOR ASSY TRACKING mounting section. Can you confirm that the SHAFT ASSY TRACKING turns? To Step 3 To Step 2 2 Continuity check of HARNESS ASSY DISP 1. Disconnect the P/J22 of the MCU PWB. 2. Disconnect the J222 of the MOTOR ASSY TRACKING. 3. Check if the following wiring have continuity. J22-4 . J222-1 J22-5 . J222-2 Do all of the wiring have continuity? Replace the MOTOR ASSY TRACKING Replace the HARNESS ASSY DISP 3 Continuity check of HARNESS ASSY P-SIZE 1. Disconnect the P/J29 of the MCU PWB. 2. Disconnect the J291 of the SENSOR ASSY TRACKING. 3. Check if the following wiring have continuity. J29-1 . J291-3 J29-2 . J291-2 J29-3 . J291-1 Do all of the wiring have continuity? To Step 4 Replace the HARNESS ASSY PSIZE 4 Check of SENSOR ASSY TRACKING 1. Replace the SENSOR ASSY TRACKING. 2. Turn the main power on. Does the error occur? Replace the MCU PWB Problem solved
Code: E054
Description: Fuser Fan error - The revolution speed of FAN FUSER or FAN LV has not reached to the specified value.
Remedy: 1 Operation check of the FAN FUSER Turn the main power on. Does the FAN FUSER rotate properly without occurrence of an error? Problem solved To Step 2 2 Continuity check of HARNESS ASSY R-TOP1 1. Disconnect the P/J104 of the LVPS. 2. Disconnect the relay connector P/ J1041 of the FAN FUSER. 3. Check if the following wiring have continuity. J104-1 . J1041-3 J104-2 . J1041-2 J104-3 . J1041-1 Do all of the wiring have continuity? To Step 3 Replace the HARNESS ASSY TOP1 3 Power supply to the FAN FUSER 1. Make sure that the FAN FUSER is correctly connected. 2. Check the voltage between J1041-1 and J1041-3. Is the voltage 24 VDC between J1041-1 and J1041-3? To Step 4 Replace the FAN FUSER 4 Check of FAN FUSER signal (FAN ALARM) Check continuity between P1041-2 and P1041-3. Do all of the wiring have continuity? To Step 5 Replace the FAN FUSER 5 Continuity check of HARNESS ASSY R-BTM 1. Disconnect the P/J101 of the LVPS. 2. Disconnect P/J10 of MCU PWB. 3. Check if the following wiring have continuity. J101-7 . P10-14 Do all of the wiring have continuity? To Step 6 Replace the HARNESS ASSY RBTM 6 Check of LVPS 1. Replace the LVPS. 2. Turn the main power on. Does the error occur? Replace the MCU PWB Problem solved
Code: E055
Description: LV Fan error - The revolution speed of FAN LV is abnormal.
Remedy: 1 Operation check of the FAN LV Turn the main power on. Does FAN LV rotates normally? Problem solved To Step 2 2 Power Supply for FAN LV 1. Check that the FAN LV is connected properly. 2. Check the voltage between P/J105-1 and P/J105-3. The voltage between P/J105-1 and P/ J105-3 is 24 VDC? To Step 3 Replace the LVPS 3 Check the signal of FAN LV (FAN ALARM) Check the voltage between P/J105-2 and GND. The voltage between P/J105-2 and GND is 3.3 VDC? To Step 4 Replace the MCU PWB 4 Continuity check of HARNESS ASSY R-BTM 1. Disconnect the P/J101 of the LVPS. 2. Remove the P/J10 of the MCU PWB. 3. Check if the following wiring have continuity. J101-8 . P10-13 J101-6 . P10-15 J101-5 . P10-16 Do all of the wiring have continuity? Replace the LV Replace the HARNESS ASSY RBTM