Description: Warm-up failure
• It takes the surface temperature of the Left Fusing Roller more than 35 sec. to reach 100 °C since the start of a warm-up cycle. • It takes the surface temperature of the Left Fusing Roller more than 25 sec. to reach 140 °C after it has reached 100 °C. • It takes more than 20 sec. for the warm-up cycle to be completed after the surface temperature of the Left Fusing Roller has reached 140 °C.
Remedy: 1 • Fusing Heater Lamp (H1) turns ON. YES • Go to step 3. NO • Go to step 2. 2 Fusing Heater Lamp (H1) is open-circuited. <Check Procedure> Check the resistance across both ends of the Fusing Heater Lamp (H1). The Fusing Heater Lamp is open-circuited if the resistance is infinity. YES • Change Fusing Heater Lamp (H1). 3 Thermoswitch 1 (TS1) is operational. <Check Procedure> Check the resistance across both ends of the Thermoswitch 1 (TS1). The Thermoswitch 1 is open-circuited if the resistance is infinity. NO • Change Thermoswitch 1 (TS1). 4 Fusing Unit Interlock Switch (S2) is operational. <Check Procedure> Check continuity across terminals when the Fusing Unit Interlock Switch (S2) is turned ON. • Across S2-1A and S2-1B • Across S2-2A and S2-2B NO • Change Fusing Unit Interlock Switch (S2). YES • Change DC Power Supply (PU1). 5 Thermistor (TH1) is open-circuited. <Check Procedure> Check the resistance across CN15-2 and CN15-3 on the Fusing Unit side with CN15 disconnected. The Thermistor is open-circuited if the resistance is infinity. YES • Change Thermistor (TH1). 6 The following voltages are supplied from the Master Board (copier: PWBA). <Check Procedure> Check voltage across a Master Board (copier: PWB-A) pin and GND when the Power Switch is turned ON. • Voltage across PJ10A-7 and GND DC24 V when Fusing Heater Lamp (H1) is OFF DC0 V when Fusing Heater Lamp (H1) is ON • Voltage across PJ10A-10 and GND DC24 V when Fusing Heater Lamp (H1) is OFF DC0 V when Fusing Heater Lamp (H1) is ON NO • Change Master Board (copier: PWB-A).
Code: C0510
Description: Abnormally low fusing temperature
• The surface temperature of the Left Fusing Roller remains lower than 120 °C for a given period of time while the copier is in a standby state. • The surface temperature of the Left Fusing Roller remains lower than 120 °C for a given period of time during a print cycle.
Remedy: 1 • Fusing Heater Lamp (H1) turns ON. YES • Go to step 3. NO • Go to step 2. 2 Fusing Heater Lamp (H1) is open-circuited. <Check Procedure> Check the resistance across both ends of the Fusing Heater Lamp (H1). The Fusing Heater Lamp is open-circuited if the resistance is infinity. YES • Change Fusing Heater Lamp (H1). 3 Thermoswitch 1 (TS1) is operational. <Check Procedure> Check the resistance across both ends of the Thermoswitch 1 (TS1). The Thermoswitch 1 is open-circuited if the resistance is infinity. NO • Change Thermoswitch 1 (TS1). 4 Fusing Unit Interlock Switch (S2) is operational. <Check Procedure> Check continuity across terminals when the Fusing Unit Interlock Switch (S2) is turned ON. • Across S2-1A and S2-1B • Across S2-2A and S2-2B NO • Change Fusing Unit Interlock Switch (S2). YES • Change DC Power Supply (PU1). 5 Thermistor (TH1) is open-circuited. <Check Procedure> Check the resistance across CN15-2 and CN15-3 on the Fusing Unit side with CN15 disconnected. The Thermistor is open-circuited if the resistance is infinity. YES • Change Thermistor (TH1). 6 The following voltages are supplied from the Master Board (copier: PWBA). <Check Procedure> Check voltage across a Master Board (copier: PWB-A) pin and GND when the Power Switch is turned ON. • Voltage across PJ10A-7 and GND DC24 V when Fusing Heater Lamp (H1) is OFF DC0 V when Fusing Heater Lamp (H1) is ON • Voltage across PJ10A-10 and GND DC24 V when Fusing Heater Lamp (H1) is OFF DC0 V when Fusing Heater Lamp (H1) is ON NO • Change Master Board (copier: PWB-A).
Code: C0520
Description: Abnormally high fusing temperature
The surface temperature of the Left Fusing Roller remains higher than 240 °C for a given period of time.
Remedy: 1 Thermistor (TH1) is dirty. YES • Clean Thermistor (TH1). 2 Thermistor (TH1) is open-circuited. <Check Procedure> Check the resistance across CN15-2 and CN15-3 on the Fusing Unit side with CN15 disconnected. The Thermistor is open-circuited if the resistance is infinity. YES • Change Thermistor (TH1). NO • Change Master Board (copier: PWB-A).
Code: C0650
Description: Faulty Scanner Home Position Sensor
• The Scanner Home Position Sensor (PC6) does not go from HIGH to LOW when the Scanner Motor (M5) is energized for a given number of steps after the sequence to bring the Scanner back to its home position has been started at the end of a scan motion and during re-shading. • The Scanner Home Position Sensor (PC6) does not go from LOW to HIGH when the Scanner Motor (M5) is energized for a given number of steps after a scan motion has been started at the end of a Scanner Home Position Sensor home check scan motion and during re-shading.
Remedy: 1 Scanner Motor (M5) turns when the Power Switch is turned ON. NO • Change Scanner Motor (M5). 2 Scanner moves smoothly. <Check Procedure> Gently move the Scanner by hand to check for smooth operation. NO • Remove foreign matter and other obstacle. • Clean the Scanner rails. • Clean or change the Scanner bushings. • Reinstall Scanner. 3 Scanner Home Position Sensor (PC6) is operational. <Check Procedure> Check voltage across a Control Board (copier: PWB-C) pin and GND when the sensor is blocked. • Voltage across PJ18C-2 and GND DC5 V when unblocked DC0 V when blocked NO • Change Scanner Home Position Sensor (PC6). YES • Change Control Board (PWB-C).
Code: C0B60
Description: Bin Switching Motor malfunction
If the Upper Home Position Sensor is LOW during an initial operation: • The Lower Home Position Sensor (PC33) is LOW when the Bin Switching Motor (M1) starts turning forward. • If the Lower Home Position Sensor (PC33) does not go LOW at a time 2.5 sec. after the Bin Switching Motor (M1) has started turning forward, the Bin Switching Motor is kept deenergized for a given period of time and then energized again to turn backward. The Upper Home Position Sensor (PC32) does not go LOW after the motor has started turning backward. • The Upper Home Position Sensor (PC32) does not go HIGH at a time 1 sec. after the Bin Switching Motor (M1) has started turning forward. • When the Lower Home Position Sensor (PC33) goes LOW, the Bin Switching Motor (M1) starts turning backward. The Upper Home Position Sensor (PC32) does not go LOW at a time 2.5 sec. after the motor has started turning backward. • When the Lower Home Position Sensor (PC33) goes LOW, the Bin Switching Motor (M1) starts turning backward. The Lower Home Position Sensor (PC33) does not go HIGH at a time 1 sec. after the motor has started turning backward. If the Lower Home Position Sensor is LOW during an initial operation: • The Upper Home Position Sensor (PC32) does not go LOW at a time 2.5 sec. after the Bin Switching Motor (M1) has started turning backward. • The Lower Home Position Sensor (PC33) does not go HIGH at a time 1 sec. after the Bin Switching Motor (M1) has started turning backward. If both the Upper Home Position Sensor and the Lower Home Position Sensor are HIGH during an initial operation: • If the Lower Home Position Sensor (PC33) does not go LOW at a time 2.5 sec. after the Bin Switching Motor (M1) has started turning forward, the Bin Switching Motor is kept deenergized for a given period of time and then energized again to turn backward. The Upper Home Position Sensor (PC32) does not go LOW after the motor has started turning backward. • When the Lower Home Position Sensor (PC33) goes LOW, the Bin Switching Motor (M1) starts turning backward. The Upper Home Position Sensor (PC32) does not go LOW at a time 2.5 sec. after the motor has started turning backward. • When the Lower Home Position Sensor (PC33) goes LOW, the Bin Switching Motor (M1) starts turning backward. The Lower Home Position Sensor (PC33) does not go HIGH at a time 1 sec. after the motor has started turning backward.
Remedy: 1 Bin Switching Motor (JS-202: M1) turns when the Power Switch is turned ON. NO • Change Bin Switching Motor (JS- 202: M1). 2 Tray is moved as the Bin Switching Motor (JS-202: M1) operates. NO • Reinstall motor unit. 3 Upper Home Position Sensor (JS- 202: PC32) is operational. <Check Procedure> Check voltage across a Main Board (JS-202: PWB-A) pin and GND when the sensor is blocked. • Voltage across PJ4A-3 and GND DC0 V when unblocked DC5 V when blocked NO • Change Upper Home Position Sensor (PC32). 4 Lower Home Position Sensor (JS- 202: PC33) is operational. <Check Procedure> Check voltage across a Main Board (JS-202: PWB-A) pin and GND when the sensor is blocked. • Voltage across PJ4A-6 and GND DC0 V when unblocked DC5 V when blocked NO • Change Lower Home Position Sensor (PC33). YES • Change Master Board (copier: PWB-A).
Code: C0B80
Description: Shift Motor malfunction
• The Home Sensor (S31) is LOW at a timing immediately before the Shift Motor (M1) starts turning backward. • The Home Sensor (S31) is LOW after the lapse of a given period of time after the Shift Motor (M1) has started turning backward.
Remedy: 1 Shift Motor (OT-103: M1) turns when the Power Switch is turned ON. NO • Change Shift Motor (OT-103: M1). 2 Exit Roller operates as the Shift Motor (OT-103: M1) is energized. NO • Reinstall motor unit. 3 Home Sensor (OT-103: S31) is operational. <Check Procedure> Check voltage across a Main Board (OT-103: PWB-A) pin and GND when the sensor is blocked. • Voltage across PJ3A-3 and GND DC5 V when blocked DC0 V when unblocked NO • Change Home Sensor (OT-103: S31). YES • Change Master Board (copier: PWB-A).